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Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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27-10-2016 дата публикации

Рентгеновская трубка с составным анодом

Номер: RU0000165638U1
Автор: Александр Юрьевич Гойхман, Наталия Борисовна Климова, Сергей Константинович Савельев
Принадлежит: Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Балтийский федеральный университет имени Иммануила Канта"

1. Рентгеновская трубка, выполненная в геометрии прострельного типа, содержащая анод, катод, систему фокусировки пучка электронов, выходное бериллиевое окно, отличающаяся тем, что анод выполнен в виде нанесенной на внутреннюю поверхность выходного бериллиевого окна рентгеновской трубки системы из, по крайней мере, двух неперекрывающихся сегментов, выполненных из различных химических элементов, а система фокусировки выполнена с возможностью изменения параметров электрического поля таким образом, чтобы обеспечивать падение электронного пучка на определенный сегмент анода трубки, что обеспечивает получение рентгеновского излучения, спектральный состав которого определяется атомным номером элемента, из которого изготовлен соответствующий сегмент.2. Рентгеновская трубка по п. 1, отличающаяся тем, что система неперекрывающихся сегментов на внутренней поверхности выходного бериллиевого окна рентгеновской трубки выполнена напылением.3. Рентгеновская трубка по п. 1, отличающаяся тем, что система фокусировки пучка электронов содержит, по крайней мере, одну внешнюю магнитную систему дефокусировки и сканирования. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК H01J 35/02 (11) (13) 165 638 U1 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ТИТУЛЬНЫЙ (21)(22) Заявка: ЛИСТ ОПИСАНИЯ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ 2015150259/07, 24.11.2015 (24) Дата начала отсчета срока действия патента: 24.11.2015 (45) Опубликовано: 27.10.2016 Бюл. № 30 Адрес для переписки: 141074, Московская обл., г. Королев-4, а/я 825 (73) Патентообладатель(и): Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Балтийский федеральный университет имени Иммануила Канта" (RU) U 1 1 6 5 6 3 8 R U Стр.: 1 U 1 (57) Формула полезной модели 1. Рентгеновская трубка, выполненная в геометрии прострельного типа, содержащая анод, катод, систему фокусировки пучка электронов, выходное бериллиевое окно, отличающаяся тем, что анод выполнен в виде нанесенной на внутреннюю ...

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Номер записи: 1
12-01-2012 дата публикации

X-ray system with superconducting anode

Номер: US20120008749A1
Автор: Jihad H. Al-Sadah
Принадлежит: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

The x-ray system with a superconducting anode includes an anode of x-ray machine made from a material capable of superconductivity, which is then cooled to be in superconducting state while being bombarded by an electron beam to generate x-rays. If a non-superconducting heat island is formed, then a magnetic field is used to penetrate this region and spread the heat in the form of hot electrons over the target material.

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Номер записи: 2
19-01-2012 дата публикации

X-Ray Tube Anodes

Номер: US20120014510A1
Автор: Edward James Morton, Martin Hunt, Russell David Luggar
Принадлежит: Rapiscan Systems Inc

An anode for an X-ray tube includes at least one thermally conductive anode segment in contact with a rigid support member and cooling means arranged to cool the anode. The anode may further include a plurality of anode segments aligned end to end, each in contact with the support member.

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Номер записи: 3
02-02-2012 дата публикации

Industrial x-ray tube

Номер: US20120027177A1
Автор: Kiyoshi Ogata, Makoto Kanbe, Naohisa Osaka, Takahisa Sato, Tetsuo Kani, Yoshihiro Takeda
Принадлежит: Rigaku Corp

An industrial X-ray tube formed by accommodating a cathode and anode in a container having an evacuated interior, in which electrons emitted from the cathode are caused to strike the anode and X-rays are emitted from the anode. The cathode is formed from graphite. The graphite is a layered crystal obtained by layering a plurality of carbon hexagonal planes. The graphite is cut based on crystal axes of the carbon hexagonal planes. The resulting cut surface is caused to function as an electron-emitting surface. For example, directions of an a- and b-crystal axis may be set so as to be arbitrary between each of the layers of the carbon hexagonal planes, the graphite may be cut along a surface parallel to the c-axis, and the resulting cut surface may be caused to function as an electron-emitting surface. The graphite may also be cut along a surface orthogonal to the c-axis.

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Номер записи: 4
12-04-2012 дата публикации

Polymer layer on x-ray window

Номер: US20120087476A1
Автор: Brian Taylor, Jason Maynard, Keith Decker, Steven Liddiard
Принадлежит: Moxtek Inc

An x-ray window comprising a plurality of thin film layers stacked together, including a thin film layer and a polymer layer. The thin film layer can be diamond, graphene, diamond-like carbon, beryllium, and combinations thereof. The polymer layer can be a polyimide. A boron hydride layer may also be included.

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Номер записи: 5
17-05-2012 дата публикации

Method and apparatus of differential pumping in an x-ray tube

Номер: US20120121065A1
Автор: Carey Shawn Rogers, Richard Michael Roffers
Принадлежит: General Electric Co

An x-ray tube includes a casing having a cathode and an anode enclosed therein, and a separator attached to an inner wall of the casing and having a conductance limiter therein, the separator positioned to separate the anode from the cathode.

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Номер записи: 6
28-06-2012 дата публикации

X-ray generator

Номер: US20120163550A1
Автор: Koichi Kato, Masahiro Nonoguchi, Masaru Kuribayashi, Masashi Kageyama, Tomohiro Chaki
Принадлежит: Rigaku Corp

Provided is an X-ray generator for generating X-rays from an X-ray focal point that is a region in which electrons emitted from a filament impinge upon a rotating anode. The X-ray generator has a Wehnelt electrode for surrounding the filament, an attachment part formed integrally with the Wehnelt electrode, a pedestal to which the attachment part is attached, and a casing for housing the pedestal and the anticathode. The width of the space in which the anticathode is housed by the casing is less than the width of the space in which the pedestal is housed by the casing. The Wehnelt electrode extends into the space in which the anticathode is housed by the casing, in a state in which the attachment part is attached to the pedestal.

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Номер записи: 7
12-07-2012 дата публикации

X-ray shielded connector

Номер: US20120178297A1
Автор: Edward Emaci, Ron Kent Hockersmith, Thomas Dean Schaefer
Принадлежит: General Electric Co

The present embodiments relate to off-focal X-ray radiation attenuation within a connector. In one embodiment, a connector X-ray shielding capabilities is provided. The connector includes a housing with openings for an electrical cable as well as an electrical connection. The connector further includes an X-ray shielding liner made of moldable synthetic material doped with an X-ray attenuating material. The X-ray shielding liner is disposed within the housing, and also includes openings for the electrical cable and electrical connection.

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Номер записи: 8
08-11-2012 дата публикации

X-ray tube and method to operate an x-ray tube

Номер: US20120281815A1
Автор: Dieter Matuszok, Sven Fritzler, Thomas Ferger
Принадлежит: SIEMENS AG

An x-ray tube has an evacuated, rotatable housing in which are arranged a cathode designed to emit an electron beam and an anode interacting with this cathode, and two quadrupole magnet systems arranged outside of the housing and spaced apart from one another that are provided to influence the electron beam.

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Номер записи: 9
27-12-2012 дата публикации

X-ray tube

Номер: US20120328081A1
Автор: Gerhard Fenkart
Принадлежит: Microtec SRL

An X-ray tube comprises a containment element ( 2 ) in which a cathode ( 4 ) and an anode ( 5 ) are mounted. The anode ( 5 ) comprises a first main face ( 6 ) which is substantially facing towards the cathode ( 4 ) and a second main face ( 7 ) which is facing the opposite way to the first face ( 6 ). There are also cooling means ( 8 ) applied to the second main face ( 7 ) of the anode ( 5 ) and filter means ( 10 ) for filtering, based on respective wavelengths, the X-rays emitted by the anode ( 5 ). The cooling means ( 8 ) and the filter means ( 10 ) both consist of a heat conductor element ( 9 ) which is thermally coupled with the second face ( 7 ) of the anode ( 5 ) and which is equipped with a plurality of inner micro-channels in which, in practice, a pressurised coolant liquid can flow with a turbulent motion. The containment element also comprises an X-ray emission section ( 3 ) positioned in such a way that, in practice, it receives the X-rays emitted from the second main face ( 7 ) of the anode ( 5 ) after they have passed through the filter means ( 10 ).

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Номер записи: 10
07-02-2013 дата публикации

Radiation generating apparatus and radiation imaging apparatus

Номер: US20130034207A1
Автор: Kazuyuki Ueda, Koji Yamazaki, Miki Tamura, Shuji Aoki, Yoshihiro Yanagisawa
Принадлежит: Canon Inc

The present invention relates to a radiation generating apparatus which includes an envelope provided with a first window through which radiation is transmitted, a radiation tube housed in the envelope and provided with a second window through which the radiation is transmitted, the second window being located at a position opposite the first window, and an insulating fluid adapted to fill between the inner wall of the envelope and the radiation tube. Plural plates are arranged side by side between the first window including its periphery and the second window including its periphery by overlapping one another via gaps. The gaps is formed among the plates, thereby the withstanding voltage between the first window and second window is made larger.

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Номер записи: 11
21-03-2013 дата публикации

INTERFACE FOR LIQUID METAL BEARING AND METHOD OF MAKING SAME

Номер: US20130070902A1
Автор: Lathrop Michael Allan
Принадлежит: GENERAL ELECTRIC COMPANY

An x-ray tube includes a cathode and a target assembly positioned to receive electrons emitted from the cathode. The target assembly includes a target, and a spiral groove bearing (SGB) configured to support the target. The SGB includes a rotatable component having a first surface and a first material attached to the first surface, a stationary component having a second surface and a second material attached to the second surface, the stationary component positioned such that a gap is formed between the first material and the second material, and a liquid metal positioned in the gap, wherein at least one of the first and second materials comprises tantalum. 120-. (canceled)21. A target assembly comprising:a shaft having a first material attached to an outer surface thereof;a sleeve configured to support a target and having a second material attached to an inner surface thereof; anda liquid metal positioned between the first material and the second material;wherein at least one of the first and second materials comprises tantalum.22. The target assembly of wherein one of the sleeve and shaft comprises one of refractory metal or refractory metal alloy claim 21 , a superalloy claim 21 , Kovar® claim 21 , a tool steel claim 21 , a FeNi alloy claim 21 , a maraging steel claim 21 , Glidcop® claim 21 , and stainless steel.23. The target assembly of comprising:a first bond material positioned between the shaft and the first material; anda second bond material positioned between the sleeve and the second material.24. The target assembly of comprising spiral grooves in at least one of the first and second materials claim 21 , wherein the spiral grooves are not in the one of the shaft and the sleeve to which the first and second materials are attached.25. The target assembly of wherein a thickness of one of the first and second materials is 1 mm or greater.26. The target assembly of wherein one of the shaft and sleeve is rotatable with respect to the other of the shaft and ...

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Номер записи: 12
28-03-2013 дата публикации

X-RAY TUBE WITH SEMICONDUCTOR COATING

Номер: US20130077758A1
Автор: Miller Eric J.
Принадлежит:

An x-ray tube with a semiconductor coating disposed over an exterior the tube. The semiconductor material reduces voltage gradients. 1. An x-ray tube comprising:a) an evacuated enclosure;b) a cathode attached to the evacuated enclosure and configured to emit electrons within the enclosure;c) an anode attached to the evacuated enclosure, configured to receive electrons emitted from the cathode, and configured to emit x-rays in response to impinging electrons;d) a semiconductor coating disposed over an exterior of the evacuated enclosure; ande) an electrically insulative potting material disposed over an outer surface of the semiconductor coating.2. The x-ray tube of claim 1 , wherein the semiconductor coating comprises silicon.3. The x-ray tube of claim 1 , wherein a thickness of the semiconductor coating is between 10% and 75% of an outer diameter of the evacuated enclosure.4. The x-ray tube of claim 1 , wherein a thickness of the semiconductor coating is between 10% and 60% of an outer diameter of the evacuated enclosure and a thickness of the potting is between 20% and 70% of the outer diameter of the evacuated enclosure.5. The x-ray tube of claim 1 , wherein a thickness of the semiconductor coating is between 10% and 100% of a thickness of the potting.11. The x-ray tube of claim 1 , wherein the semiconductor coating covers substantially all of the exterior of the evacuated enclosure and a junction between the evacuated enclosure and the cathode.12. The x-ray tube of claim 1 , wherein the semiconductor coating covers at least 75% of the exterior of the evacuated enclosure and substantially all of a junction between the evacuated enclosure and the cathode.13. The x-ray tube of claim 1 , wherein the semiconductor coating is disposed directly on top of and attached directly to the evacuated enclosure and the potting material is disposed directly on top of and attached directly to the semiconductor material.14. The x-ray tube of claim 1 , wherein the semiconductor ...

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Номер записи: 13
18-04-2013 дата публикации

POLYMER LAYER ON X-RAY WINDOW

Номер: US20130094629A1
Автор: Decker Keith, Liddiard Steven, Maynard Jason, Taylor Brian
Принадлежит: Moxtek, Inc.

An x-ray window includes a mount with a support frame and an aperture. A window film has a stack of layers including: a thin film layer comprising a material selected from the group consisting of diamond, graphene, diamond-like carbon, beryllium, and combinations thereof; a boron hydride layer; and a polymer layer. The window film, including the thin film layer, the boron hydride layer, and the polymer layer, extends across the aperture and is supported by the support frame. The window film is attached to the support frame, defining a sealed joint. The layers are capable of withstanding a differential pressure of at least 1 atmosphere. The window film is substantially transmissive to x-rays having an energy in the range of 100-20,000 electronvolts. 1. An x-ray window comprising:a. a mount, including a support frame and an aperture; i. a thin film layer comprising a material selected from the group consisting of diamond, graphene, diamond-like carbon, beryllium, and combinations thereof;', 'ii. a boron hydride layer; and', 'iii. a polymer layer;, 'b. a window film having a stack of layers includingc. the window film, including the thin film layer, the boron hydride layer, and the polymer layer, extending across the aperture and supported by the support frame;d. the window film attached to the support frame defining a sealed joint;e. the layers are capable of withstanding a differential pressure of at least 1 atmosphere; andf. the window film substantially transmissive to x-rays having an energy in the range of 100-20,000 electronvolts.2. The x-ray window of claim 1 , wherein:a. the sealed joint comprises a bond between the thin film layer and the mount at a perimeter of the thin film layer;b. the boron hydride layer and the polymer layer extend beyond the perimeter of the thin film layer; andc. the boron hydride layer and the polymer layer provide corrosion protection to the sealed joint.3. The x-ray window of claim 2 , wherein the bond is a diffusion bond claim 2 , ...

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Номер записи: 14
25-04-2013 дата публикации

Device housing and method for making the same

Номер: US20130101765A1
Автор: Chao-Sheng Huang, ren-bo Wang, Xin-Wu Guan
Принадлежит: Fih Hong Kong Ltd, Shenzhen Futaihong Precision Industry Co Ltd

A device housing includes a substrate and a decorative article formed in the substrate. The substrate defines a cutout therein and the decorative article is received in the cutout and bonded with the substrate. The decorative article is a glass article which is formed in the cutout by molding softened glass material into the cutout. A method for making the device housing is also provided.

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Номер записи: 15
02-05-2013 дата публикации

X-RAY SOURCE, X-RAY IMAGING APPARATUS, AND X-RAY COMPUTED TOMOGRAPHY IMAGING SYSTEM

Номер: US20130108012A1
Автор: Sato Genta
Принадлежит: CANON KABUSHIKI KAISHA

An X-ray imaging apparatus includes: an X-ray source including an electron source and a target, the target having a plurality of projections, each having an emitting surface; a diffraction grating configured to diffract X rays emitted from the X-ray source; and a detector configured to detect the X rays diffracted by the diffraction grating. Electron beams output from the electron source are incident on the emitting surfaces so that X rays are emitted from the emitting surfaces and are output to the diffraction grating. The X rays emitted from the emitting surfaces are diffracted by the diffraction grating so as to form a plurality of interference patterns. The projections are arranged such that bright portions of the interference patterns overlap each other and such that dark portions thereof overlap each other. Distances from the emitting surfaces to the diffraction grating are equal to each other. 1. An X-ray imaging apparatus comprising:an X-ray source including an electron source and a target, the target having a plurality of projections, each of the plurality of projections having an emitting surface;a diffraction grating configured to diffract X rays emitted from the X-ray source; anda detector configured to detect the X rays diffracted by the diffraction grating,wherein electron beams output from the electron source are incident on the emitting surfaces of the plurality of projections so that X rays are emitted from the emitting surfaces and are output to the diffraction grating, the X rays emitted from the emitting surfaces are diffracted by the diffraction grating so as to form a plurality of interference patterns, the plurality of projections are arranged such that bright portions of the plurality of interference patterns overlap each other and such that dark portions of the plurality of interference patterns overlap each other, and distances from the plurality of emitting surfaces to the diffraction grating are equal to each other.2. The X-ray imaging ...

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Номер записи: 16
04-07-2013 дата публикации

FOCAL TRACK OF A ROTATING ANODE HAVING A MICROSTRUCTURE

Номер: US20130170624A1
Автор: Freudenberger Jörg, Lampenscherf Stefan, Schäff Wolfgang, WALTER Steffen
Принадлежит:

A rotating anode includes a focal track that has a microstructure on a surface of the focal track. The microstructure is produced using deep reactive ion etching. 1. A rotating anode comprising:a focal track that has a microstructure on a surface of the focal track,wherein the microstructure is produced by deep reactive ion etching.2. The rotating anode as claimed in claim 1 , wherein the microstructure has a depth of at least approximately 40 micrometers claim 1 , in particular at least approximately 50 micrometers.3. The rotating anode as claimed in claim 2 , wherein the depth is at least approximately 50 micrometers.4. The rotating anode as claimed in claim 2 , wherein the depth is up to approximately 150 micrometers.5. The rotating anode as claimed in claim 4 , wherein the depth is up to approximately 100 micrometers.6. The rotating anode as claimed in claim 1 , wherein the microstructure has a width of between 2 micrometers and 15 micrometers.7. The rotating anode as claimed in claim 6 , wherein the width is between 3 micrometers and 10 micrometers.8. The rotating anode as claimed in claim 7 , wherein the width is between 5 micrometers and 10 micrometers.9. The rotating anode as claimed in claim 1 , wherein the microstructure has at least one trench.10. The rotating anode as claimed in claim 9 , wherein the at least one trench comprises a plurality of trenches arranged in a lattice-like pattern.11. The rotating anode as claimed in claim 10 , wherein a distance between adjacent claim 10 , substantially mutually parallel trenches of the plurality of trenches is between approximately 100 micrometers and 300 micrometers.12. The rotating anode as claimed in claim 10 , wherein a ratio between a width of a trench of the plurality of trenches and a distance from an adjacent claim 10 , substantially parallel trench of the plurality of trenches is at least 0.1.13. The rotating anode as claimed in claim 11 , wherein a ratio between a width of a trench of the plurality of ...

