Radiation generating apparatus and radiation imaging apparatus

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.

X-RAY DIAGNOSTIC APPARATUS

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 ...

COOLING ARRANGEMENT FOR X-RAY GENERATOR

In a device for generating X-rays or electron beams the cathode of the device is mounted on a ceramic insulator which becomes hot during operation, and the ceramic insulator is cooled by a fluid coolant flowing around the outside of the insulator at the remote end of the insulator, away from the cathode. The coolant conduit can be formed by flange rings, soldered directly on to the surface of the insulator, and the conduit may be shaped such that the coolant is in direct contact with the insulator. A method for manufacturing the de ice is also described.

BIASED CATHODE ASSEMBLY OF AN X-RAY TUBE WITH IMPROVED THERMAL MANAGEMENT AND A METHOD OF MANUFACTURING SAME

Various systems and methods are provided for a biased cathode assembly of an X-ray tube with improved thermal management and a method of manufacturing same. In one example, a cathode assembly of an X-ray tube comprises an emitter assembly including an emitter coupled to an emitter support structure, and an electrode assembly including an electrode stack and a plurality of bias electrodes. The emitter assembly including a plurality of independent components that are coupled together. The electrode assembly including a plurality of independent components that are coupled together, and the emitter assembly being coupled to the electrode assembly.

X-ray emitter

An x-ray emitter includes an x-ray tube and an x-ray emitter housing. In an embodiment, the x-ray tube includes an evacuated x-ray tube housing, a cathode for emitting electrons and an anode for generating x-rays as a function of the electrons. Further, in an embodiment, the x-ray emitter housing includes the x-ray tube and outside of the x-ray tube, a gaseous cooling medium. In an embodiment, the x-ray emitter further includes a compressor for a forced convection of the gaseous cooling medium for cooling the x-ray tube, a pressure ratio between the intake side and pressure side of the compressor being greater than 1.3.

X-ray source having cooling and shielding functions

Disclosed herein is an X-ray source having cooling and shielding functions. The X-ray source includes an X-ray generation unit ( 100 ) which has one or more insulation columns ( 160 ) and emits X-rays in a vacuum; a cooling unit ( 180 ) which is provided around a periphery of the X-ray generation unit and removes heat generated from the X-ray generation unit; and a shielding unit ( 190 ) which is provided around a periphery of the cooling unit and shields an area exposed to X-rays other than the areas related to the emission of the X-rays.

Systems and methods for controlling thermal conduction in x-ray tube cathodes

Systems and methods are provided for improving thermal management strategies of a cathode assembly of an X-ray tube. In one embodiment, an X-ray tube comprises an anode assembly and a cathode assembly, wherein the cathode assembly includes one or more elements that include an internal porous section for controlling a flow of heat within the cathode assembly during operation of the X-ray tube. In this way, heat conduction to temperature sensitive aspects of the cathode assembly may be reduced, while enabling sufficient heat transfer to other parts of the cathode assembly to minimize deformation.

Systems and methods for cooling x-ray tubes and detectors

According to various aspects, exemplary embodiments are disclosed of systems that may be used for cooling objects, such as X-ray tubes and detectors, etc. Also disclosed are exemplary embodiments of methods for cooling objects, such as X-ray tubes and detectors, etc. For example, an exemplary embodiment includes a system that can be used to cool an X-ray tube and detector with one chiller. As another example, an exemplary embodiment of a method includes using one chiller to cool an X-ray tube and detector.

X-RAY TUBE UNIT

An x-ray tube unit includes an x-ray tube unit housing, in which a vacuum housing is disposed, which includes a high-voltage component. The vacuum housing includes an insulating medium circulating in the x-ray tube unit housing flowing around it. Further, a cathode module and an anode are disposed in the vacuum housing, the cathode module lying at high voltage and including an emitter which emits electrons when heating current is fed to it. In addition, a potential difference is present between the cathode module and the anode for accelerating the emitted electrons. In accordance with an embodiment of the invention a high-voltage feed, a heating transformer and a radiation protection component are integrated into the high-voltage component, the high-voltage component being filled at least partly with an electrically-insulating encapsulation material. This produces a compact and installation-friendly x-ray tube unit which has high operational safety. 1. An x-ray tube unit comprising: an insulating medium circulating in the x-ray tube unit housing flowing around the insulating medium,', 'a cathode module and an anode disposed in the vacuum housing, the cathode module lying at high voltage and including an emitter to emit electrons when heating current is fed to the cathode module, a potential difference being present for accelerating the emitted electrons between the cathode module and the anode., 'an x-ray tube unit housing, a vacuum housing being disposed in the x-ray tube unit housing, the x-ray tube unit housing including a high-voltage component, a high-voltage feed, a heating transformer and a radiation protection component integrated into the high-voltage component, wherein the high-voltage component is filled at least partly with an electrically-insulating encapsulation material, and wherein the vacuum housing includes'}2. The x-ray tube unit of claim 1 , wherein the high-voltage component comprises a component housing made of an electrically-conducting ...