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Номер записи: 17
11-07-2013 дата публикации

X-Ray Tube

Номер: US20130177137A1
Автор: Eichhorn Richard, Hoffmann Christian, MATSCHULLA JAN, Pham Gia Khanh
Принадлежит:

An X-ray tube includes a vacuum-filled housing and an anode contained in the vacuum-filled housing. The anode is operable to produce an X-ray beam based on electrons emitted from a cathode and attracted by a high voltage applied to the anode. The X-ray tube also includes a high-voltage power line introduced from an external side of the housing for supplying the anode with a high-voltage potential. The X-ray tube includes an electrical feed for electrically insulating the high-voltage power line from the housing. The electrical feed in the X-ray tube includes at least two insulating layers radially between the high-voltage power line and the housing. The at least two insulating layers are separated from one another by a metallic coating. 1. An X-ray tube comprising:a housing that is vacuum-filled;an anode contained in the housing, the anode operable to produce an X-ray beam based on electrons emitted from a cathode and attracted to high-voltage applied to the anode;a high-voltage power line introduced from an external side of the housing, the high-voltage power line operable for supplying the anode with a high-voltage potential; andan electrical feed operable for electrically insulating the high-voltage power line from the housing, the electrical feed comprising at least two insulating layers radially between the high-voltage power line and the housing, the at least two insulating layers being separated from one another by a metallic coating.2. The X-ray tube as claimed in claim 1 , wherein the at least two insulating layers have an axial length from a perspective of the high-voltage power line claim 1 , the axial length decreasing radially from the high-voltage power line to the housing.3. The X-ray tube as claimed in claim 1 , wherein the metallic coating is embedded between the at least two insulating layers.4. The X-ray tube as claimed in claim 1 , wherein one material of each insulating layer of the at least two insulating layers is inorganic.5. The X-ray tube ...

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Номер записи: 18
18-07-2013 дата публикации

X-ray tube cathode with magnetic electron beam steering

Номер: US20130182825A1
Автор: James Russell Boye, Robert Clark Treseder
Принадлежит: Varian Medical Systems Inc

An x-ray tube cathode with magnetic electron beam steering. In one example embodiment, an x-ray tube cathode includes a cathode head and an electron emitter. The cathode head includes electrically conductive and non-magnetic material integrated with magnetic material. The cathode head defines an emitter slot in a portion of electrically conductive and non-magnetic material positioned between two portions of magnetic material. The electron emitter is positioned within the emitter slot. The electron emitter is configured to emit a beam of electrons. The beam of electrons is configured to be both focused by the electrically conductive and non-magnetic material and steered during beam formation by the magnetic material.

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Номер записи: 19
15-08-2013 дата публикации

MIRCOFOCUS X-RAY TUBE FOR A HIGH-RESOLUTION X-RAY APPARATUS

Номер: US20130208870A1
Автор: Neuser Eberhard, Schmitt Andreas, Sperner Wolfgang Johannes
Принадлежит:

An apparatus is provided for a micro focus X-ray tube for a high-resolution X-ray comprising a housing, an electron beam source for generating an electron beam and a focusing lens for focusing the electron beam on a target. The X-ray tube comprises a substantially rotationally symmetrical, ring-shaped cooling chamber configured to circulate a liquid cooling medium. 1. A micro focus X ray tube for a high resolution X-ray apparatus , the X-ray tube comprising: an electron beam source for generating an electron beam;', 'a focusing lens for focusing the electron beam; and', 'a substantially rotationally symmetrical, ring-shaped cooling chamber positioned within the housing configured to circulate a liquid cooling medium., 'a housing having;'}2. The X-ray tube according to claim 1 , wherein the cross-sectional area of the cooling chamber in a longitudinal cross section is at least approximately five times as large as the cross-sectional area of at least one cooling duct which is connected to the cooling chamber.3. The X-ray tube according to claim 1 , wherein the cooling chamber comprises an orifice and a wall and wherein an internal dimension of the cooling chamber orifice in a longitudinal cross-section is larger than the wall thickness of the cooling chamber walls.4. The X-ray tube according to claim 1 , wherein the cooling chamber comprises the shape of an annular cylinder.5. The X-ray tube according to claim 1 , wherein an inlet and an outlet for the cooling medium in a circumferential direction of the tube are arranged offset to one another.6. The X-ray tube according to claim 1 , wherein an inlet and an outlet for the cooling medium are arranged opposite with respect to the tube axis.7. The X-ray tube according to claim 1 , wherein the cooling chamber is arranged adjacent to a coil of the focusing lens.8. The X-ray tube according to claim 1 , wherein the cooling chamber comprises a wall claim 1 , the wall comprising a material having a thermal conductivity of at ...

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Номер записи: 20
05-09-2013 дата публикации

X-Ray Tube

Номер: US20130230147A1
Автор: Kogure Yuuichi, Marushima Yoshihisa, MATSUMOTO Akira, Nakamura Kazuhito
Принадлежит: FUTABA CORPORATION

An X-ray tube is disclosed. The X-ray tube includes a substrate, a box-shaped case attached to the substrate and being in a high-vacuum state, an X-ray target arranged in the opening of the first substrate in the inside of the case, and a cathode arranged in the case and supplying an electron to the X-ray target. The substrate includes first and second substrates made of 426 alloy and respectively having an opening of honeycomb structure, and an X-ray transmissive window sandwiched between the first and second substrates which is made of a titanium foil and close the opening. The X-ray transmissive window is reinforced by a honeycomb structure of the substrate from both surfaces. Thus, the substrate and the X-ray transmissive window are not deformed, and strength of the package is improved. 1. A X-ray tube comprising:a substrate including radiopaque first and second substrates made of a metal;a rectangular or slit shaped opening arranged in each of said first and second substrates having a framework;an X-ray transmissive window arranged on the substrate, said X-ray transmissive window being sandwiched between the first and second substrates and closing the opening;a box shaped case attached to the substrate, the inside of said case being in high-vacuum state;an X-ray target arranged on the opening of the substrate in the inside of the case and adhering to the X-ray transmissive window, andan electron source arranged in the inside of the case, said electron source having a plurality of control electrodes including a liner cathode extending along the opening of the substrate and an opening extending along the longitudinal direction of the cathode for deriving electrons emitted from the cathode, and supplying the electrons to the X-ray target.2. The X-ray tube as claimed in claim 1 , wherein the electron source includes at least a back plate formed on an inner surface of the case claim 1 , a linear cathode claim 1 , a first control electrode including a mesh shaped ...

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Номер записи: 21
12-09-2013 дата публикации

RADIATION GENERATING APPARATUS AND RADIATION IMAGING APPARATUS

Номер: US20130235975A1
Автор: Aoki Shuji, Nomura Ichiro, Ogura Takao, Sato Yasue, Tamura Miki, Ueda Kazuyuki
Принадлежит: CANON KABUSHIKI KAISHA

There is provided a radiation generating apparatus having a simple structure and capable of shielding unnecessary radiation, cooling a target, reducing the size and weight of the apparatus, and achieving higher reliability, and a radiation imaging apparatus having the same. A transmission type radiation tube is held inside a holding container filled with a cooling medium. The transmission type radiation tube includes an envelope having an aperture, an electron source arranged inside the envelope so as to face the aperture of the envelope, a target unit for generating a radiation responsive to an irradiation with an electron emitted from the electron source, and a shield member for shielding a part of the radiation emitted from the target unit. The cooling medium contacts at least a part of the shield member. 110.-. (canceled)11. A radiation generating apparatus comprising: an envelope having an aperture,', 'an electron source arranged in said envelope,', 'a target unit for generating radiation responsive to irradiation with an electron emitted from said electron source; and', 'a shield member arranged at said aperture so as to surround said target unit for shielding a part of the radiation emitted from said target unit,, 'a transmission-type radiation tube including'}wherein at least a portion of said shield member protrudes to an outside from said envelope.12. The radiation generating apparatus according to claim 11 , further comprising:a holding container for holding inside thereof said transmission-type radiation tube; anda cooling medium filling a space between said holding container and said transmission-type radiation tube,wherein said portion of said shield member protruding to the outside contacts said cooling medium.13. The radiation generating apparatus according to claim 11 , wherein a first shield member arranged at a side of said target unit closer to said electron source, and', 'a second shield member arranged at a side of said target unit opposite to ...

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Номер записи: 22
12-09-2013 дата публикации

COATED X-RAY WINDOW

Номер: US20130235979A1
Автор: Hemberg Oscar, Tuohimaa Tomi
Принадлежит: EXCILLUM AB

An X-ray window including a primary and a secondary window element. In order to evaporate debris by ohmic heating, current flows through the secondary (upstream) window element. Meanwhile, electric charge originating from electron irradiation and/or depositing charged particles is to be drained off the window element. To prevent large debris particles from short-circuiting the window element and changing the desired heating pattern, the current for heating the window element flows through a layer which is insulated from the charge-drain layer. 120-. (canceled)21. An X-ray window for separating an ambient pressure region from a reduced pressure region , the window comprising:a primary X-ray-transparent window element separating the ambient pressure region from an intermediate region;a secondary window element separating the intermediate region from the reduced pressure region, which secondary window element comprises a side facing the reduced pressure region for receiving a contaminant depositing thereon; andheating means for applying an electric voltage between areas of said secondary window element for thereby evaporating contaminant having deposited thereon,wherein said secondary window element comprises:an electrically insulating layer;a charge-drain layer, which faces the reduced pressure region and is connected to a charge sink; anda heater layer, which is electrically insulated from the charge-drain layer, wherein said areas, between which the voltage is applied, are located in the heater layer.22. The X-ray window of claim 21 , further comprising a screen claim 21 , at least partially surrounding said secondary window element on the side facing the reduced pressure region claim 21 , said screen being electrically conducting and connected to a charge sink.23. The X-ray window of claim 22 , wherein the charge-drain layer is completely surrounded by the screen and overlaps by a first distance with the screen.24. The X-ray window of claim 22 , wherein the screen ...

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Номер записи: 23
26-09-2013 дата публикации

X-ray generating apparatus and control method thereof

Номер: US20130251107A1
Автор: Ichiro Nomura, Kazuyuki Ueda, Osamu Tsujii, Takao Ogura
Принадлежит: Canon Inc

An X-ray generating apparatus controls driving of an X-ray tube. The X-ray tube includes an electron source emitting electrons due to application of a voltage, a transmission-type target generating an X-ray due to collision of electrons emitted from the electron source, and a shield member disposed between the electron source and the transmission-type target, the shield member having an opening that electrons emitted from the electron source pass through, and blocking an X-ray that scatters toward the electron source. When generating the X-ray, application of a voltage to the transmission-type target is started, and emission of electrons from the electron source is caused after passage of a predetermined period indicating a time period from starting voltage application until the transmission-type target reaches a predetermined voltage. When stopping X-ray generation, application of the voltage to the transmission-type target is stopped after stopping the emission of electrons from the electron source.

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Номер записи: 24
03-10-2013 дата публикации

Electron gun, x-ray generator and x-ray measurement apparatus

Номер: US20130259197A1
Автор: Masahiro Nonoguchi, Masaru Kuribayashi, Masashi Kageyama
Принадлежит: Rigaku Corp

An electron gun having: a cathode for emitting electrons; a first Wehnelt electrode equipped with a first aperture through which electrons are allowed to pass; and a second Wehnelt electrode that is equipped with a second aperture disposed at a predetermined position with respect to the cathode and the first aperture, and that is furnished at a position closer to the cathode than the first Wehnelt electrode, wherein: the cathode and the second Wehnelt electrode are included within a single assembly constituting a unitary body; and the assembly is detachably attached to the first Wehnelt electrode. Replacement of the cathode can be performed by detaching the cathode unit from the first Wehnelt electrode, and then ejecting the cathode unit out from the Wehnelt cover. The emitter of the cathode can thereby be reliably positioned with respect to the second aperture.

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Номер записи: 25
03-10-2013 дата публикации

Target for x-ray generator, method of manufacturing the same and x-ray generator

Номер: US20130259207A1
Автор: Kazuaki Shimizu, Kazuhiko Omote, Naohisa Osaka
Принадлежит: Rigaku Corp

There is provided a target for an X-ray generator, including: a holder part made of an electrically conductive material and having an opening part; a diamond plate air-tightly joined to the holder part so as to close the opening part; a thin film target provided on a surface of the diamond plate, with its outer peripheral part extending to the holder part to be electrically connected to the holder part, wherein the holder part is configured to be electrically connected to a power supply of the X-ray generator, and the diamond plate is incorporated into the X-ray generator with one side disposed in a vacuum atmosphere where the thin film target is formed, and an opposite side thereto disposed at a side where the diamond plate is brought into thermal contact with a refrigerant and cooled.

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Номер записи: 26
24-10-2013 дата публикации

Apparatus for protecting a radiation window

Номер: US20130279654A1
Автор: Erkki Tapani Puusaari, Esko Juhani Kantonen, Heikki Johannes Sipilä
Принадлежит: Bruker AXS Handheld LLC

A radiation detector assembly and a method for using the same are provided. The radiation detector assembly includes an aperture, a window covering the aperture, the window is configured to permit radiation to pass through, the window is configured to prevent the passage of fluids and particles through the aperture, and a protective device covers the window. The protective device includes a plurality of holes at least partially aligned with the aperture, is configured to permit at least some radiation to pass through the holes, is configured to prevent objects larger than the holes to contact the window and is configured to withstand external forces and prevent those forces from damaging the window.

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Номер записи: 27
31-10-2013 дата публикации

X-Ray Tube with Rotating Anode Aperture

Номер: US20130287176A1
Автор: Rommel Martin, Rothschild Peter
Принадлежит: American Science and Engineering, Inc

An x-ray tube for generating a sweeping x-ray beam. A cathode is disposed within a vacuum enclosure and emits a beam of electrons attracted toward an anode. The anode is adapted for rotation with respect to the vacuum enclosure about an axis of rotation. At least one collimator opening corotates with the anode within the vacuum enclosure, such that a swept x-ray beam is emitted. 1. An X-ray tube comprising:a. a vacuum enclosure;b. a cathode disposed within the vacuum enclosure for emitting a beam of electrons;c. an anode adapted for rotation with respect to the vacuum enclosure about an axis of rotation; andd. at least one collimator opening adapted for co-rotation with respect to the anode within the vacuum enclosure.2. An X-ray tube in accordance with claim 1 , wherein the at least one collimator opening is disposed within the anode.3. An X-ray tube in accordance with claim 1 , wherein the at least one collimator opening is contiguous with a wedge opening in the anode.4. An X-ray tube in accordance with claim 1 , further comprising an external collimator opening disposed outside the vacuum enclosure.5. An X-ray tube in accordance with claim 1 , wherein the at least one collimator opening is disposed above a plane transverse to the axis of rotation containing a locus of focal spots of the beam of electrons. The present application claims priority from U.S. Provisional Patent Application Ser. No. 61/638,555, filed Apr. 26, 2012, and incorporated herein by reference.The present invention relates to sources of X-ray radiation, and, more particularly, to an X-ray tube with a rotating anode.X-ray backscatter imaging relies on scanning an object with a well-collimated beam, typically referred to as “pencil beam”. Several approaches for forming the collimated scanning beam have been suggested. Commonly, beam formation and steering relies on an aperture moving in front of a stationary X-ray tube. In most cases the radiation from an X-ray tube is first collimated into a fan ...

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Номер записи: 28
07-11-2013 дата публикации

X-ray generator, x-ray imaging apparatus, and control methods therefor

Номер: US20130294580A1
Автор: Makoto Sato, Masahiko Okunuki, Osamu Tsujii, Satoshi Shimizu, Takashi Ogura
Принадлежит: Individual

In an X-ray generator which includes an electron beam generating unit which has a plurality of electron emitters and generates an electron beam corresponding to driven electron emitters, and a target electrode which generates X-rays with the irradiation position of an electron beam generated by the electron beam generating unit being an X-ray focus, the X-ray focus shape formed by a set of X-ray focuses on the target electrode is controlled by individually controlling driving of the plurality of electron emitters.

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Номер записи: 29
21-11-2013 дата публикации

ROTARY X-RAY ANODE

Номер: US20130308758A1
Автор: Eiter Johann, Glatz Wolfgang, Knabl Wolfram, Leichtfried Gerhard, Schatte Jürgen, Schönauer Stefan
Принадлежит: Plansee Se

A rotary X-ray anode has a support body and a focal track formed on the support body. The support body and the focal track are produced as a composite by powder metallurgy. The support body is formed from molybdenum or a molybdenum-based alloy and the focal track is formed from tungsten or a tungsten-based alloy. Here, in the conclusively heat-treated rotary X-ray anode, at least one portion of the focal track is located in a non-recrystallized and/or in a partially recrystallized structure. 117-. (canceled)18. A rotary X-ray anode , comprising:a powder-metallurgically produced composite formed of a support body and a focal track on said support body;said support body being formed of molybdenum or a molybdenum-based alloy;said focal track being formed of tungsten or a tungsten-based alloy; andwherein, in the conclusively heat-treated rotary X-ray anode, at least one portion of said focal track is present in a non-recrystallized or a partially recrystallized structure.19. The rotary X-ray anode according to claim 18 , wherein said at least one portion of said focal track has claim 18 , in a direction perpendicular to a focal track plane claim 18 , a preferential texturing in a <111> direction with a texture coefficient TCof ≧4 determinable by way of X-ray diffraction and a preferential texturing in a <001> direction with a texture coefficient TCof ≧5 determinable by way of X-ray diffraction.20. The rotary X-ray anode according to claim 18 , wherein the following relationship for the texture coefficients TCand TCdeterminable by way of X-ray diffraction is satisfied for the portion of the focal track perpendicular to the focal track plane:{'br': None, 'i': TC', '/TC, 'sub': (222)', '(310), '≧5.'}21. The rotary X-ray anode according to claim 18 , wherein the at least one portion of said focal track has a hardness of ≧350 HV 30.22. The rotary X-ray anode according to claim 18 , wherein the at least one portion of said focal track is present in a partially recrystallized ...

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Номер записи: 30
28-11-2013 дата публикации

MAGNETRON POWERED LINEAR ACCELERATOR FOR INTERLEAVED MULTI-ENERGY OPERATION

Номер: US20130315379A1
Автор: Miller Roger Heering, TREAS Paul Dennis
Принадлежит: ACCURAY, INC.

The disclosure relates to systems and methods for interleaving operation of a linear accelerator that use a magnetron as the source of electromagnetic waves for use in accelerating electrons to at least two different ranges of energies. The accelerated electrons can be used to generate x-rays of at least two different energy ranges. In certain embodiments, the accelerated electrons can be used to generate x-rays of at least two different energy ranges. The systems and methods are applicable to traveling wave linear accelerators. 1. A method for generating a high dose rate of electrons of different energies using a traveling wave linear accelerator , the method comprising:coupling a first electromagnetic wave generated by a magnetron into the accelerator;ejecting a first beam of electrons from an electron gun into the accelerator, wherein the first beam of electrons is accelerated by the first electromagnetic wave to a first range of energies and output at a first captured electron beam current;coupling a second electromagnetic wave generated by the magnetron into the accelerator; andejecting a second beam of electrons from the electron gun, wherein the second beam of electrons is accelerated by the second electromagnetic wave to a second range of energies and output at a second captured electron beam current,wherein a magnitude of the second captured electron beam current is different from a magnitude of the first captured electron beam current; andwherein a central value of the second range of energies is different from a central value of the first range of energies.2. The method of claim 1 , wherein the magnitude of the second captured electron beam current differs from the magnitude of the first captured electron beam current by about 160 mA claim 1 , and wherein the central value of the second range of energies differs from the central value of the first range of energies by about 3 MeV.3. The method of claim 1 , wherein the magnitude of the second captured ...

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Номер записи: 31
12-12-2013 дата публикации

FEED-THROUGH AND METHOD FOR INTEGRATING THE FEED-THROUGH IN A HOUSING BY ULTRASONIC WELDING

Номер: US20130330604A1
Автор: Backnaes Linda Johanna, Dahlmann Ulf, Esemann Hauke, Goedeke Dieter, Hartl Helmut, Kroll Frank, Landendinger Martin, Pichler-Wilhelm Sabine, Roters Andreas
Принадлежит: SCHOTT AG

A feed-through, in particular a feed-through which passes through a housing component of a housing, for example a battery housing, such as a battery cell housing. The housing component includes at least one opening through which at least one conductor, for example an essentially pin-shaped conductor, is guided. The pin-shaped conductor is at least partially surrounded by an insulator, for example made of a glass or a glass ceramic material. The at least one conductor connection, for example of the essentially pin-shaped conductor and/or of the housing component with the insulator, which is a glass or a glass ceramic material, is formed, the connection being an ultrasonic welding. 1. A feed-through , comprising:a housing component of a housing, said housing component having at least one opening;an insulator;at least one conductor which is at least partially surrounded by said insulator, said at least one conductor being guided through said at least one opening of said housing component; andan ultrasonic welding connection between said at least one conductor and at least one of said housing component and said insulator.2. The feed-through according to claim 1 , wherein said housing is a battery cell housing.3. The feed-through according to claim 1 , wherein said at least one conductor is an essentially pin-shaped conductor.4. The feed-through according to claim 1 , wherein said insulator is a material which is one of a glass material and a glass ceramic material.5. The feed-through according to claim 3 , wherein said conductor includes a head part and said insulator is positioned between said head part and said housing component.6. The feed-through according to claim 3 , wherein said conductor includes a metal.7. The feed-through according to claim 6 , wherein said metal is one of copper claim 6 , copper silicon carbide (CuSiC) claim 6 , a copper alloy claim 6 , aluminum claim 6 , aluminum silicon carbide (AlSiC) claim 6 , an aluminum alloy claim 6 , nickel-iron (NiFe ...

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Номер записи: 32
26-12-2013 дата публикации

Triboelectric x-ray source

Номер: US20130343526A1
Автор: Carlos Camara, Jonathan Hird, Seth J. Putterman
Принадлежит: UNIVERSITY OF CALIFORNIA

An x-ray source for generating x-rays with at least one narrow energy band includes an enclosing vessel, a first contact arranged with a first contact surface in the enclosing vessel, a second contact arranged with a second contact surface in the enclosing vessel, and an actuator assembly operatively connected to at least one of the first and second contacts. The actuator assembly is structured to cause the first contact surface and the second contact surface to repeatedly come into contact, and separate after making contact, while in operation. The first contact surface is a surface of a first triboelectric material and the second contact surface is a surface of a second triboelectric material, the surface of the first triboelectric material having a negative triboelectric potential relative to the surface of the second triboelectric material. The second contact includes a material that includes an atomic element in its composition that has an excited quantum energy state that can be excited by electrons traveling from the first contact surface to the second contact surface such that the atomic element emits x-rays having an energy within the at least one narrow energy band upon transition from the excited state into a lower energy state. The enclosing vessel is structured to provide control of an atmospheric environment to which the first and second contact surfaces are exposed.

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Номер записи: 33
30-01-2014 дата публикации

X-RAY GENERATOR AND X-RAY IMAGING APPARATUS INCLUDING THE SAME

Номер: US20140029725A1
Автор: Aoki Shuji, Nomura Ichiro, Ogura Takao, Sato Yasue, Tamura Miki, Ueda Kazuyuki, Yamazaki Koji, Yanagisawa Yoshihiro
Принадлежит: CANON KABUSHIKI KAISHA

Provided is an X-ray generator comprising an X-ray tube including a cylindrical body; an electron source in the body; a target at an end of the X-ray tube facing the electron source, the target generating X-rays by irradiation with electrons; a container in which the X-ray tube is arranged; insulating liquid filled between the X-ray tube and the container; and 1. An X-ray generator comprising:an X-ray tube including a cylindrical body;an electron source in the body;a target at an end of the body facing the electron source, the target generating X-rays by irradiation with electrons;a container in which the X-ray tube is arranged;insulating liquid filled between the X-ray tube and the container; anda holding member holding the body in the container, with a channel for the insulating liquid around the X-ray tube,wherein the distance between the holding member and the end face at the end of the body in the direction in which the electron source and the target face is twice or more as large as the minimum width of the channel that is in contact with the outer surface of the X-ray tube at the end face side with respect to the holding member.2. The X-ray generator according to claim 1 , wherein the X-ray tube is held by fitting the body and the holding member together.3. The X-ray generator according to claim 1 , wherein both the holding member and the container have thermal conductivity and are in contact with each other.4. The X-ray generator according to claim 1 , wherein the holding member is part of the container.5. The X-ray generator according to claim 4 , wherein the part of the container is a protruding portion at part of the inner surface of the container.6. The X-ray generator according to claim 1 , wherein the container has thermal conductivity.7. The X-ray generator according to claim 6 , wherein the container includes a cooler.8. The X-ray generator according to claim 1 , wherein the holding member has electrical conductivity and is grounded.9. The X-ray ...

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Номер записи: 34
30-01-2014 дата публикации

X-RAY GENERATING APPARATUS FOR PARACENTESIS

Номер: US20140029727A1
Автор: Ono Takeo
Принадлежит:

An X-ray generating apparatus for paracentesis of the present invention has an electron emitting portion arranged in an envelope, and a target that emits X-ray by irradiation with electrons that are emitted from the electron emitting portion, and irradiates an affected part in a living body with the X-ray which have been emitted from the target. The apparatus can adjust a region to be irradiated with X-ray, and thereby enables the affected part to be more effectively and efficiently treated with X-ray. 1. An X-ray generating apparatus for paracentesis , which has an electron emitting portion arranged in an envelope , and a target that emits X-ray by irradiation with electrons that are emitted from the electron emitting portion , and irradiates a specific site with the X-ray which have been emitted from the target , comprisinga front shield which is arranged so as to protrude to the outside from the envelope, and has an opening that forms a passage of X-ray which irradiate the specific site, wherein the front shield can adjust a region to be irradiated with the X-ray on the specific site.2. The apparatus according to claim 1 , whereinthe specific site is an affected part in a living body.3. The apparatus according to claim 1 , whereinthe target is a transmission type target which constitutes a part of the envelope;the front shield is provided so that the opening continues to the target;a rear shield is arranged on the opposite side of the front shield to the target; andthe rear shield has an electron incidence hole which continues to the target and passes the electron therethrough.4. The apparatus according to claim 1 , whereinthe envelope and the front shield are detachably connected; andthe front shield can be exchanged with another front shield that has an opening of which the diameter, shape or direction is different, according to the region to be irradiated with the X-ray.5. The apparatus according to claim 1 , whereinthe front shield comprises an iris mechanism ...

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Номер записи: 35
20-02-2014 дата публикации

Radiation device installation housing and x-ray generator

Номер: US20140050305A1
Автор: Fuhua DING, Wanlong Wu, Xilei Luo, Zhimin Zheng, Zhiqiang Chen, Ziran Zhao
Принадлежит: Nuctech Co Ltd

Embodiments include an X-ray generator including a radiation device installation housing and an X-ray generator. In various embodiments, the radiation device installation housing comprises a housing body, a flange fixedly provided on an inner wall of the housing body and shaped in circular and a compensation device fixedly or movably connected with the flange in a liquid tight manner; a liquid receiving cavity for receiving an insulating liquid formed between one side of two opposite sides of the compensation device and the inner wall of the housing body as well as the flange; a compensation device moving space formed between another side of the two opposite sides of the compensation device opposed to the inner wall of the housing body and an inner wall of the flange.

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Номер записи: 36
06-03-2014 дата публикации

RADIATION GENERATING TUBE AND RADIATION GENERATING APPARATUS INCLUDING RADIATION GENERATION TUBE

Номер: US20140064447A1
Автор: Nomura Ichiro, Ogura Takao, Shiozawa Takashi, Ueda Kazuyuki
Принадлежит: CANON KABUSHIKI KAISHA

A radiation generating apparatus includes a radiation generation tube including an electron emitting source having an electron emitting member, a transmission type target, a tubular backward shielding member having an electron passing hole facing the target layer at one end, located at the electron emitting source side of the transmission type target, and connected to the periphery of the base member. The radiation generating apparatus further includes a collimator having an opening for defining an angle for extracting the radiation at the opposite side of the electron emitting source side of the transmission type target, and an adjusting device connected to the collimator, and configured to vary an opening diameter of the opening, wherein the target layer has a portion separated from a connection portion of the base member and the backward shielding member at the periphery. 1. A radiation generating apparatus comprising: an electron emitting source having an electron emitting member,', 'a target having a target layer receiving an electron beam emitted from the electron emitting member and generating radiation, and a base member supporting the target layer and transmitting the radiation, in which the electron emitting source and the target layer are disposed to face each other, and', 'a tubular backward shielding member having an electron passing hole facing the target layer at one end, located at the electron emitting source side of the target, and connected to the periphery of the base member;, 'a radiation generation tube includinga collimator having an opening for defining an angle for extracting the radiation at the opposite side of the electron emitting source side of the target; andan adjusting device connected to the collimator, and configured to vary an opening diameter of the opening,wherein the target layer has a portion separated from a connection portion of the base member and the backward shielding member at the periphery.2. The radiation generating ...

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Номер записи: 37
20-03-2014 дата публикации

Photo Emitter X-Ray Source Array (PeXSA)

Номер: US20140079188A1
Автор: Jason Ryan, Juan R. Maldonado, Lambertus Hesselink, Piero Pianetta, R. Fabian W. Pease, Yao-Te Cheng
Принадлежит: Leland Stanford Junior University

A photo-emitter x-ray source is provided that includes a photocathode electron source, a laser light source, where the laser light source illuminates the photocathode electron source to emit electrons, and an X-ray target, where the emitted electrons are focused on the X-ray target, where the X-ray target emits X-rays. The photocathode electron source can include alkali halides (such as CsBr and CsI), semiconductors (such as GaAs, InP), and theses materials modified with rare Earth element (such as Eu) doping, electron beam bombardment, and X-ray irradiation, and has a form factor that includes planar, patterned, of optically patterned. The X-ray target includes a material such as tungsten, copper, rhodium or molybdenum. The laser light source is pulsed or steered according to light modulators that can include acousto-optics, mode-locking, micro-mirror array, and liquid crystals, and includes a nano-aperture or nano-particle arrays, where the nano-aperture is a C-aperture or a circular aperture.

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Номер записи: 38
03-04-2014 дата публикации

RADIATION GENERATING UNIT AND RADIOGRAPHY SYSTEM

Номер: US20140093042A1
Автор: Suzuki Yoshio, Tsunoda Koichi
Принадлежит: CANON KABUSHIKI KAISHA

A radiation generating unit includes a radiation tube that has a vacuum chamber that has a cathode and anode at both ends of an insulating tubular member and is arranged inside a storage container filled with an insulating liquid in a state in which the radiation tube is arranged inside an insulating outer casing tube with a gap from a surrounding, wherein walls which partition the gap between the radiation tube and outer casing tube are provided while allowing a flow of the insulating liquid between the cathode side and anode side of the radiation tube and leaving in the gap a flow path which does not linearly continue to the cathode side and anode side. 1. A radiation generating unit comprising:a radiation tube configured to include a vacuum chamber having a cathode and an anode at both ends of an insulating tubular member;an insulating outer casing tube in which the radiation tube is arranged with a gap from a surrounding; anda driving unit configured to control an operation of the radiation tube, whereinthe radiation tube, the insulating outer casing tube, and the driving unit are arranged inside a storage container, andwherein an extra space inside the storage container is filled with an insulating liquid, andwherein a wall configured to partition the gap allows a flow of the insulating liquid between a cathode side and an anode side of the vacuum chamber and forms a flow path configured not to linearly continue to the cathode side and the anode side of the vacuum chamber.2. The radiation generating unit according to claim 1 , wherein the wall has a height reaching an inner surface of the outer casing tube from an outer surface of the tubular member claim 1 , andwherein a plurality of the walls is aligned at intervals in a circumferential direction of the tubular member, andwherein a plurality of columns that are aligned in the circumferential direction of the tubular member is provided at intervals in an opposing direction of the cathode and the anode, ...

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Номер записи: 39
03-04-2014 дата публикации

X-ray Tube

Номер: US20140093047A1
Автор: Deguchi Kiyoyuki, FUJITA Toru, Kogure Yuuichi, Marushima Yoshihisa, MATSUMOTO Akira, Nakamura Kazuhito, Nakamura Tatsuya, OKADA Tomoyuki
Принадлежит:

An X-ray tube includes a radiopaque substrate including a window portion, an X-ray transmission window closing the window portion, an X-ray target provided at the window portion from an inner surface side of the substrate, a highly-evacuated container portion attached to the inner surface of the substrate, a cathode, a first control electrode and a second control electrode provided inside the container portion. A shielding electrode is provided at the inner surface of the substrate so as to surround the window portion. Electrons collide with the X-ray target to generate X-rays. Electrons reflected on the X-ray target between the shielding electrodes are absorbed by the shielding electrodes, so an inner surface of the container portion is not charged. The electron emission from the cathode is not affected by the reflected electrons, so a change in target current is small, and thus X-rays of substantially constant intensity can be radiated. 1. An X-ray tube comprising:a radiopaque substrate including a slit-like window portion;an X-ray transmission window provided from a side of an outer surface of the substrate so as to close the window portion;an X-ray target provided at the window portion from a side of an inner surface of the substrate;a container portion attached to the inner surface of the substrate, an inside of the container portion being in a high vacuum state;an electron source provided to the inside of the container portion and arranged to supply electrons to the X-ray target;a first control electrode positioned between the electron source and the X-ray target inside the container portion, the first control electrode being arranged to draw electrons from the electron source; anda second control electrode positioned inside the container portion and between the first control electrode and the X-ray target, the second control electrode defining an irradiation area of an electron beam;wherein a shielding electrode is provided at the inner surface of the ...

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Номер записи: 40
02-01-2020 дата публикации

COMPUTER TOMOGRAPH

Номер: US20200000423A1
Автор: MOHAMMADI ZAHRA
Принадлежит:

A computer tomograph () for mammographic x-ray imaging includes a MBFEX tube () and a flat-bed x-ray detector (). Cathodes () are arranged in a fixed manner in rows in the MBFEX tube (), the cathodes () being provided for the field emission of electrons. Geometry, radiation density and wavelength range of an x-ray beam (b) can be set. The MBFEX tube () is movable parallel (z) to the flat-bed x-ray detector (). The flat bed x-ray detector () includes a moveable x-ray screen (), the opening of which can be set. Using the x-ray screen (), an imaging area (A) on the detector surface (D) of the flat-bed x-ray detector () can be selected and moved. Compared to conventional computer tomographs having rotating x-ray components, the computer tomograph () has a lighter and more compact design, with which a particularly small focal spot size is achieved. 1. A computer tomograph for mammographic x-ray imaging , comprising: a MBFEX tube and a flat-bed x-ray detector , wherein a plurality of cathodes is arranged in a fixed manner in rows in the MBFEX tube , the cathodes being provided for field emission of electrons , and geometry , radiation density and wavelength range of an x-ray beam (b) are set , the MBFEX tube are movable parallel to the flat-bed x-ray detector , the flat bed x-ray detector comprising a moveable x-ray screen , the opening of the moveable x-ray screen is set , and , using the x-ray screen , an imaging area on a detector surface of the flat-bed x-ray detector is selectable and moveable.2. The computer tomograph according to claim 1 , wherein the cathodes contain carbon nanotubes.3. The computer tomograph according to claim 1 , wherein the cathodes contain nanorods for emitting electrons claim 1 , which contain a substance selected from a group of substances consisting of metal oxides claim 1 , metal sulfides claim 1 , nitrides claim 1 , carbides and silicon.4. The computer tomograph according to claim 1 , wherein the MBFEX tube has a grid device arranged in a ...