SYSTEMS AND METHODS FOR CONTROLLING THERMAL CONDUCTION IN X-RAY TUBE CATHODES

Systems and methods are provided for improving thermal management strategies of a cathode assembly of an x-ray tube. In one embodiment, an x-ray tube comprises an anode assembly and a cathode assembly, wherein the cathode assembly includes one or more elements that include an internal porous section for controlling a flow of heat within the cathode assembly during operation of the x-ray tube. In this way, heat conduction to temperature sensitive aspects of the cathode assembly may be reduced, while enabling sufficient heat transfer to other parts of the cathode assembly to minimize deformation. 1. An x-ray tube , comprising:an anode assembly and a cathode assembly, wherein the cathode assembly includes one or more elements that include an internal porous section for controlling a flow of heat within the cathode assembly during operation of the x-ray tube.2. The x-ray tube of claim 1 , wherein the cathode assembly further comprises a cathode cup assembly that includes at least a cup plate with a cup section claim 1 , a ceramic plate claim 1 , and an emitter weld pad for securing one or more emitters to the cathode assembly.3. The x-ray tube of claim 2 , wherein the internal porous section is included in the cup section that is coupled to the cup plate.4. The x-ray tube of claim 3 , wherein the cup section includes a first cup section and a second cup section claim 3 , the first cup section a mirror image of the second cup section; andwherein the internal porous section is included in the first cup section but not the second cup section, or vice versa.5. The x-ray tube of claim 2 , wherein the emitter weld pad includes a first leg and a second leg that extend from a first support member claim 2 , and a third leg and a fourth leg that extend from a second support member claim 2 , the first support member joined to the second support member via a coupling member; andwherein one or more of the first leg, the second leg, the third leg and the fourth leg include the ...

X-Ray Tube with Distributed Filaments

An x-ray generating unit includes an x-ray tube that is substantially transparent to x-rays and that defines a vacuum therein. A cathode is disposed within the x-ray tube and defines a plurality of spaced apart cavities. An anode is spaced apart from the cathode and includes a material that emits x-rays when impacted by electrons. A plurality of filaments is each disposed in a different one of the cavities defined by the cathode and each is electrically coupled to the cathode. Each filament emits a focused electron beam directed to a different predetermined spot on the anode upon application of a predetermined voltage between the cathode and the anode, thereby causing the anode to generate x-rays.

Computed tomography system having cooling system

A cooling system of a computed tomography (CT) system provides for a more efficient operation than known heretofore. The cooling system of the CT system includes a gantry and a table that moves an object into a bore of the gantry. The gantry includes part boxes mounted therein, and blade elements are formed in regions of the part boxes. The cooling system of the CT system includes a cooling method that includes a multiple cooling method including a stand-by mode and an operating mode.

X-RAY TUBE

An X-ray tube includes an electron gun, a target that generates X-rays, and a vacuum housing that accommodates the electron gun and the target. The vacuum housing has a metal portion having an X-ray emission window, and an insulation valve connected to the metal portion. The metal portion has a cylinder portion in which the X-ray emission window is provided and which surrounds a tube axis of the vacuum housing, and a tapered portion which is connected to an end portion of the cylinder portion, surrounds the tube axis, and protrudes such that a connection part between the metal portion and an insulation valve is covered. The tapered portion has a shape increased in diameter such that a separation distance between a distal end portion and the tube axis is longer than a separation distance between a base end portion and the tube axis. 1. An X-ray tube comprising:an electron gun that emits electrons;a target that generates X-rays when electrons emitted from the electron gun are incident on the target; anda vacuum housing that accommodates the electron gun and the target,wherein the vacuum housing has a metal portion which has an X-ray emission window emitting X-rays to the outside and a valve portion which is formed of an insulating material and is connected to the metal portion,wherein the metal portion has a first part in which the X-ray emission window is provided and which surrounds a central axis of the vacuum housing, and a second part which is connected to an end portion of the first part on the valve portion side, surrounds the central axis, and protrudes such that a connection part between the metal portion and the valve portion is covered, andwherein the second part has a shape increased in diameter such that a separation distance between a distal end portion on a side opposite to a base end portion connected to the first part and the central axis is longer than a separation distance between the base end portion and the central axis.2. The X-ray tube according ...