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Номер записи: 41
07-01-2016 дата публикации

APPARATUS FOR THE GENERATION OF LOW-ENERGY X-RAYS

Номер: US20160000949A1
Автор: MITKO Sergey, UDALOV Yuri
Принадлежит:

An X-ray source for producing soft X-rays, the X-ray source comprising: a cathode having an electron-emitting structure supported by a support structure, the electron-emitting structure being at least partially transparent to X-rays within a region bounded by the support structure; an anode having an X-ray emitting surface parallel to the electron-emitting structure of the cathode; and an electrically insulating spacer arranged between the anode and the cathode; wherein the electron-emitting structure of the cathode and the X-ray emitting surface of the anode are arranged such that, in use, the electron-emitting structure is operable to bombard the anode with electrons, causing X-rays to be emitted from the X-ray emitting surface and to pass through the cathode; and wherein the insulating spacer is arranged between the anode and the support structure of the cathode and projects beyond the support structure, across part of the anode, into the said region. 1. An X-ray source for producing soft X-rays , the X-ray source comprising:a cathode having an electron-emitting structure supported by a support structure, the electron-emitting structure being at least partially transparent to X-rays within a region bounded by the support structure;an anode having an X-ray emitting surface parallel to the electron-emitting structure of the cathode; andan electrically insulating spacer arranged between the anode and the cathode;wherein the electron-emitting structure of the cathode and the X-ray emitting surface of the anode are arranged such that, in use, the electron-emitting structure is operable to bombard the anode with electrons, causing X-rays to be emitted from the X-ray emitting surface and to pass through the cathode; andwherein the insulating spacer is arranged between the anode and the support structure of the cathode and projects beyond the support structure, across part of the anode, into the said region.251-. (canceled)52. A method of sterilizing an article , the ...

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Номер записи: 42
01-01-2015 дата публикации

X-ray imaging apparatus and method of operating the same

Номер: US20150003586A1
Автор: Byoung-hoon KOH, Woo-sup Han
Принадлежит: SAMSUNG ELECTRONICS CO LTD

An X-ray imaging apparatus and a method of operating the X-ray imaging method are provided. The X-ray imaging apparatus includes a first panel configured to contact an object; an X-ray generator configured to maintain a uniform distance with the first panel and configured to generate an X-ray; a second panel facing the first panel and configured to contact the object; and an X-ray detector configured to detect the X-ray transmitted to the object.

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Номер записи: 43
07-01-2016 дата публикации

PHOTOCATHODE COUPLED X-RAY TUBE

Номер: US20160005565A1
Автор: KANG Jun Tae, SONG Yoon-Ho
Принадлежит:

Provided is an X-ray tube including an anode, a target on the anode, a cathode disposed separate from the target and the anode and comprising an emitter providing an electron beam to the target, and a side wall disposed between the cathode and the anode, and surrounding the target and the emitter. The side wall reflects a light generated by collision of the electron beam with the target to the cathode, and electrically insulates the cathode from the anode. 1. An X-ray tube , comprising:an anode;a target on the anode;a cathode disposed separate from the target and the anode and comprising an emitter providing an electron beam to the target; anda side wall disposed between the cathode and the anode, and surrounding the target and the emitter,wherein the side wall reflects a light generated by collision of the electron beam with the target to the cathode, and electrically insulates the cathode from the anode.2. The X-ray tube of claim 1 , wherein the side wall comprises an oxide.3. The X-ray tube of claim 2 , wherein the oxide comprises aluminum oxide.4. The X-ray tube of claim 2 , wherein the oxide comprises silicon oxide.5. The X-ray tube of claim 1 , further comprising reflection blocks protruding from an inner wall of the side wall and reflecting the light generated at the target to the emitter.6. The X-ray tube of claim 5 , wherein the reflection blocks comprise first reflection surfaces having slopes increased against the side wall along a direction from the anode to the cathode.7. The X-ray tube of claim 5 , wherein the reflection blocks have a scale shape.8. The X-ray tube of claim 5 , wherein the reflection blocks comprise a metal oxide or an insulating oxide.9. The X-ray tube of claim 1 , further comprising a reflector focusing the light on the emitter from an inner wall of the side wall.10. The X-ray tube of claim 9 , wherein the reflector comprises a second reflection surface of which a radius is decreased along a direction from the anode to the cathode.11. ...

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Номер записи: 44
04-01-2018 дата публикации

MULTILAYER X-RAY SOURCE TARGET

Номер: US20180005794A1
Автор: Dalakos George Theodore, LIANG Yong, Raber Thomas Robert, Robinson Vance Scott
Принадлежит:

The present disclosure relates to the production and use of a multi-layer X-ray source target. In certain implementations, layers of X-ray generating material may be interleaved with thermally conductive layers. To prevent delamination of the layers, various mechanical, chemical, and structural approaches are related, including approaches for reducing the internal stress associated with the deposited layers and for increasing binding strength between layers. 1. An X-ray source , comprising:an emitter configured to emit an electron beam; and at least one X-ray generating layer comprising X-ray generating material, wherein the X-ray generating material within each X-ray generating layer varies in density within the respective X-ray generating layer; and', 'at least one thermally-conductive layer in thermal communication with each X-ray generating layer., 'a target configured to generate X-rays when impacted by the electron beam, the target comprising2. The X-ray source of claim 1 , further comprising a thermally-conductive substrate on which a bottommost X-ray generating layer is formed.3. The X-ray source of claim 1 , wherein the X-ray generating material comprises one or more of tungsten claim 1 , molybdenum claim 1 , titanium-zirconium-molybdenum alloy (TZM) claim 1 , tungsten-rhenium alloy claim 1 , copper-tungsten alloy claim 1 , chromium claim 1 , iron claim 1 , cobalt claim 1 , copper claim 1 , silver.4. The X-ray source of claim 1 , wherein the thermally-conductive layers comprise one or more of highly ordered pyrolytic graphite (HOPG) claim 1 , diamond claim 1 , beryllium oxide claim 1 , silicon carbide claim 1 , copper-molybdenum claim 1 , copper claim 1 , tungsten-copper alloy claim 1 , or silver-diamond.5. The X-ray source of claim 1 , wherein each X-ray generating layer varies in density so as to have greater density in earlier deposited regions than in at least a portion of the later deposited regions.6. The X-ray source of claim 1 , further comprising ...

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Номер записи: 45
04-01-2018 дата публикации

MULTI-LAYER X-RAY SOURCE TARGET

Номер: US20180005795A1
Автор: Dalakos George Theodore, LIANG Yong, Raber Thomas Robert, Robinson Vance Scott, Wild Christoph
Принадлежит:

The present disclosure relates to the production and use of a multi-layer X-ray source target. In certain implementations, layers of X-ray generating material may be interleaved with thermally conductive layers. To prevent delamination of the layers, various mechanical, chemical, and structural approaches are related, including approaches for reducing the internal stress associated with the deposited layers and for increasing binding strength between layers. 1. An X-ray source , comprising:an emitter configured to emit an electron beam; and a thermally-conductive substrate;', 'two or more X-ray generating layers, wherein X-ray generating layers are separated by at least one intervening thermally-conductive layer; and', 'one or more interface layers formed between a respective X-ray generating layer and one or both of the first thermally conductive layer or a respective intervening thermally-conductive layer., 'a target configured to generate X-rays when impacted by the electron beam, the target comprising2. The X-ray source of claim 1 , wherein one or both of the thermally-conductive substrate or the intervening thermally-conductive layers comprise diamond.3. The X-ray source of claim 1 , wherein the roughness of the thermally conductive layers is in the range of about 0.8 μm to about 4.0 μm.4. The X-ray source of claim 1 , wherein the roughness at the X-ray generating layers is in the range of about 0.3 μm to about 1.0 μm.5. The X-ray source of claim 1 , wherein the X-ray generating layer comprises one or more of tungsten claim 1 , molybdenum claim 1 , titanium-zirconium-molybdenum alloy (TZM) claim 1 , tungsten-rhenium alloy claim 1 , rhodium claim 1 , copper-tungsten alloy claim 1 , chromium claim 1 , iron claim 1 , cobalt claim 1 , copper claim 1 , silver.6. The X-ray source of claim 1 , wherein at least one interface layer comprises tungsten carbide.7. An X-ray source claim 1 , comprising:an emitter configured to emit an electron beam; and a first thermally- ...

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Номер записи: 46
14-01-2016 дата публикации

X-RAY DIAGNOSTIC APPARATUS

Номер: US20160007949A1
Автор: Kobayashi Yoshimasa, OHASHI Shumpei
Принадлежит:

An X-ray diagnostic apparatus according to an embodiment includes an X-ray tube holding device, an X-ray detector, a rotator, an arm, and a tubular body. The X-ray tube holding device generates X-rays. The X-ray detector detects the X-rays. The rotator holds the X-ray tube holding device so as to be rotatable about a first rotation axis obtained by setting an irradiation direction of the X-rays as an axis. The arm holds the rotator and the X-ray detector and is rotatable about a second rotation axis different from the first rotation axis. The tubular body connects the X-ray tube holding device and a device away from the arm. The arm holds the rotator so as to be rotatable about the first rotation axis in a direction in which torsion of the tubular body is reduced. 1. An X-ray diagnostic apparatus comprising:an X-ray tube holding device configured to generate X-rays;an X-ray detector configured to detect the X-rays;a rotator configured to hold the X-ray tube holding device so as to be rotatable about a first rotation axis obtained by setting an irradiation direction of the X-rays as an axis;an arm configured to hold the rotator and the X-ray detector and rotatable about a second rotation axis different from the first rotation axis; anda tubular body configured to connect the X-ray tube holding device and a device away from the arm,wherein the arm holds the rotator so as to be rotatable about the first rotation axis in a direction in which torsion of the tubular body is reduced.2. The apparatus of claim 1 , further comprising:a control circuitry configured to control to rotate the rotator about the first rotation axis in the direction in which the torsion of the tubular body caused by the rotation of the arm is reduced, in accordance with the rotation of the arm about the second rotation axis.3. The apparatus of claim 2 , further comprising:a holding mechanism configured to hold the arm so as to be rotatable about the second rotation axis,wherein the tubular body ...

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Номер записи: 47
07-01-2021 дата публикации

X-ray source and x-ray imaging apparatus

Номер: US20210007210A1
Автор: Gereon Vogtmeier, Roger Steadman Booker
Принадлежит: Koninklijke Philips NV

An X-ray source (10) for emitting an X-ray beam (101) is proposed. The X- ray source (10) comprises an anode (12) and an emitter arrangement (14) comprising a cathode (16) for emitting an electron beam (15) towards the anode (12) and an electron optics (18) for focusing the electron beam (15) at a focal spot (20) on the anode (12). The X-ray source (10) further comprises a controller (22) configured to determine a switching action of the emitter arrangement (14) and to actuate the emitter arrangement (14) to perform the switching action, the switching action being associated with a change of at least one of a position of the focal spot (20) on the anode (12), a size of the focal spot (20), and a shape of the focal spot (20). The controller (22) is further configured to predict before the switching action is performed, based on the determined switching action, the size and the shape of the focal spot (20) expected after the switching action. Further, the controller (22) is configured to actuate the electron optics (18) to compensate for a change of the size and the shape of the focal spot (20) induced by the switching action

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Номер записи: 48
04-01-2018 дата публикации

X-RAY GENERATOR AND X-RAY ANALYZER

Номер: US20180007768A1
Автор: MARUI Takao
Принадлежит: SHIMADZU CORPORATION

A heat pump is used to cool an X-ray tube, and waste heat from the heat pump is used to heat a separate part (a spectroscope, for example). As a result, the X-ray tube can be cooled using the heat pump, and the waste heat from the heat pump resulting from the cooling thereof can be used to heat a separate part. In this way, by heating a separate part using the waste heat from the heat pump, it is possible to effectively utilize heat generated from the X-ray tube so as to reduce the power consumption. 1. An X-ray generator for generator X-rays , comprising:an X-ray tube; anda heat pump being used to cool the X-ray tube, waste heat from the heat pump being used to heat a separate part.2. An X-ray analyzer for analyzing a sample using X-rays , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the X-ray generator according to , wherein the X-rays generated by the X-ray generator are used to analyze the sample.'}3. The X-ray analyzer according to claim 2 , wherein the separate part comprises a spectroscope for splitting light from a sample;wherein waste heat from the heat pump is used to heat the spectroscope.4. The X-ray analyzer according to claim 3 , wherein the waste heat from the heat pump is used to heat another separate part.5. The X-ray analyzer according to claim 4 , wherein the other separate part comprises the sample claim 4 , wherein waste heat from the heat pump is used to heat the sample. The present invention relates to an X-ray generator for generating X-rays with an X-ray tube; and an X-ray analyzer.An X-ray tube used in an X-ray generator is provided with a filament and a target disposed with space between one another, for example. By applying a high voltage between the filament and the target, it is possible to cause thermal electrons discharged from the filament to collide with the target so as to generate X-rays from the target.In such an X-ray generator, the target generates heat in step with the generation of X-rays, so a mechanism ...

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Номер записи: 49
02-01-2020 дата публикации

COOLING DEVICE FOR X-RAY GENERATORS

Номер: US20200008287A1
Автор: Heuft Bernhard, Polster Wolfgang
Принадлежит:

A cooling device for x-ray tubes in x-ray generators, comprising a housing with a central receiving device for receiving an x-ray tube with an inlet opening for supplying a gaseous coolant, an outlet opening for discharging the gaseous coolant, and a gas-conducting channel which extends between the inlet opening and the outlet opening. The gas-conducting channel is designed to conduct the gaseous coolant directly by the high-voltage x-ray tube housing during operation. The gas-conducting channel additionally extends in a helical manner about the x-ray tubes such that the electric potential applied to the x-ray tubes drops to zero potential along the gas-conducting channel. 1. A cooling device for x-ray tubes in x-ray generators comprising a housing witha central receiving device for receiving an x-ray tube,an inlet opening for supplying a gaseous cooling medium,an outlet opening for discharging the gaseous cooling medium anda gas-conducting channel, which extends between the inlet opening and the outlet opening,wherein the gas-conducting channel is designed such that it guides the gaseous cooling medium directly past the high-voltage housing of the x-ray tube during operation, andwherein the gas-conducting channel extends spirally around the x-ray tube, with the result that the electric potential applied to the x-ray tube drops to zero potential along the gas-conducting channel.2. The cooling device for x-ray generators according to claim 1 , wherein the housing of the cooling device consists of electrically insulating material claim 1 , preferably of thermoplastic such as polycarbonate claim 1 , PVC or polyolefins claim 1 , of Plexiglas or of polyoxymethylene.3. The cooling device for x-ray generators according to claim 1 , wherein the gas-conducting channel is formed of at least two spirally arranged inner walls of the housing of the cooling device.4. The cooling device for x-ray generators according to claim 1 , wherein the thickness of the inner walls is chosen ...

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Номер записи: 50
11-01-2018 дата публикации

Dynamically Adjustable Focal Spot

Номер: US20180012724A1
Автор: Louis P. Wainwright, Martin Rommel
Принадлежит: American Science and Engineering Inc

Methods for maintaining a specified beam profile of an x-ray beam extracted from an x-ray target over a large range of extraction angles relative to the target. A beam of electrons is generated and directed toward a target at an angle of incidence with respect to the target, with the beam of electrons forming a focal spot corresponding to the cross-section of the electron beam. At least one of a size, shape, and orientation of the electron beam cross-section is dynamically varied as the extraction angle is varied, and the extracted x-ray beam is collimated. Dynamically varying the size, shape or orientation of the electron beam cross-section may be performed using focusing and stigmator coils.

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Номер записи: 51
10-01-2019 дата публикации

CHARGED PARTICLE DEVICE, STRUCTURE MANUFACTURING METHOD, AND STRUCTURE MANUFACTURING SYSTEM

Номер: US20190013174A1
Автор: DENYSOV Andriy, ENDO Takeshi, FLETCHER STEPHEN, SUZUKI Shohei, Watanabe Takashi, Yamada Atsushi
Принадлежит:

A charged particle device includes an electron emitting part for emitting electrons, an electron irradiated part configured to be irradiated with the electrons emitted from the electron emitting part, a container part configured to evacuate an interior thereof and contain the electron irradiated part in the interior thereof, an electric wire containing part configured to be inserted from an outside of the container part via an insertion part provided in the container part to contain an electric wire through which electricity is conducted to the electron irradiated part contained in the container part, and an insertion-part-side protrusion part configured to surround the electric wire containing part and protrude from a vicinity of the insertion part on an inner wall of the container part to an interior of the container part. 1. A charged particle device comprising:an electron emitting part configured to emit electrons;an electron irradiated part configured to be irradiated with the electrons emitted from the electron emitting part;a container part configured to evacuate an interior thereof and contain the electron irradiated part in the interior thereof;an electric wire containing part configured to be inserted from an outside of the container part via an insertion part provided in the container part to contain an electric wire through which electricity is conducted to the electron irradiated part contained in the container part; andan insertion-part-side protrusion part configured to surround the electric wire containing part and protrude from a vicinity of the insertion part on an inner wall of the container part to an interior of the container part.2. The charged particle device according to claim 1 , whereina cross section of a tip end part of the insertion-part-side protrusion part is formed in a spherical shape.3. The charged particle device according to claim 1 , further comprising a rotation member configured to cause the electron irradiated part to rotate ...

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Номер записи: 52
09-01-2020 дата публикации

Liquid Crystal Polymer for Mounting X-ray Window

Номер: US20200013578A1
Автор: Jared SOMMER, Jonathan Abbott
Принадлежит: Moxtek Inc

An x-ray window can include an adhesive layer sandwiched between and providing a hermetic seal between a thin film and a housing. The adhesive layer can include liquid crystal polymer. The liquid crystal polymer can be opaque, gas-tight, made of low atomic number elements, able to withstand high temperature, low outgassing, low leakage, able to relieve stress in the x-ray window thin film, capable of bonding to many different materials, or combinations thereof.

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Номер записи: 53
15-01-2015 дата публикации

Soft X-Ray Curtain Tube

Номер: US20150016590A1
Автор: Hansen William, Kamtekar Sanjay, Parker Todd S.
Принадлежит: Moxtek, Inc.

An elongated x-ray tube that can emit a linear curtain of x-rays along its length. Methods of using an elongated curtain of x-rays. 1. An x-ray tube comprising:a. an elongated, tubular, evacuated enclosure including an electrically conductive anode and a solid x-ray window;b. an elongated, linear filament disposed in the enclosure and extending along a longitudinal axis of the enclosure, from one end of the enclosure to an opposite end of the enclosure, and configured to emit electrons;c. the filament being electrically isolated from the anode;d. an elongated annular gap between the filament and the evacuated enclosure;e. a target material disposed on an inner surface of the anode, an inner surface of the window, or both;f. the target material configured to emit x-rays in response to impinging electrons from the filament; andg. the window configured to substantially allow the x-rays to pass therethrough.2. The x-ray tube of claim 1 , further comprising:a. an electrically-conductive, elongated focusing-structure extending in parallel with the filament from one end of the enclosure to an opposite end of the enclosure; andb. the focusing-structure disposed in a location and configured to direct electrons from the filament towards the window.3. The x-ray tube of claim 2 , wherein:a. the filament is disposed between the focusing-structure and the window;b. the focusing-structure is capable of substantially blocking electrons from impinging on the anode on an opposite side of the anode from the window.4. The x-ray tube of claim 2 , wherein:a. the target material is disposed on the window; andb. non-window portions of the enclosure are substantially free of the target material.5. The x-ray tube of claim 1 , wherein the anode has a thickness and a material configured to substantially block soft x-rays from passing therethrough and the window has a thickness and a material configured to allow soft x-rays to pass therethrough with minimal attenuation.617. The x-ray tube of ...

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Номер записи: 54
15-01-2015 дата публикации

Radiation window with support structure

Номер: US20150016593A1
Автор: Erik Bard, Mark Larson, Michael Lines
Принадлежит: Individual

An improved radiation window comprises a film permeable to radiation disposed on a support structure. The support structure comprises a primary transmissive area comprising a plurality of support members defining a plurality of apertures for radiation to pass through; a flange disposed around the periphery of the primary transmissive area having generally greater mechanical rigidity than the primary transmissive area; and a transition region disposed between, and contiguous with, the primary transmissive area and the flange; the transition region having generally greater mechanical rigidity than the primary transmissive area and generally lesser mechanical rigidity than the flange, thereby providing an intermediate rigidity transition between the dissimilar rigidities of the primary transmissive area and the flange. A radiation detection system comprises a sensor configured to detect radiation, disposed behind such an improved radiation window.

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Номер записи: 55
14-01-2021 дата публикации

X-RAY GENERATOR AND X-RAY UTILIZATION SYSTEM

Номер: US20210014956A1
Автор: Ishii Atsushi, TANIZAWA Tomoaki
Принадлежит: HAMAMATSU PHOTONICS K.K.

An X-ray generator includes an X-ray tube, a blower fan having a motor and configured to provide the X-ray tube with air, a motor control unit configured to control a rotation speed of the motor, and a casing to which the X-ray tube and the blower fan are attached. The motor control unit shifts the rotation speed of the motor from a resonance frequency of a structure including the X-ray tube and the casing. According to this configuration, a resonance phenomenon caused by vibration generated by the motor is avoided. Therefore, influences of vibration on the X-ray tube are reduced. As a result, the X-ray generator can be operated in a highly stable manner. 1. An X-ray generator comprising:an X-ray tube;a heat medium providing unit having a motor and configured to provide the X-ray tube with a heat medium;a motor control unit configured to control a rotation speed of the motor; anda device casing to which the X-ray tube and the heat medium providing unit are attached,wherein the motor control unit is configured to shift the rotation speed of the motor from a resonance frequency of a structure including the X-ray tube and the device casing.2. The X-ray generator according to further comprising:an X-ray control unit configured to control an intensity of X-rays output from the X-ray tube,wherein the motor control unit is configured to control the rotation speed of the motor on the basis of the intensity of X-rays.3. The X-ray generator according to claim 2 ,wherein the motor control unit is configured to increase the rotation speed of the motor as the intensity of X-rays increases, and decrease the rotation speed of the motor as the intensity of X-rays decreases.4. The X-ray generator according to claim 1 ,wherein the heat medium providing unit includes a fan rotated by the motor and provides the X-ray tube with gas serving as the heat medium by using the fan.5. The X-ray generator according to further comprising:an accommodation portion that accommodates the X-ray tube ...

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Номер записи: 56
19-01-2017 дата публикации

MAGNETIC SHIELDING OF AN X-RAY EMITTER

Номер: US20170018393A1
Автор: Kuth Rainer, Pickert Nils
Принадлежит: Siemens Healthcare GmbH

An x-ray emitter includes a housing. In an embodiment, the housing includes a diamagnetic or paramagnetic housing material and a plurality of ferromagnetic particles. In an embodiment, the ferromagnetic particles are aligned substantially along closed paths. A medical device includes an embodiment of the x-ray emitter. A method is further for producing an embodiment of the x-ray emitter. 1. An x-ray emitter comprising:a housing, the housing including a diamagnetic or paramagnetic housing material and a plurality of ferromagnetic particles, the ferromagnetic particles being aligned substantially along closed paths.2. The x-ray emitter of claim 1 , wherein the ferromagnetic particles are elongated.3. The x-ray emitter of claim 1 , wherein the ferromagnetic particles are ferromagnetic nanoparticles.4. The x-ray emitter of claim 1 , wherein a concentration of ferromagnetic particles varies.5. The x-ray emitter of claim 1 , wherein the housing surrounds at least one of the x-ray tube and a disc motor of the x-ray tube.6. The x-ray emitter of claim 1 , wherein the housing material includes glass or plastic.7. The x-ray emitter of claim 1 , wherein the housing is a vacuum housing.8. The x-ray emitter of claim 1 , wherein the paths run substantially in parallel to magnetic flux lines of a magnetic field to be shielded.9. The x-ray emitter of claim 1 , wherein the paths run substantially in a plane perpendicular to an electron current trajectory of the x-ray tube.10. A medical device comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the x-ray emitter of .'}11. A method for assembling a housing of an x-ray emitter comprising: providing a material including a plurality of ferromagnetic particles,', 'aligning the ferromagnetic particles through a magnetic field, the material being in a flowable state, and', 'solidifying the material and fixing the alignment of the ferromagnetic particles; and, 'producing a housing of the x-ray transmitter, the producing including'} ...

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Номер записи: 57
21-01-2016 дата публикации

X-RAY SOURCE, HIGH-VOLTAGE GENERATOR, ELECTRON BEAM GUN, ROTARY TARGET ASSEMBLY, ROTARY TARGET, AND ROTARY VACUUM SEAL

Номер: US20160020058A1
Автор: HADLAND Roger
Принадлежит:

Disclosed herein are a high-voltage generator () for an x-ray source, an x-ray gun, an electron beam apparatus, a rotary vacuum seal, a target assembly for an x-ray source, a rotary x-ray emission target (), and an x-ray source. These various aspects may separately and/or together enable the construction of an x-ray source which can operate at energies of up to 500 kV and beyond, which is suitable for use in commercial and research x-ray applications such as computerised tomography. In particular, the high-voltage generator includes a shield electrode () electrically connected intermediate of a first voltage multiplier () and a second voltage multiplier (). The electron beam apparatus includes control photodetectors (—not shown) and photo emitters () having a transparent conductive shield (and —not shown) arranged therebetween. The rotary vacuum seal includes a pumpable chamber () at a position intermediate between high-pressure and low-pressure ends of a bore () for a rotating shaft (). The rotary target assembly is configured such that when a torque between a bearing housing () and a vacuum housing exceeds a predetermined torque, the bearing housing rotates relative to the vacuum housing. The rotary x-ray emission target () has a plurality of target plates () supported on a hub, the plates being arranged on the hub to provide an annular target region about an axis rotation of the hub. The x-ray gun is provided with a shield electrode () maintained at a potential difference relative to the x-ray target different to the electron beam emission cathode.

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Номер записи: 58
21-01-2016 дата публикации

Portable Industrial Radiography Apparatus

Номер: US20160021725A1
Автор: Pellechia Richard
Принадлежит:

A portable industrial radiography apparatus is provided for radiographic non-destructive testing. The portable industrial radiography apparatus includes a support frame, an upright support member attached to the support frame, an elongate lift arm including a first end and a second end, wherein the elongate lift arm is pivotally attached to the upright support member adjacent the second end of the lift arm, an x-ray tube attached to the first end of the elongate lift arm, and a linear actuator positioned between the support frame and the lift arm for manipulating a position of the x-ray tube attached to the first end of the elongate lift arm. 1. A portable industrial radiography apparatus comprising:a support frame;an upright support member attached to the support frame;an elongate lift arm including a first end and a second end, wherein the elongate lift arm is attached to the upright support member at a pivot adjacent the second end of the lift arm;an x-ray tube attached to the first end of the elongate lift arm; anda linear actuator positioned between the support frame and the lift arm for manipulating a position of the x-ray tube attached to the first end of the elongate lift arm.2. The portable industrial radiography apparatus of wherein the linear actuator is attached to the lift arm at a point between the first end of the elongate lift arm and the pivot.3. The portable industrial radiography apparatus of claim 1 , wherein the lift arm comprises a shaft slidably inserted into a sleeve.4. The portable industrial radiography apparatus of claim 3 , wherein the sleeve supports the shaft with one or more pairs of opposing angled rollers claim 3 , the opposing angled rollers shaped to conform to a shape of the shaft.5. The portable industrial radiography apparatus of claim 4 , wherein the opposing angled rollers are attached to the sleeve at a bracket claim 4 , and wherein the opposing angled rollers are attached to the bracket with a fastener extending through each ...

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Номер записи: 59
17-01-2019 дата публикации

X-ray tube for improving electron focusing

Номер: US20190019647A1
Автор: Dong-Gil JUNG, Dong-Hoon Lee, Dongkyu SEOL, Eun-Min KIM, Sang-Bong Seo, Sang-Hyo Kim, Sih-Wan HEO
Принадлежит: SUNJE HI-TEK Co Ltd

Disclosed is an X-ray tube for improving electron focusing, which allows thermoelectrons emitted from a filament to efficiently reach a target of an X-ray irradiation window. To achieve this, the X-ray tube includes: a thermionic emitter configured to emit thermoelectrons by application of a negative high voltage; a focusing tube configured to focus the thermoelectrons emitted from the thermionic emitter; an X-ray irradiation window configured to irradiate X-rays outside by the thermoelectrons bombarded on a target distributed on the X-ray irradiation window, to generate the X-rays after the thermoelectrons pass through the focusing tube; a tube part including both the thermionic emitter and the focusing tube; and a housing surrounding the tube part, wherein the focusing tube and the housing are configured to have a same potential such that movement directions of the thermoelectrons are directed to the X-ray irradiation window.

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Номер записи: 60
22-01-2015 дата публикации

X-Ray Testing Device for Material Testing and Method for the Generation of High-Resolution Projections of a Test Object by means of X-Ray Beams

Номер: US20150023472A1
Автор: Aslami Farid John, Friedemann Reinhard, Schmitt Andreas
Принадлежит:

An X-ray testing device for generating high-resolution geometric projections of a test object, includes a highly focusing X-ray source having: a rotary anode assembly formed by a rotatably mounted anode plate, an anode plate drive connected to rotate the anode plate and a rotational angle encoder detecting the rotation angle of the anode plate; an electron gun producing a focused electron beam; and an electron beam control unit having an electron beam deflecting unit and a control unit, the electron beam deflecting unit controlling the point of incidence of the electron beam generated by the electron gun on the anode plate. The control unit controlling the electron beam deflecting unit dependent on the detected rotation angle of the anode plate minimizing the positional change of the point of incidence on the anode plate relative to a reference point on a bracket holding the test object located in a fixed position. 2. The X-ray testing device according to claim 1 , 'wherein the control unit is minimizing the positional change of the point of incidence such that the change of the magnification and/or position of the geometric projection of the test object on the X-ray detector over an exposure time of the X-ray detector is as small as possible.', 'further comprises an X-ray detector recording X-radiation emitted by the X-ray source after its passage through the test object located in the bracket to make a geometric projection of the test object,'}3. The X-ray testing device according to claim 1 , wherein the control unit minimizes the positional change of the point of incidence by fluctuations in the distance between the point of incidence and the reference point being minimized.4. The X-ray testing device according to claim 1 , wherein the control unit minimizes the positional change of the point of incidence by fluctuations in the angular position of the connecting line between the point of incidence and the reference point in space being minimized.5. The X-ray ...

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Номер записи: 61
21-01-2021 дата публикации

X-RAY SOURCE WITH ROTATING ANODE AT ATMOSPHERIC PRESSURE

Номер: US20210020398A1
Автор: Hansen William Henry, Kirz Janos, Yun Wenbing
Принадлежит:

An x-ray source includes an anode assembly having at least one surface configured to rotate about an axis, the at least one surface in a first region. The x-ray source further includes an electron-beam source configured to emit at least one electron beam configured to bombard the at least one surface of the anode assembly. The electron-beam source includes a housing, a cathode assembly, and a window. The housing at least partially bounds a second region and comprises an aperture. The cathode assembly is configured to generate the at least one electron beam within the second region. The window is configured to hermetically seal the aperture, to maintain a pressure differential between the first region and the second region, and to allow the at least one electron beam to propagate from the second region to the first region 1. An x-ray source comprising:an anode assembly comprising at least one surface configured to rotate about an axis, the at least one surface in a first region; a housing at least partially bounding a second region, the housing comprising an aperture;', 'a cathode assembly configured to generate the at least one electron beam within the second region; and', 'a window configured to hermetically seal the aperture, to maintain a pressure differential between the first region and the second region, and to allow the at least one electron beam to propagate from the second region to the first region., 'an electron-beam source configured to emit at least one electron beam configured to bombard the at least one surface of the anode assembly, the electron-beam source comprising2. The x-ray source of claim 1 , wherein the window has a thickness in a range of 0.1 micron to 10 microns and a width in a range of 10 microns to 2000 microns.3. The x-ray source of claim 1 , wherein the window comprises at least one material in the group consisting of: diamond claim 1 , silicon claim 1 , silicon nitride claim 1 , boron nitride claim 1 , boron carbide claim 1 , ...

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Номер записи: 62
25-01-2018 дата публикации

X-RAY EMITTER

Номер: US20180025883A1
Автор: ISSBRUECKER CARRY, Standar Robert
Принадлежит:

An X-ray emitter includes an emitter housing in which an X-ray tube is disposed and held in the emitter housing by a fixing facility. The fixing facility includes a fixed bearing disposed on the cathode side and a floating bearing disposed on the anode side. At least the floating bearing has at least one damping element. In the X-ray emitter, the X-ray tube is aligned inside the emitter housing and fixed in a respectively low-vibration or vibration-damped manner, resulting in a more stable focus position relative to a beam exit and also a correspondingly improved image quality. 1. An X-ray emitter , comprising:an emitter housing;an X-ray tube disposed in said emitter housing;a fixing facility holding said X-ray tube in said emitter housing;said fixing facility including a fixed bearing disposed on a cathode side and a floating bearing disposed on an anode side; andat least said floating bearing having at least one damping element.2. The X-ray emitter according to claim 1 , wherein said fixed bearing has at least one damping element.3. The X-ray emitter according to claim 1 , wherein said X-ray tube is an all-metal tube.4. The X-ray emitter according to claim 1 , wherein said X-ray tube is a metal center section tube.5. The X-ray emitter according to claim 1 , wherein said X-ray tube is a metal ceramic tube.6. The X-ray emitter according to claim 1 , wherein said emitter housing is an X-ray emitter housing.7. The X-ray emitter according to claim 1 , wherein said emitter housing is a single-tank housing.8. The X-ray emitter according to claim 1 , wherein said emitter housing is a duo-block.9. The X-ray emitter according to claim 1 , wherein said fixed bearing includes a tube flange and a fixing flange claim 1 , said tube flange is fixed rigidly to said X-ray tube and said fixing flange is part of said emitter housing.10. The X-ray emitter according to claim 9 , wherein said tube flange encloses an outer periphery of a beam exit window disposed in said X-ray tube. This ...

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Номер записи: 63
28-01-2016 дата публикации

ROTATION ANODE X-RAY TUBE UNIT AND ROTATION ANODE X-RAY TUBE ASSEMBLY

Номер: US20160029468A1
Автор: ANNO Hidero, IMAI Yoshifumi, KANAGAMI Masaji, SHIRATORI Yoshiaki, TAMURA Hisayuki
Принадлежит:

A rotation anode X-ray tube unit includes a rotation anode X-ray tube, a flow-passage formation member, and a X-ray shielding section. The X-ray shielding section includes an X-ray shield and a frame-shaped X-ray shielding member. 1. A rotation anode X-ray tube unit comprising:a rotation anode X-ray tube including a cathode which emits electrons, an anode target which is rotatably provided to emit X-rays, and a vacuum envelope which accommodates the cathode and the anode target;a flow-passage formation member including a shell which surrounds the vacuum envelope in a direction perpendicular to an axis of the anode target, the flow-passage formation member forming a flow passage in which a cooling fluid flows and which is located between the flow-passage formation member and the vacuum envelope; andX-ray shielding means for preventing leakage of the X-rays,whereinthe X-ray shielding means includes:an X-ray shield located opposite to the rotation anode X-ray tube with respect to the shell, and including a through hole which permits X-rays to be transmitted therethrough; anda frame-shaped X-ray shielding member attached to the X-ray shield, surrounding the through hole of the X-ray shield, and projecting opposite to the shell with respect to the X-ray shield.2. The rotation anode X-ray tube unit of claim 1 , wherein the X-ray shield is shaped to be in tight contact with or close contact with the shell.3. The rotation anode X-ray tube unit of claim 2 , wherein the X-ray shield is fixed to the shell claim 2 , and forms a shield structure with the shell.4. The rotation anode X-ray tube unit of claim 1 , further comprising:an electrical insulating member located outward of the rotation anode X-ray tube on a side located opposite to the anode target with respect to the cathode; andanother X-ray shield attached to the electrical insulating member, and including an end portion laid over the X-ray shield.5. The rotation anode X-ray tube unit of claim 1 , wherein the shell is ...

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Номер записи: 64
28-01-2016 дата публикации

COMPACT X-RAY GENERATION DEVICE

Номер: US20160029469A1
Автор: Camara Carlos G., Gamlieli Zachary J., Lucas Benjamin A.
Принадлежит:

An x-ray transmitter, which may be compact, may be in the form of a housing with an x-ray transparent window sputtered with a metal on one wall, and tribocharging electron source on another wall. 1. An x-ray emission device , comprising:a housing configured to maintain a low fluid pressure environment, the housing having a a first wall with a window substantially transparent to x-rays and a second wall having a portion comprising an exterior surface comprising an electrically insulating material;an electron target within the housing;an electrically chargeable material within the housing; anda contact material for frictionally contacting the electrically insulating material, the contact material comprising a material such that frictional contact with the electrically insulating material generates a charge imbalance.2. The x-ray emission device of claim 1 , wherein the portion of the second wall comprising the electrically insulating material further comprises a metal interior to and in contact with the electrically insulating material claim 1 , the metal electrically insulated from other portions of the housing.3. The x-ray emission device of claim 1 , wherein the electron target is metal on an interior surface of the window substantially transparent to x-rays.4. The x-ray emission device of claim 3 , wherein the metal is gold sputtered onto to the window substantially transparent to x-rays.510.-. (canceled)11. The x-ray emission device of claim 1 , wherein the electrically insulating material comprises a dielectric.12. (canceled)13. The x-ray emission device of claim 1 , wherein the electrically insulating material comprises a membrane.14. The x-ray emission device of wherein the electrically chargeable material is a mesh.1518.-. (canceled)19. The x-ray emission device of claim 1 , wherein the electron target comprises a metal.20. The x-ray emission device of claim 1 , wherein the electron target comprises a ceramic compound.21. The x-ray emission device of claim 1 ...