X-Ray Tube Single Anode Bore

An x-ray source can include an x-ray tube, and a heat sink for removal of heat from the x-ray tube. The heat sink can be thermally coupled to the anode and can extend away from the anode along a heat sink longitudinal axis. The heat sink can have a base and a fin extending from the base. The base can have a greater thickness nearer the anode, and a reduced thickness along the heat sink longitudinal axis to a smaller thickness farther from the anode. 1. An x-ray source 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 heat sink thermally coupled to the anode, and extending away from the anode along a heat sink longitudinal axis;the heat sink having a base and a fin extending from the base;the base having a greater thickness nearer the anode and reducing in thickness along the heat sink longitudinal axis to a smaller thickness farther from the anode.2. The x-ray source of claim 1 , wherein Th/Th≥1.5 claim 1 , where This the greater thickness of the base nearer the anode claim 1 , This the smaller thickness of the base farther from the anode claim 1 , both thicknesses measured perpendicular to the heat sink longitudinal axis and in a single plane parallel to and passing through the heat sink longitudinal axis.3. The x-ray source of claim 2 , wherein 10≥Th/Th≥2.4. The x-ray source of claim 1 , wherein the greater thickness nearer the anode and reducing in thickness along the heat sink longitudinal axis to the smaller thickness farther from the anode is on each of two opposite sides of the heat sink longitudinal axis.5. The x-ray source of claim 1 , wherein:the fin comprises an array of fins arrayed along the heat sink longitudinal axis;each fin of the array of fins extends from the base in a direction perpendicular to the heat ...

Industrial x-ray generator

本发明提供一种通过按适当的位置关系配置X射线管和高电压发生部，从而能小型、重量轻地形成装置整体，而且能用少量的模制材料确保充分绝缘的工业用X射线发生装置。在X射线发生装置(1)中，升压电路(27a)通过从自身的低电压输入端子(T1a)到高电压输出端子(T2a)依次连接多个升压级而形成。升压电路(27a)以使自身的低电压端子(T1a)与X射线管(7）的阳极(13)对应、使自身的高电压端子(T2a)与X射线管(7)的阴极(11）对应的方式配置于X射线管(7)的侧部区域。从阴极(11)向X射线管(7）的外部延伸的引线(28a)？连接于升压电路(27a)的高电压端子(T2a)。至少X射线管(7)的阴极(11)侧的端部、从阴极侧的端部伸出的引线(28a)、升压电路(27a)的高电压端子(T2a)侧的端部由包含绝缘性树脂的模制材料(M)模制成形。

X-ray tube device

Conventionally, the magnetic field generator 4 was arranged perpendicularly to the axis O of the electron beam B. The magnetic field generator 4 of this invention is arranged so as to be inclined relative to the axis V perpendicular to the axis O of the electron beam B. Specifically, the magnetic field generator 4 is arranged so as to be inclined relative to the axis V perpendicular to the axis O of the electron beam B within the range in the cathode 2 side from the focused and deflected electron beam B. Inclination up to the anode 5 side opposite to the cathode 2 side will lead to a possibility of increasing the reduced X-ray source diameter. Thus, arranging the magnetic field generator 4 so as to be inclined within the range in the cathode side from the electron beam B may reduce the X-ray source diameter.

Low-cost X-ray tube

Cooling assembly for an X-ray tube

A cooling assembly for an X-ray tube with a stationary body comprising a rotating body located at least around a part of the stationary body, and at least one coolant circuit with at least one coolant flowing through it. The coolant circuit is preferably interposed between the rotating body and the stationary body, with the coolant flowing between the rotating body and the stationary body.

Stationary cathode in rotating frame x-ray tube

An x-ray tube includes a stationary base and a passage therein. The x-ray tube includes an anode frame having an anode positioned adjacent to a first end and having a neck at a second end, the neck extends into the passage, wherein the anode frame is configured to rotate about a longitudinal axis of the passage. A hermetic seal is positioned about the neck between the neck and the stationary base.