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Номер записи: 65
02-02-2017 дата публикации

RADIOGRAPHIC APPARATUS

Номер: US20170027531A1
Автор: Ito Nobuhiro, Shiozawa Takashi, Tsujino Kazuya, Ueda Kazuyuki
Принадлежит:

A radiographic apparatus includes a target array and an X-ray detecting unit. The target array includes a plurality of targets and a forward shielding member. The X-ray detecting unit includes a detecting portion. The X-ray detecting unit further includes a shielding portion extending toward an outer side of the detecting portion along an array direction in which the targets are arrayed. 1. A radiographic apparatus comprising: a target array including a plurality of targets that are arrayed in a line and a forward shielding member, the forward shielding member including a plurality of partitions that each separate adjacent ones of the targets, and', 'an electron emitting source that emits electron beams to electron incident surfaces of the plurality of targets, respectively; and, 'an X-ray generating unit that includes'} a detecting portion facing the target array and including a plurality of detecting devices, and', 'a shielding portion provided on an outer side of the detecting portion along an array direction in which the targets are arrayed in a line,, 'an X-ray detecting unit that includes'}wherein the X-ray generating unit forms a main exposed area and a penumbra area on the X-ray detecting unit, the penumbra area being formed on the outer side of the main exposed area, andwherein the shielding portion includes at least a part positioned in the penumbra area.2. The radiographic apparatus according to claim 1 , wherein the shielding portion includes a part that is positioned on the outer side of the penumbra area along the array direction.3. The radiographic apparatus according to claim 1 , wherein the shielding portion includes at least a contact part provided in contact with an outer edge of the detecting portion and a part extending from the contact part toward the outer side along the array direction claim 1 , or an overlapping part overlapping the detecting portion along the array direction and a part extending from the overlapping part toward the outer ...

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Номер записи: 66
24-04-2014 дата публикации

X-RAY EMITTING TARGET AND X-RAY EMITTING DEVICE

Номер: US20140112450A1
Автор: Ito Nobuhiro, Ogura Takao, Sato Yasue
Принадлежит: CANON KABUSHIKI KAISHA

An X-ray emitting target including a diamond substrate, a first layer disposed on the diamond substrate and including a first metal, and a second layer disposed on the first layer and including a second metal whose atomic number is 42 or more and which has a thermal conductivity higher than that of the first metal. Carbide of the first metal is present at a boundary between the diamond substrate and the first layer. The target is prevented from overheating, so that output variation due to rising temperature is suppressed. Thus it is possible to emit stable and high output X-rays. 1. An X-ray emitting target comprising:a diamond substrate;a first layer disposed on the diamond substrate and including a first metal; anda second layer disposed on the first layer and including a second metal whose atomic number is 42 or more and which has a thermal conductivity higher than that of the first metal,wherein a carbide of the first metal is present at a boundary between the diamond substrate and the first layer.2. An X-ray emitting target comprising:a diamond substrate;a first layer disposed on the diamond substrate and including a first metal where a standard free energy of formation of carbide in a temperature range from 500 degrees Celsius to 1500 degrees Celsius is negative; anda second layer disposed on the first layer and including a second metal whose atomic number is 42 or more and which has a thermal conductivity higher than that of the first metal.3. The X-ray emitting target according to claim 1 , wherein a layer thickness of the first layer is greater than or equal to 1 nm and smaller than or equal to 10 nm.4. The X-ray emitting target according to claim 1 , wherein a solid solution of the first metal and the second metal is present at a boundary between the first layer and the second layer.5. The X-ray emitting target according to claim 1 , wherein the first metal is any one of titanium claim 1 , vanadium claim 1 , tantalum claim 1 , and chromium.6. The X-ray ...

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Номер записи: 67
24-04-2014 дата публикации

MOBILE X-RAY IMAGE CAPTURING APPARATUS

Номер: US20140112455A1
Автор: Matsuda Daizo
Принадлежит: CANON KABUSHIKI KAISHA

A mobile X-ray capturing apparatus includes an X-ray tube for irradiating an object with X ray, an arm for holding the X-ray tube, and a support pillar for holding the arm so as to facilitate arrangement of units. Further, the mobile X-ray capturing apparatus includes an arm energizing unit provided with an electrode incorporated in the arm for supplying power or a signal necessary for the X-ray tube, and a support pillar energizing unit provided with an electrode incorporated in the support pillar for supplying the power or the signal to the arm. 1. A mobile X-ray-capturing apparatus comprising:an X-ray tube for irradiating an object with X-rays;an arm for holding the X-ray tube;a support pillar for holding the arm;a first electrical conductor comprising an electrode incorporated in the arm for supplying power or a signal to the X-ray tube; anda second electrical conductor comprising an electrode incorporated in the support pillar for supplying power or the signal to the arm.2. The mobile X-ray-capturing apparatus according to claim 1 ,wherein the arm comprises a plurality of connected portions; andwherein the first electrical conductor is configured to supply power or a signal to the plurality of arm portions.3. The mobile X-ray-capturing apparatus according to claim 1 , wherein the first electrical conductor is configured to receive a wireless power or signal transmission.4. The mobile X-ray-capturing apparatus according to claim 1 ,wherein the support pillar comprises a plurality of connected portions; andwherein the second electrical conductor is configured to supply power or a signal to the plurality of support pillar portions.5. The mobile X-ray-capturing apparatus according to claim 1 , wherein the second electrical conductor is configured to receive a wireless power or signal transmission.6. The mobile X-ray-capturing apparatus according to claim 1 , wherein the support pillar is configured to be rotatable with respect to the mobile X-ray capturing ...

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Номер записи: 68
29-01-2015 дата публикации

Multi-source radiation generator and radiographic imaging system

Номер: US20150030119A1
Автор: Kazuyuki Ueda, Miki Tamura
Принадлежит: Canon Inc

A multi-source radiation generator in which plural radiation sources are arranged in series includes a control unit that controls a dose of radiation emitted from each of the radiation sources depending on positions of the radiation sources, and reduces variation in a radiation dose resulting from differences in positions of the radiation sources by changing an irradiation time, an anodic current value of each of the radiation sources depending on a distance from each of the radiation sources to a subject.

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Номер записи: 69
24-01-2019 дата публикации

X-RAY SYSTEMS AND METHODS INCLUDING X-RAY ANODES WITH GRADIENT PROFILES

Номер: US20190027337A1
Автор: Olsen Neil Dee
Принадлежит:

An anode for an X-ray tube can include one or more of an yttrium-oxide derivative, titanium diboride, boron carbide, titanium suboxide, reaction-bonded silicon carbide, and reaction-bonded silicon nitride. Upon collision with an anode, the kinetic energy of an electron beam in an X-ray tube is converted to high-frequency electromagnetic waves, i.e., X-rays. An anode from one or more of the above materials and a gradient distribution of conductive metals can reduce costs and/or weight, extend the life of the anode or associated components (e.g., bearings) and simultaneously provide a higher heat storage capacity as compared to traditional molybdenum and tungsten anodes. 1. An X-ray anode , comprising: at least in a thermally excited state, emits X-rays in response to incident electrons from an electron beam, and', 'for at least a first temperature range, increases in thermal conductivity with increased temperature; and, 'a ceramic body that,'} 'wherein thermal energy from a plurality of received incident electrons is distributed throughout the ceramic body via the distributed conductive metals, such that the temperature of the ceramic body increases as does the thermal conductivity of the ceramic body for at least the first temperature range.', 'a gradient distribution of one or more conductive metals within the ceramic body to facilitate thermal distribution within the ceramic body,'}2. The X-ray anode of claim 1 , further comprising an outer layer of molybdenum on at least one surface to receive incident electronics from the electron beam and generate x-rays.3. The X-ray anode of claim 1 , wherein the gradient distribution of one or more conductive metals decreases in percentage from a surface of electron incidence to an opposing surface.4. The X-ray anode of claim 1 , wherein the gradient distribution of one or more conductive metals decreases in percentage from a ring of electron incidence on a surface of the ceramic body with respect to distance.5. The X-ray ...

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Номер записи: 70
28-01-2021 дата публикации

RADIATION ANODE TARGET SYSTEMS AND METHODS

Номер: US20210027973A1
Автор: Clayton James, STAR-LACK Josh
Принадлежит:

Presented systems and methods facilitate efficient and effective generation and delivery of radiation. A radiation generation system can comprise: a particle beam gun, a high energy dissipation anode target (HEDAT); and a liquid anode control component. In some embodiments, the particle beam gun generates an electron beam. The HEDAT includes a solid anode portion (HEDAT-SAP) and a liquid anode portion (HEDAT-LAP) that are configured to receive the electron beam, absorb energy from the electron beam, generate a radiation beam, and dissipate heat. The radiation beam can include photons that can have radiation characteristics (e.g., X-ray wavelength, ionizing capability, etc.). The liquid anode control component can control a liquid anode flow to the HEDAT. The HEDAT-SAP and HEDAT-LAP can cooperatively operate in radiation generation and their configuration can be selected based upon contribution of respective HEDAT-SAP and the HEDAT-LAP characteristics to radiation generation. 1. A therapeutic radiation generation system comprising:a particle beam gun that generates an electron beam;a high energy dissipation anode target (HEDAT), configured to receive the electron beam, absorb energy from the electron beam, generate a radiation beam, and dissipate heat, wherein the (HEDAT) includes a plurality of channels; anda liquid anode control component configured to control a flow of a liquid anode to the HEDAT.2. The therapeutic radiation generation system of claim 1 , wherein the plurality of channels are configured to accommodate a plurality of liquid anode flows.3. The therapeutic radiation generation system of claim 2 , wherein a first one of the plurality of channels is configured to accommodate a first liquid anode flow and a second one of the plurality of channels is configured to accommodate a second liquid anode flow.4. The therapeutic radiation generation system of claim 2 , wherein the first liquid anode flow and the second liquid anode flow are different.5. The ...

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Номер записи: 71
28-01-2021 дата публикации

X-ray source and method for generating x-ray radiation

Номер: US20210027974A1
Автор: Bjorn Hansson, Per TAKMAN, Shiho Tanaka, Yuli Wang
Принадлежит: EXCILLUM AB

The present inventive concept relates to an X-ray source comprising: a liquid target source configured to provide a liquid target moving along a flow axis; an electron source configured to provide an electron beam; and a liquid target shaper configured to shape the liquid target to comprise a non-circular cross section with respect to the flow axis, wherein the non-circular cross section has a first width along a first axis and a second width along a second axis, wherein the first width is shorter than the second width, and wherein the liquid target comprises an impact portion being intersected by the first axis; wherein the x-ray source is configured to direct the electron beam towards the impact portion such that the electron beam interacts with the liquid target within the impact portion to generate X-ray radiation.

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Номер записи: 72
23-01-2020 дата публикации

DATA MONITORING AND MANAGEMENT DEVICE AND EVENT DATA MONITORING METHOD

Номер: US20200029412A9
Автор: Honsawa Kunio, Izawa Hidehito, Kawachi Reiko, NOMOTO Hiroyuki
Принадлежит:

According to one embodiment, a device includes an instruction unit which records in a recording medium, event-related data of when an event is detected and monitoring data of when the event occurs, and a display data output unit which outputs from the recording medium and plays as display data, the event-related data and a part of the monitoring data corresponding to the event-related data. If there is a specification input to the displayed event-related data, the monitoring data corresponding to the event-related data is played. 1. A data monitoring and management device comprising:a network interface to obtain event-related data when at least a sensor detects an event being received as input;a data management unit to (i) control at least an operation of a camera and an operation of a microphone and (ii) send one or both of first monitoring data from the camera and second monitoring data from the microphone to a recording unit;a system controller controlling the data management unit, wherein an instruction unit to urge the event-related data of when the event is detected and the one or both of the first monitoring data and the second monitoring data of when the event occurs to be recorded in the recording unit;', 'a filtering unit filtering the event-related data; and', 'a display data output unit reproducing the event-related data and a part of the monitoring data of the event corresponding to the event-related data, which are extracted by the filtering unit, from the recording unit and outputting the data as display data, and, 'the system controller includes'}the filtering unit receives conditions for the filtering from a network.2. The data monitoring and management device of claim 1 , wherein the system controller receives an instruction to require monitoring data from the network.3. The data monitoring and management device of claim 2 , wherein the system controller receives an instruction “to designate an event to be checked” and/or an instruction “to check ...

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Номер записи: 73
31-01-2019 дата публикации

Monochromatic x-ray systems and methods

Номер: US20190030362A1
Автор: Eric H. Silver
Принадлежит: Imagine Scientific Inc

According to some aspects, a carrier configured for use with a broadband x-ray source comprising an electron source and a primary target arranged to receive electrons from the electron source to produce broadband x-ray radiation in response to electrons impinging on the primary target is provided. The carrier comprising a housing configured to be removeably coupled to the broadband x-ray source and configured to accommodate a secondary target capable of producing monochromatic x-ray radiation in response to incident broadband x-ray radiation, the housing comprising a transmissive portion configured to allow broadband x-ray radiation to be transmitted to the secondary target when present, and a blocking portion configured to absorb broadband x-ray radiation.

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Номер записи: 74
28-01-2021 дата публикации

X-RAY GENERATOR

Номер: US20210029809A1
Автор: Ishii Atsushi, KOBAYASHI Akihito
Принадлежит: HAMAMATSU PHOTONICS K.K.

An X-ray generator includes an X-ray tube, an X-ray tube accommodation portion, and a power source unit having an internal substrate supplying a voltage to the X-ray tube sealed inside an insulating block. A first space is defined by an upper surface of the insulating block and an inner surface of the X-ray tube accommodation portion. A second space is defined by a recess portion opening to the outside formed on a side surface of the insulating block and a sealing member sealing an opening of the recess portion. A communication hole causing the first space and the second space to communicate with each other is provided in the insulating block. Insulating oil is enclosed in the first space and the second space. A depth of the recess portion is smaller than a width of the recess portion. 1. An X-ray generator comprising:an X-ray tube configured to generate X-rays;an X-ray tube accommodation portion which accommodates at least a part of the X-ray tube such that at least the part of the X-ray tube is surrounded when viewed in a tube axis direction of the X-ray tube; anda power source unit disposed at a position facing the X-ray tube in the tube axis direction and having a high-voltage generation circuit supplying a voltage to the X-ray tube sealed inside a solid insulating block made of an insulative material,wherein a first space is defined by a first surface of the insulating block facing the X-ray tube and an inner surface of the X-ray tube accommodation portion,wherein a second space is defined by a recess portion opening to an outside formed on a second surface of the insulating block different from the first surface and a sealing member sealing an opening of the recess portion,wherein a communication portion causing the first space and the second space to communicate with each other is provided in the insulating block,wherein an insulating liquid is enclosed in the first space and the second space, andwherein a depth of the recess portion is smaller than a width ...

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Номер записи: 75
02-02-2017 дата публикации

X-RAY GENERATING APPARATUS AND RADIOGRAPHY SYSTEM

Номер: US20170032923A1
Автор: Aoki Shuji, Tsunoda Koichi, Ueda Kazuyuki, Yamazaki Koji
Принадлежит:

Provided is an X-ray generating apparatus, which includes: an X-ray generating tube configured to emit X-rays through a first window; an outer case configured to contain the X-ray generating tube and provided with a second window transmitting the X-rays at a position facing the first window; an insulating fluid with which an unoccupied space of the outer case is filled; an insulating member located between the first window and the second window and provided with an opening in an irradiation area of the X-ray through the first window; and an insulating third window removably fit into the opening of the insulating member, wherein a linear expansion coefficient of the third window is greater than a linear expansion coefficient of the insulating member, and the third window and the first window face each other via a gap through which the insulating fluid is flowable. 1. An X-ray generating apparatus , comprising:an X-ray generating tube provided with a first window transmitting X-rays and configured to emit the X-rays through the first window;an outer case configured to contain the X-ray generating tube and provided with a second window transmitting the X-rays at a position facing the first window;an insulating fluid with which an unoccupied space of the outer case is filled;an insulating member located between the first window and the second window and provided with an opening in an irradiation area of the X-rays through the first window; andan insulating third window removably fit into the opening of the insulating member, whereina linear expansion coefficient of the third window is greater than a linear expansion coefficient of the insulating member, andthe third window and the first window face each other via a gap in which the insulating fluid is flowable.2. The X-ray generating apparatus according to claim 1 , wherein a thickness of the third window is less than a length of an area in which the third window and the insulating member face each other in a cross- ...

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Номер записи: 76
01-02-2018 дата публикации

X-RAY SYSTEMS AND METHODS INCLUDING X-RAY ANODES

Номер: US20180033584A1
Автор: Olsen Neil Dee
Принадлежит:

An anode for an X-ray tube can include a body comprising one or more of a yttrium-oxide derivative, titanium diboride, boron carbide, titanium suboxide, reaction bonded silicon carbide, and reaction boded silicon nitride. Upon collision with an anode, the kinetic energy of an electron beam in an X-ray tube is converted to high frequency electromagnetic waves, i.e., X-rays. An anode with a body from one or more of the above materials can reduce costs and/or weight, extend the life of the anode or associated components (e.g., bearings) and simultaneously provide a high heat storage capacity than traditional molybdenum and tungsten anodes. 1. An X-ray anode , comprising:a body that conducts electrons and emits X-rays in response to the incidence of the electrons when in a thermally excited state; and 'wherein the received electrons produce an increase in thermal energy in the deposited conductive metal, and the deposited conductive metal diffuses the increase in thermal energy to the body.', 'a conductive metal deposited onto the body to receive a plurality of electrons from an electron beam,'}2. The X-ray anode of claim 1 , wherein the conductive metal is deposited onto the body using doping.3. The X-ray anode of claim 1 , wherein the body is infused with the deposited conductive metal.4. The X-ray anode of claim 1 , wherein the body comprises titanium diboride.5. The X-ray anode of claim 1 , wherein the body comprises boron carbide.6. The X-ray anode of claim 1 , wherein the body comprises titanium suboxide.7. An X-ray anode claim 1 , comprising: emits X-rays at least in a thermally excited state in response to incident electrons from an electron beam, and', 'for at least a first temperature range, increases in thermal conductivity with increased temperature; and, 'a body that'} 'wherein the received plurality of incident electrons increases the thermal energy in the conductive metal wires, and the conductive metal wires diffuse the increase in thermal energy to the ...

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Номер записи: 77
30-01-2020 дата публикации

RADIATION ANODE TARGET SYSTEMS AND METHODS

Номер: US20200035438A1
Автор: Clayton James, STAR-LACK Josh
Принадлежит:

Presented systems and methods facilitate efficient and effective generation and delivery of radiation. A radiation generation system can comprise: a particle beam gun, a high energy dissipation anode target (HEDAT); and a liquid anode control component. In some embodiments, the particle beam gun generates an electron beam. The HEDAT includes a solid anode portion (HEDAT-SAP) and a liquid anode portion (HEDAT-LAP) that are configured to receive the electron beam, absorb energy from the electron beam, generate a radiation beam, and dissipate heat. The radiation beam can include photons that can have radiation characteristics (e.g., X-ray wavelength, ionizing capability, etc.). The liquid anode control component can control a liquid anode flow to the HEDAT. The HEDAT-SAP and HEDAT-LAP can cooperatively operate in radiation generation and their configuration can be selected based upon contribution of respective HEDAT-SAP and the HEDAT-LAP characteristics to radiation generation. 1. A therapeutic radiation generation system comprising:a particle beam gun that generates an electron beam;a high energy dissipation anode target (HEDAT), wherein the HEDAT includes a solid anode portion (HEDAT-SAP) and a liquid anode portion (HEDAT-LAP) that are configured to receive the electron beam, absorb energy from the electron beam, generate a radiation beam, and dissipate heat, anda liquid anode control component configured to control a flow of a liquid anode to the HEDAT.2. The therapeutic radiation generation system of claim 1 , wherein the radiation beam includes X-rays.3. The therapeutic radiation generation system of claim 1 , wherein configuration of the HEDAT-SAP and the HEDAT-LAP are selected based upon respective contributions the HEDAT-SAP and the HEDAT-LAP characteristics to radiation generation.4. The therapeutic radiation generation system of claim 1 , wherein the HEDAT-SAP and HEDAT-LAP cooperatively operate in radiation beam generation.5. The therapeutic radiation ...

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Номер записи: 78
30-01-2020 дата публикации

TARGET FOR GENERATING X-RAY RADIATION, X-RAY EMITTER AND METHOD FOR GENERATING X-RAY RADIATION

Номер: US20200035439A1
Автор: CYLIAX Benno, KOSCHMIEDER Martin, MOELLER Marvin, Mueller Sven, Willing Stefan
Принадлежит: Siemens Healthcare GmbH

A target is for generating X-ray radiation by way of loading with a particle stream containing charged particles. In an embodiment, the target includes a layer structure including at least two metallic layers. A target surface, loadable by the particle stream, is formed by a first layer of the at least two metallic layers of the layer structure including a material including a first metallic element. A second layer of the at least two metallic layers of the layer structure includes a material including a second metallic element. Finally, an ordinal number of the first metallic element is less than an ordinal number of the second metallic element. 1. A target for generating X-ray radiation by way of loading with a particle stream containing charged particles , the target including a layer structure comprisingat least two metallic layers, a target surface, loadable by the particle stream, being formed by a first layer of the at least two metallic layers of the layer structure including a material comprising a first metallic element, wherein a second layer of the at least two metallic layers of the layer structure includes a material comprising a second metallic element, and wherein an ordinal number of the first metallic element is less than an ordinal number of the second metallic element.2. The target of claim 1 , wherein the ordinal number of the first metallic element is less than 36 and the ordinal number of the second metallic element is more than 36.3. The target of claim 1 , wherein the material comprising a first metallic element and the material comprising a second metallic element are a metal or a metal alloy.4. The target of claim 1 , wherein the first metallic element is copper and the second metallic element is tungsten.5. The target of claim 1 , wherein a layer thickness of the first layer is in a region between 0.3 to 0.7 times a range of electrons in a material of the first layer and a layer thickness of the second layer is in a region between 0.3 and ...

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Номер записи: 79
30-01-2020 дата публикации

HIGH BRIGHTNESS X-RAY REFLECTION SOURCE

Номер: US20200035440A1
Автор: Hansen William Henry, Kirz Janos, Lewis Sylvia Jia Yun, Yun Wenbing
Принадлежит:

An x-ray target, x-ray source, and x-ray system are provided. The x-ray target includes a thermally conductive substrate comprising a surface and at least one structure on or embedded in at least a portion of the surface. The at least one structure includes a thermally conductive first material in thermal communication with the substrate. The first material has a length along a first direction parallel to the portion of the surface in a range greater than 1 millimeter and a width along a second direction parallel to the portion of the surface and perpendicular to the first direction. The width is in a range of 0.2 millimeter to 3 millimeters. The at least one structure further includes at least one layer over the first material. The at least one layer includes at least one second material different from the first material. The at least one layer has a thickness in a range of 2 microns to 50 microns. The at least one second material is configured to generate x-rays upon irradiation by electrons having energies in an energy range of 0.5 keV to 160 keV 1. An x-ray target comprising:a thermally conductive substrate comprising a surface; and a thermally conductive first material in thermal communication with the substrate, the first material having a length along a first direction parallel to the portion of the surface in a range greater than 1 millimeter and a width along a second direction parallel to the portion of the surface and perpendicular to the first direction, the width in a range of 0.2 millimeter to 3 millimeters; and', 'at least one layer over the first material, the at least one layer comprising at least one second material different from the first material, the at least one layer having a thickness in a range of 2 microns to 50 microns, the at least one second material configured to generate x-rays upon irradiation by electrons having energies in an energy range of 0.5 keV to 160 keV., 'at least one structure on or embedded in at least a portion of the ...

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Номер записи: 80
04-02-2021 дата публикации

X-RAY TUBE DEVICE

Номер: US20210035769A1
Автор: Nakamura Kenji, OGura Ryosuke, Takahashi Keiichiro
Принадлежит: FUJIFILM Corporation

An X-ray tube device includes a main body that incorporates a bulb, which generates X-rays, a collimator that is provided to protrude from the main body in an irradiation direction of the X-rays in a part of a front surface (first surface), which is a surface of the main body, and has an irradiation window for irradiating the X-rays with an adjusted irradiation range, and connectors that are provided for connecting a guard unit for keeping a distance from a test object, between the front surface (first surface) of the main body and a front surface (second surface), which is a surface of the collimator where the irradiation window is provided. 1. An X-ray tube device comprising:a main body that incorporates a bulb, which generates X-rays;a collimator that is provided to protrude from the main body in an irradiation direction of the X-rays in a part of a first surface, which is a surface of the main body, and has an irradiation window for irradiating the X-rays with an adjusted irradiation range; andconnectors that are provided for connecting a guard unit for keeping a distance from a test object, between the first surface of the main body and a second surface, which is a surface of the collimator where the irradiation window is provided.2. The X-ray tube device according to claim 1 ,wherein the connectors are provided in the collimator.3. The X-ray tube device according to claim 1 ,wherein the connectors have a shape in which a length in a direction perpendicular to the irradiation direction of the X-rays is longer than a length in a direction parallel to the irradiation direction of the X-rays.4. The X-ray tube device according to claim 2 ,wherein the connectors have a shape in which a length in a direction perpendicular to the irradiation direction of the X-rays is longer than a length in a direction parallel to the irradiation direction of the X-rays.5. The X-ray tube device according to claim 1 , further comprising:the guard unit connected to the connectors.6. ...

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Номер записи: 81
09-02-2017 дата публикации

SPARK GAP X-RAY SOURCE

Номер: US20170040079A1
Автор: Hansen Bill, Miller Eric
Принадлежит:

In one embodiment, the invention includes an x-ray source having a cathode with (1) a pointed end or (2) an elongated blade oriented substantially transverse with respect to a longitudinal axis of the cathode. The pointed end or blade can be pointed towards an anode. 1. An x-ray source comprising:a. an enclosure including an internal cavity;b. a gas disposed in the cavity and having a pressure of at least 0.0001 Torr;c. an anode and a cathode attached to the enclosure;d. the anode and the cathode being electrically-conductive;e. the cathode and the anode being spaced apart from each other and electrically insulated from each other;f. the cathode having a pointed end disposed within the cavity and pointed towards the anode with a gap between the pointed end and the anode; and i. associated with and connected to the anode;', 'ii. being substantially transmissive to x-rays;', 'iii. forming at least part of a wall of the enclosure; and', 'iv. separating at least a portion of the cavity from an exterior of the enclosure., 'g. an electrically-conductive window2. The x-ray source of claim 1 , wherein:a. the cathode is aligned along a longitudinal axis of the enclosure;b. the window is disposed in a lateral side of the enclosure;c. the anode includes an inclined region having an acute angle with respect to the longitudinal axis;d. a target material, configured to emit x-rays in response to impinging electrons from the cathode, is disposed on the inclined region of the anode;e. the target material is located to receive impinging electrons from the cathode and to emit x-rays towards the window;f. the inclined region includes a protrusion extending from a face of the anode facing the pointed end of the cathode;g. a radius of curvature at a distal end of the protrusion is less than 0.5 millimeters; andh. a distance from the face of the anode to the distal end of the protrusion is greater than two times the radius of curvature.3. The x-ray source of claim 2 , wherein a diameter ...

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Номер записи: 82
11-02-2016 дата публикации

Electrostatic-Dissipation Device

Номер: US20160044768A1
Автор: Hansen Bill, Harris Brad, Kamtekar Sanjay, Miller Eric, Wilson Steven West
Принадлежит:

An electrostatic-dissipation device comprising an x-ray tube and an electrically-conductive shell that is electrically coupled to an anode of the x-ray tube can be used for electrostatic dissipation, especially at a bottom side of a flat-panel-display (FPD). 1. An electrostatic-dissipation device configured to dissipate static electricity between a flat-panel-display (FPD) and a table during manufacture of the FPD , the device comprising: i. the x-ray tube includes a cathode and an anode electrically insulated from one another;', 'ii. the cathode is configured to emit electrons towards the anode;', 'iii. the anode is configured to emit x-rays out of the x-ray tube in response to impinging electrons from the cathode;, 'a. an x-ray tube, wherein i. carries the x-ray tube;', 'ii. is electrically-conductive;', 'iii. is electrically coupled to the anode and electrically insulated from the cathode;', 'iv. has a proximal-end closer to the cathode and a distal-end closer to the anode;', 'v. has a connector, at the proximal-end, configured to be coupled to an actuator for lifting the FPD;', 'vi. includes a hollow-region between a distal-end of the anode and the distal-end of the shell, the hollow-region being vented to allow passage of ions and x-rays outward from the hollow-region; and, 'b. a shell, wherein the shellc. a maximum outside diameter of less than 20 millimeters.2. The device of claim 1 , further comprising an electrically-insulative-material claim 1 , wherein the electrically-insulative-material:a. has a thermal conductivity of greater than 0.7 W/m*K;b. is located between the shell and the cathode; andc. electrically insulates the shell from the cathode.3. The device of claim 1 , further comprising a cap claim 1 , wherein the cap:a. is electrically-resistive;b. is located on the distal-end of the shell; andc. is configured to bear against a face of the FPD.4. The device of claim 3 , wherein the cap is vented to allow passage of ions and x-rays outward from the ...

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Номер записи: 83
16-02-2017 дата публикации

RADIOGRAPHIC IMAGING APPARATUS AND METHOD

Номер: US20170042497A1
Автор: Proksa Roland
Принадлежит:

The present invention relates to a radiographic imaging apparatus and a corresponding radiographic imaging method. The proposed apparatus comprises an X-ray source and a photon counting X-ray detector. The X-ray source comprises a rotary X-ray anode having a number of radial slits and a target layer provided on a surface of said rotary X-ray anode in between said radial slits for emitting X-ray radiation when hit by said electron beam. The said photon counting X-ray detector comprises a persistent current sensing and correction unit for sensing a persistent output current in a blanking interval during which no X-ray radiation is emitted by said X-ray source and for using the sensed persistent output current to correct a detector signal in a subsequent measurement interval during which X-ray radiation is emitted by said X-ray source. 1. An imaging apparatus , comprising: a cathode configured to emit an electron beam;', a plurality of radial slits; and', 'a target layer disposed on a surface of the anode between the radial slits,', 'wherein the target layer is configured to emit X-ray radiation in response to receiving the electron beam; and, 'an anode, including, 'a drive unit configured to rotate the X-ray anode during scanning such that during a first time interval the electron beam passes through the plurality of radial slits and during a subsequent time interval the target layer receives the electron beam and emits the X-ray radiation; and, 'a radiation source, includinga radiation detector configured to generate a first electrical signal during the first time interval and detect the emitted X-ray radiation and generate a subsequent electrical signal indicative thereof during the subsequent time interval.2. The imaging apparatus of claim 1 , further comprising:first circuitry configured to generate a first detector signal indicative of a first number of photons of the received X-ray radiation during the first time interval from the first electrical signal.3. The ...

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Номер записи: 84
24-02-2022 дата публикации

X-Ray Source Voltage Shield

Номер: US20220059308A1
Автор: Hoffman David S., Jones Vincent F., Miller Eric
Принадлежит:

A shield around an x-ray tube, a voltage multiplier, or both can improve the manufacturing process by allowing testing earlier in the process and by providing a holder for liquid potting material. The shield can also improve voltage standoff. A shielded x-ray tube can be electrically coupled to a shielded power supply. 1. A shielded x-ray tube comprising:an x-ray tube including a cathode and an anode electrically insulated from one another, the cathode configured to emit electrons in an electron beam towards the anode, and the anode configured to emit x-rays out of the x-ray tube in response to impinging electrons from the cathode;a longitudinal axis of the x-ray tube extending along a center of the electron beam and between the cathode and the anode;an x-ray tube shield encircling the x-ray tube, being electrically insulative, and spaced apart from the x-ray tube by an annular gap, including two open ends located opposite of each other;a longitudinal axis of the x-ray tube shield extends from a center of one open end to a center of the opposite open end;the longitudinal axis of the x-ray tube is parallel to the longitudinal axis of the x-ray tube shield;x-ray tube insulation separating the x-ray tube shield from the x-ray tube, the x-ray tube insulation comprising a solid, electrically-insulative material with a different material composition than a material composition of the x-ray tube shield;an outer insulation wrapping at least partially around the x-ray tube shield and being a solid, electrically-insulative material with a different material composition than a material composition of the x-ray tube shield; andthe x-ray tube shield sandwiched between the x-ray tube insulation and the outer insulation.2. The shielded x-ray tube of claim 1 , wherein the x-ray tube shield is embedded in the x-ray tube insulation and the outer insulation and electrically insulated from any power supply by the x-ray tube insulation and by the outer insulation.3. The shielded x-ray ...

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Номер записи: 85
19-02-2015 дата публикации

Liquid Metal Bearing

Номер: US20150049861A1
Автор: Dittrich Ronald, Fuchs Manfred
Принадлежит:

A liquid metal bearing includes at least one first bearing part and at least one second bearing part that have a non-positive fit connection to one another. At least one first ductile sealing layer is disposed at least partly between at least a first bearing part of the at least one bearing and a second bearing part of the at least one second bearing part. 1. A liquid metal bearing comprising:at least one first bearing part;at least one second bearing part, wherein the at least one first bearing part and the at least one second bearing part have a non-positive fit connection to one another; andat least one first ductile sealing layer that is disposed at least partly between a first bearing part of the at least one first bearing part and a second bearing part of the at least one second bearing part.2. The liquid metal bearing of claim 1 , further comprising a second ductile sealing layer that is disposed between the first bearing part and the second bearing part.3. The liquid metal bearing of claim 2 , further comprising an intermediate ring that is disposed between the first bearing part and the second bearing part claim 2 , wherein the at least one first ductile sealing layer is disposed at least partly between the first bearing part and the intermediate ring claim 2 , and the second ductile sealing layer is disposed at least partly between the intermediate ring and the second bearing part.4. The liquid metal bearing of claim 1 , wherein the at least one first ductile sealing layer is made of lead claim 1 , copper claim 1 , indium claim 1 , tin claim 1 , aluminum claim 1 , gold claim 1 , silver claim 1 , graphite claim 1 , alkali halides claim 1 , or a combination thereof.5. The liquid metal bearing of claim 2 , wherein at least one ductile sealing layer of the at least one first ductile sealing layer and the second ductile sealing layer is configured as a film.6. The liquid metal bearing of claim 2 , wherein at least one ductile sealing layer of the at least one ...

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Номер записи: 86
07-02-2019 дата публикации

DATA MONITORING AND MANAGEMENT DEVICE AND EVENT DATA MONITORING METHOD

Номер: US20190045611A1
Автор: Honsawa Kunio, Izawa Hidehito, Kawachi Reiko, NOMOTO Hiroyuki
Принадлежит:

According to one embodiment, a device includes an instruction unit which records in a recording medium, event-related data of when an event is detected and monitoring data of when the event occurs, and a display data output unit which outputs from the recording medium and plays as display data, the event-related data and a part of the monitoring data corresponding to the event-related data. If there is a specification input to the displayed event-related data, the monitoring data corresponding to the event-related data is played. 1. A data monitoring and management device comprising:a network interface to obtain event-related data when at least a sensor detects an event being received as input;a data management unit to (i) control at least an operation of a camera and an operation of a microphone and (ii) send one or both of first monitoring data from the camera and second monitoring data from the microphone to a recording unit;a system controller controlling the data management unit, wherein an instruction unit to urge the event-related data of when the event is detected and the one or both of the first monitoring data and the second monitoring data of when the event occurs to be recorded in the recording unit;', 'a filtering unit filtering the event-related data; and', 'a display data output unit reproducing the event-related data and a part of the monitoring data of the event corresponding to the event-related data, which are extracted by the filtering unit, from the recording unit and outputting the data as display data, and, 'the system controller includes'}the filtering unit receives conditions for the filtering from a network.2. The data monitoring and management device of claim 1 , wherein the system controller receives an instruction to require monitoring data from the network.3. The data monitoring and management device of claim 2 , wherein the system controller receives an instruction “to designate an event to be checked” and/or an instruction “to check ...

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Номер записи: 87
16-02-2017 дата публикации

X-RAY FLUORESCENCE SYSTEM WITH HIGH FLUX AND HIGH FLUX DENSITY

Номер: US20170047191A1
Автор: Kirz Janos, Lewis Sylvia Jia Yun, Yun Wenbing
Принадлежит:

We present a micro-x-ray fluorescence (XRF) system having a high-brightness x-ray illumination system with high x-ray flux and high flux density. The higher brightness is achieved in part by using x-ray target designs that comprise a number of microstructures of x-ray generating materials fabricated in close thermal contact with a substrate having high thermal conductivity. This allows for bombardment of the targets with higher electron density or higher energy electrons, which leads to greater x-ray flux. The high brightness/high flux x-ray source may then be coupled to an x-ray optical system, which can collect and focus the high flux x-rays to spots that can be as small as one micron, leading to high flux density at the fluorescent sample. Such systems may be useful for a variety of applications, including mineralogy, trace element detection, structure and composition analysis, metrology, as well as forensic science and diagnostic systems. 1. An x-ray fluorescence system comprising: 'an x-ray source and an x-ray optical train;', 'an x-ray illumination system comprising'}a mount to hold an object to be examined;a means for moving the mount; andan x-ray detector;in which the x-ray source additionally comprises:a vacuum chamber;a window transparent to x-rays attached to the wall of the vacuum chamber;and, within the vacuum chamber:at least one electron beam emitter, and a substrate comprising a first selected material, and', in a direction perpendicular to the first planar surface, and', 'two orthogonal lateral dimensions are measured', 'parallel to the first planar surface; and, 'a planar first surface, from which thickness is measured'}, 'a plurality of discrete structures, 'an anode target comprising 'selected for its x-ray generation properties;', 'one or more materials'}, 'the plurality of discrete structures comprising, 'embedded into the first planar surface of the substrate such that each of the plurality of discrete structures is in thermal contact with the ...

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Номер записи: 88
08-05-2014 дата публикации

X-ray emitting target and x-ray emitting device

Номер: US20140126701A1
Автор: Nobuhiro Ito, Takao Ogura, Yasue Sato
Принадлежит: Canon Inc

An X-ray emitting target including a diamond substrate, a first layer disposed on the diamond substrate and including a first metal, and a second layer disposed on the first layer and including a second metal whose atomic number is 42 or more and which has a thermal conductivity higher than that of the first metal. The layer thickness of the first layer is greater than or equal to 0.1 nm and smaller than or equal to 100 nm. The target is prevented from overheating, so that output variation due to rising temperature is suppressed. Thus it is possible to emit stable and high output X-rays.

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Номер записи: 89
08-05-2014 дата публикации

X-RAY EMITTER

Номер: US20140126702A1
Автор: Cloetta Dominique, Elsener Hans-Rudolf, Haag Werner, Hostettler Urs, Waber Toni, ZIGERLIG Benno
Принадлежит: COMET HOLDING AG

An X-ray emitter is suitable for evenly sterilizing large volumes of material in a short time, the emitter having an elongated X-ray target window and correspondingly elongated electron source mounted in a vacuum chamber. The electrons from the electron source are accelerated towards the X-ray target window, which generates X-rays directed outward from the vacuum chamber when irradiated by electrons from within the vacuum chamber. The elongated form of the electron source ensures that an evenly distributed beam of electrons, with a substantially constant linear distribution over the length of the electron source, arrives at the elongated X-ray target window such that a correspondingly even distribution of X-rays is generated from the X-ray target window. The X-ray target window includes a support substrate, and carries an X-ray target layer made of a target material such as tantalum or tungsten on its inner surface. A process for manufacturing the X-ray emitter is also described. 1. X-ray emitter comprising:an electron source in a vacuum chamber, arranged such that electrons from the electron source can be accelerated through the vacuum chamber towards an X-ray target window,the X-ray target window being arranged to generate X-rays directed outwardly from the vacuum chamber when the X-ray target window is irradiated by electrons from within the vacuum chamber,the electron source having an elongated form and being arranged to supply electrons with as substantially even distribution over the length of the electron source,the X-ray target window having an elongated form,the electron source and the X-ray target window being arranged to accelerate electrons from the electron source, towards the elongated X-ray target window, such that electrons arriving at the X-ray target window are substantially evenly distributed over the length of the elongated X-ray target window,the X-ray target window comprising a support substrate bearing a target layer made of a target material ...

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Номер записи: 90
08-05-2014 дата публикации

Systems and methods for monitoring and controlling an electron beam

Номер: US20140126704A1
Автор: Carey Shawn Rogers, John Scott Price, Mark Alan Frontera, Peter Andras Zavodsky, Sergio Lemaitre, Yun Zou
Принадлежит: General Electric Co

An X-ray tube assembly includes an electron beam transport tube, a beam tube protection assembly, and a control module. The electron beam transport tube includes an opening configured for passage of an electron beam, and includes an inner surface bounding the opening along a length of the electron beam transport tube. The beam tube protection assembly includes a plurality of beam protection electrode segments disposed within the opening of the electron beam transport tube and configured to protect the inner surface of the electron beam transport tube from contact with the electron beam. The control module is configured to determine a direction of the electron beam responsive to information received from the beam tube protection assembly.

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Номер записи: 91
16-02-2017 дата публикации

X-RAY SOURCE AND APPARATUS INCLUDING THE SAME

Номер: US20170048955A1
Автор: Jeong Jin-woo, SONG Yoon-Ho
Принадлежит:

Disclosed is an X-ray source, including: a cathode including a shielding channel through which an X-ray passes; emitters formed on an upper surface of the cathode, and arranged around the shielding channel; an anode positioned so as to face the cathode, and including an anode target in which an E-beam is focused; and a gate electrode positioned between the cathode and the anode, and including gate holes at positions corresponding to those of the emitters. 1. An X-ray source , comprising:a cathode including a shielding channel through which an X-ray passes;emitters formed on an upper surface of the cathode, and arranged around the shielding channel;an anode positioned so as to face the cathode, and including an anode target in which an E-beam is focused; anda gate electrode positioned between the cathode and the anode, and including gate holes at positions corresponding to those of the emitters.2. The X-ray source of claim 1 , wherein the shielding channel passes through the cathode in a thickness direction of the cathode claim 1 , and has an inlet and an outlet which have the same width.3. The X-ray source of claim 1 , wherein the shielding channel passes through the cathode in a thickness direction of the cathode claim 1 , and has an inlet and an outlet claim 1 , in which the inlet has a larger width than that of the outlet.4. The X-ray source of claim 1 , wherein a radiation angle of the X-ray emitted from the anode target is determined by adjusting a diameter of an E-beam which is focused in the anode target.9. The X-ray source of claim 1 , wherein the cathode includes:a first plate including a first shielding channel through which the X-ray passes; anda second shielding channel, through which the X-ray passing through the first shielding channel passes.10. The X-ray source of claim 9 , wherein the second shielding channel has a narrower width than that of the first shielding channel11. The X-ray source of claim 1 , wherein a surface of the anode target has a ...

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Номер записи: 92
03-03-2022 дата публикации

COMPONENT OR ELECTRON CAPTURE SLEEVE FOR AN X-RAY TUBE AND X-RAY TUBE HAVING SUCH A DEVICE

Номер: US20220068586A1
Автор: Schu André
Принадлежит:

A component part in a vacuum area of an X-ray tube with an opening through which an electron beam is guided. The component part includes a base body made of a first material, wherein the first material is a metal. Arranged on a surface forming the opening is a second material having an atomic number which is smaller than an atomic number of the first material. A target support is attached to an end of the component part. The target support supports a target which is aligned with a lens diaphragm formed at the end of the component part. The target support has a base body made of a first material which is a metal, and a second material formed on a surface of the base body that is selectively exposed to the electron beam and which extends between the target and the lens diaphragm.

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Номер записи: 93
03-03-2022 дата публикации

Silicon Nitride X-Ray Window and Method of Manufacture for X-Ray Detector Use

Номер: US20220068635A1
Автор: Fragala Joseph S., Zhao Xing
Принадлежит:

A method for producing a radiation window includes patterning a photo resist structure onto a double-sided silicon wafer, plasma etching the silicon wafer to create an etched silicon wafer having a silicon supporting structure etched upon a first side of the double-sided silicon wafer, applying a silicon nitride thin film to the etched silicon wafer, patterning a photo resist structure and plasma etching a second side of the double-sided silicon wafer to create an initial window in the silicon nitride thin film, and wet etching the second side of the double-sided silicon wafer to release the silicon nitride thin film and supporting structure from the portion of the double-sided silicon wafer defined by the initial window. 1. A method for producing a radiation window , comprising:patterning a photo resist structure onto a substrate,plasma etching the substrate to create an etched substrate having a supporting structure etched upon a first side of the substrate,applying a thin film to the etched substrate,patterning a photo resist structure and etching a second side of the substrate to create a silicon exposure area in the thin film; andetching the second side of the substrate to release the thin film and the supporting structure from the portion of the substrate defined by the silicon exposure area.2. The method according to claim 1 , wherein the etching substrate to create an etched substrate step is a plasma etching step that is performed using one of reactive ion etching claim 1 , deep ion etching claim 1 , and magnetically enhanced reactive ion etching.3. The method according to claim 1 , wherein the thin film is applied to the etched substrate using a low-pressure chemical vapor deposition.4. The method according to claim 1 , wherein the etching the second side of the substrate to release the thin film step is a wet etching step and includes using one of a potassium hydroxide and tetra-methyl ammonium hydroxide wet etching.5. The method according to claim 1 , ...

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Номер записи: 94
25-02-2016 дата публикации

System And Method For Multi-Source X-Ray-Based Imaging

Номер: US20160056008A1
Автор: Mackie Thomas R., Seaton Jonathon R., Walker Brandon J.
Принадлежит:

An imaging module includes a plurality of cathodes and respective gates, each cathode configured to generate a separate beam of electrons directed across a vacuum chamber and each gate matched to at least one respective cathode to enable and disable each separate beam of electrons from being directed across the vacuum chamber. A target anode is fixed within the vacuum chamber and arranged to receive the separate beam of electrons from each of the plurality of cathodes and, therefrom, generate a beam of x-rays. A deflection system is arranged between the plurality of cathodes and the target anode to generate a variable magnetic field to control a path followed by each of the separate beams of electrons to the target anode. 1. An imaging system comprising:a platform for receiving a subject to be imaged using the imaging system; a vacuum chamber;', 'a plurality of cathodes and respective gates, each cathode configured to generate a separate beam of electrons directed across the vacuum chamber and each gate matched to at least one respective cathode to enable and disable each separate beam of electrons from being directed across the vacuum chamber;', 'a target anode arranged to receive the separate beam of electrons from each of the plurality of cathodes and, therefrom, generate the beam of ionizing radiation;', 'a deflection system arranged between the plurality of cathodes and the target anode to generate a variable magnetic field to control a path followed by each of the separate beams of electrons to the target anode; and, 'a source module arranged to deliver a beam of ionizing radiation to the subject, the source module comprisinga controller configured to control operation of the plurality of cathodes and respective gates to selectively enable and disable each separate beam of electrons from being directed across the vacuum chamber and control operation of the deflection system to change the path followed by each of the separate beam of electrons to the target ...

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Номер записи: 95
22-02-2018 дата публикации

ANODE STACK

Номер: US20180053623A1
Автор: Alivov Yahya, Chidambaram Mahendran, Fowler Charles L., Roger Joseph
Принадлежит:

There is provided an anode stack for cooling and electrically insulating a high voltage anode of an X-ray device. The anode stack has at least a conductor member and a dielectric member, and the conductor member has a main body and a peripheral portion. The dielectric member overlies and couples with the main body of the conductor member at one surface. At an opposing surface of the main body of the conductor member, an end of the high voltage anode is coupled thereto in use. The peripheral portion of the conductor member has an annular region that surrounds at least a part of the dielectric member and which is spaced therefrom. 1. An anode stack for cooling and electrically insulating a high voltage anode of an X-ray device , the anode stack comprising:a conductor member and a dielectric member, the conductor member having a main body and a peripheral portion,wherein the dielectric member overlies the main body of the conductor member,wherein the main body of the conductor member is arranged to couple with the dielectric member at one surface, and with an end of the high voltage anode at an opposing surface in use, andwherein the peripheral portion of the conductor member comprises an annular region that surrounds at least a part of the dielectric member and which is spaced therefrom.2. An anode stack according to claim 1 , wherein the annular region of the peripheral portion of the conductor member surrounds a joining region between the dielectric member and the main body of the conductor member.3. An anode stack according to claim 2 , wherein the joining region has a perimeter surface comprising surfaces of the dielectric member and of the main body of the conductor member.4. An anode stack according to claim 3 , wherein the joining region is cylindrically shaped.5. An anode stack according to claim 3 , wherein all normal axes to the perimeter surface of the joining region are coplanar or lie in parallel planes.6. An anode stack according to claim 3 , wherein an ...

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Номер записи: 96
22-02-2018 дата публикации

X-RAY GENERATING TUBE, X-RAY GENERATING APPARATUS, AND RADIOGRAPHY SYSTEM

Номер: US20180053624A1
Автор: Ikarashi Yoichi
Принадлежит:

An X-ray generating tube includes: an anode including a target and an anode member electrically connected to the target; a cathode including an electron emitting source and a cathode member electrically connected to the electron emitting source; and an insulating tube joined at one end to the anode member and joined at the other end to the cathode member so that the target and the electron emitting portion face each other, in which an inner circumferential conductive film is formed on an inner surface of the insulating tube; an end surface conductive film extends from one edge of the inner circumferential conductive film on the one end side onto a surface of the one end of the insulating tube; and the end surface conductive film is sandwiched between the end surface and the anode member to be electrically connected to the anode member. 114.-. (canceled)15. An X-ray generating tube comprising:an insulating tube having a pair of ends in a tube axial direction; an electron emitting source having an electron emitting portion configured to irradiate an electron beam; and', 'a cathode member electrically connected to the electron emitting source; and, 'a cathode connected to the one end of the insulating tube and comprising a target configured to generate an X-ray upon an irradiation with the electron beam;', 'an anode member which is electrically connected to the target and which holds the target; and', 'an outer anode sleeve extending along the insulating tube from a peripheral portion of the anode member configured to be connected to the insulating tube,, 'an anode connected to the other end of the insulating tube and comprisingwherein the outer anode sleeve is connected to an outer surface of the insulating tube via a joining member.16. The X-ray generating tube according to claim 15 , wherein the joining member is annularly located between the outer surface of the insulating tube configured to make a hermetic joining between the insulating tube and the outer anode ...

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Номер записи: 97
13-02-2020 дата публикации

Combined Thermal and Voltage Transfer System for an X-ray Source

Номер: US20200051772A1
Автор: Teague Philip
Принадлежит:

A thermal control and electrical connection means for an electronic radiation source that provides a cooling and electrical connection to an electronic radiation source in high-temperature environment is provided, including at least a means for physically dislocating a positive high-voltage generator from the anode/target of the x-ray source; a means for conveying coolant fluids to a target anode along a coaxially formed connector; and a means for removing heat from the target anode along a coaxially-formed connector. A method of removing thermal energy from the target of an electronic radiation source is also provided, including at least introducing coolant fluids onto the target; removing coolant fluids from the target; and relocating the coolant fluids to another part of the tool for disposal within the wellbore. 1. A thermal control and electrical connection tool for an electronic radiation source that provides a cooling and electrical connection to an electronic radiation source in high-temperature environment , the tool comprising:a means for physically dislocating a positive high-voltage generator from the anode/target of the x-ray source;a means for conveying coolant fluids to a target anode along a coaxially formed connector; anda means for removing heat from the target anode along a coaxially-formed connector.2. The tool of claim 1 , where the coaxial structure bypasses annular ground-potential volumes located axially adjacent to the x-ray anode/target such that the volume is used for radiation detectors used for geo-physical measurements.3. The tool of claim 1 , where the electronic radiation source is an x-ray source.4. The tool of claim 1 , where the electronic radiation source is a pulsed neutron source.5. The tool of claim 1 , where the means is disposed within a wireline tool.6. The tool of claim 1 , where the means is disposed within a LWD tool.7. A method of removing thermal energy from the target of an electronic radiation source claim 1 , the ...

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Номер записи: 98
15-05-2014 дата публикации

Multi-radiation unit and radiation imaging system including the unit

Номер: US20140133628A1
Автор: Kazushige Utsumi, Kazuya Tsujino, Kazuyuki Ueda
Принадлежит: Canon Inc

A multi-radiation unit includes: a multi-radiation tube which has a plurality of electron sources, a plurality of targets and an intermediate electrode having openings through which electrons emitted from the electron sources pass; a selection circuit that allows electrons to be emitted from a selected electron source selected from the plurality of electron sources; an intermediate electrode potential defining unit that defines a potential of the intermediate electrode; a storage unit that stores, for each of the plurality of electron sources, an electrostatic control condition of the intermediate electrode for obtaining a predetermined irradiated state of a target corresponding to the selected electron source; and a changing unit that changes, when electrons are emitted from the selected electron source, the electrostatic control condition of the intermediate electrode based on the electrostatic control condition stored in the storage unit for the selected electron source.

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Номер записи: 99
15-05-2014 дата публикации

X-Ray Emitter Housing

Номер: US20140133634A1
Автор: Kaufmann Sebastian, Körner Andreas, Maurer Petra, Werner Lothar
Принадлежит:

An x-ray emitter housing includes a first housing part and a second housing part that are connected to one another in a form-fit manner using an axially acting threaded ring. 1. An x-ray emitter housing comprising:a first housing part; anda second housing part,wherein the first housing part and the second housing part are connected to one another in a form-fit manner with an axially acting threaded ring.2. The x-ray emitter housing of claim 1 , wherein the first housing part has a larger diameter than the second housing part.3. The x-ray emitter housing of claim 2 , wherein the threaded ring has an outer thread claim 2 , and the first housing part has a corresponding inner thread.4. The x-ray emitter housing of claim 1 , wherein the first housing part and the second housing part are connected to one another in the form-fit manner with at least one form-fit element.5. The x-ray emitter housing of claim 1 , wherein the first housing part is configured to at least partly receive an x-ray tube.6. The x-ray emitter housing of claim 1 , wherein the second housing part is configured to at least partly receive a drive motor for a rotary anode.7. The x-ray emitter housing of claim 6 , wherein a stator of the drive motor is arranged on an interior of the second housing part.8. The x-ray emitter housing of claim 1 , wherein a damping plate is arranged between the first housing part and the second housing part.9. The x-ray emitter housing of claim 3 , wherein the first housing part and the second housing part are connected to one another in a form-fit manner with at least one form-fit element.10. The x-ray emitter housing of claim 3 , wherein the first housing part is configured to at least partly receive an x-ray tube.11. The x-ray emitter housing of claim 3 , wherein the second housing part is configured to at least partly receive a drive motor for a rotary anode.12. The x-ray emitter housing of claim 11 , wherein a stator of the drive motor is arranged on an interior of the ...

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Номер записи: 100