X-ray tube device

X-ray tube apparatus

Conventionally, the magnetic field generator was arranged perpendicularly to the axis of the electron beam. The magnetic field generator of this invention is arranged so as to be inclined relative to the plane perpendicular to the axis of the electron beam. Specifically, the magnetic field generator is arranged so as to be inclined relative to the plane perpendicular to the axis of the electron beam within the range in the cathode side from the focused and deflected electron beam. Inclination up to the anode side opposite to the cathode side will lead to a possibility of increasing the reduced X-ray source diameter. Thus, arranging the magnetic field generator so as to be inclined within the range in the cathode side from the electron beam may reduce the X-ray source diameter.

X-ray tube apparatus

Conventionally, the magnetic field generator was arranged perpendicularly to the axis of the electron beam. The magnetic field generator (4) of this invention is arranged so as to produce an asymmetric magnetic field.

Apparatus and method for improved transient response in an electromagnetically controlled x-ray tube

本发明涉及用于电磁可控x射线管中的提高的瞬态响应的设备和方法。x射线管组件(14)包括真空罩(52)，其具有阴极部(56)、靶部(60)和喉道部(84)，该喉道部(84)包括不导电管(98)。该喉道部(84)具有耦合于该阴极部(56)的上游端(108)和耦合于该靶部(60)的下游端(112)。该x射线管组件(14)还包括安置在该真空罩(52)的该靶部(60)内的靶(58)，和安置在该真空罩(52)的该阴极部(56)内的阴极(54)。该阴极(54)配置成通过该喉道部(84)朝该靶(58)发射电子流(68)。

Radiation surface for X-ray equipment

X-Ray generating assembly with rotary anode

The invention relates to a X-ray generating assembly comprising an X-ray tube with rotary anode, and its object is to increase the dimensions of the anode and therefore its heat capacity and its performance whilst considerably reducing the longitudinal size of the tube. This X-ray generating assembly is characterised in that the enclosure (18) of the tube is a hollow ceramic cylinder, with dimensions substantially equal to those of the anode (10), in that the anode is mounted in the said enclosure on two circular rolling bearings (16 and 17) placed at the centre of the opposite plane faces (12 and 13) of the anode, close to the enclosure of the tube and cooled by the cooling fluid circulating in the protective jacket (24) of the tube and in that a stator (20) is placed in the immediate vicinity of the anode (10), outside the enclosure of the tube and is intended directly to rotate the anode about its axis of symmetry ( GAMMA 1). The invention applies to radiology apparatus.

Apparatus and method for improved transient response in an electromagnetically controlled X-ray tube

An x-ray tube assembly includes a vacuum enclosure having a cathode portion, a target portion, and a throat portion comprising a non-electrically conductive tube. The throat portion has an upstream end coupled to the cathode portion and a downstream end coupled to the target portion. The x-ray tube assembly also includes a target positioned within the target portion of the vacuum enclosure, and a cathode positioned within the cathode portion of the vacuum enclosure. The cathode is configured to emit a stream of electrons through the throat portion toward the target.

Vacuum housing for vacuum tube such as X=ray tube

The vacuum housing (1) consists of optically transparent material in the region for receiving the anode of the vacuum tube. In the regions in which surround the anode when the tube is in operation, the outside of the housing is coated with a material that has a higher thermal absorption coefficient and a higher thermal conductivity than the optically transparent material. The optically transparent material may be glass. The coating material may be graphite or glass-like carbon.

Removable aperture cooling structure for an X-ray tube

An x-ray tube having a removable aperture structure that can be detached from a portion of the x-ray tube without damaging either component is disclosed. The aperture structure includes heat conducting surfaces in communication with a coolant supplied to the fluid reservoir. The removable aperture structure includes a bond surface configured to receive a removable bond with the x-ray tube evacuated enclosure.

X-ray tube comprising an annular focus

The electron-emissive element in an X-ray tube is constructed so as to be loop-shaped so that an electron target which is also loop-shaped can be formed on an anode. Notably for target transmission tubes having an integrated window-anode element, a substantial reduction of the window temperature can thus be achieved. Inter alia because of the lower temperature gradients, the window can be constructed to be thinner; however, its service life is substantially prolonged and the radiation efficiency of the tube is increased.

Device, x-ray irradiation method, and manufacturing method for structure

X-ray

Röntgenstrahler mit einem ein fluidisches Kühlmittel enthaltenden Gehäuse (1), in dem eine Drehkolbenröhre (2) drehbar gelagert ist, die ein evakuiertes, eine Kathode (6) und eine Anode (10) enthaltendes Vakuumgehäuse (3) aufweist, wobei die Anode (10) eine Wandung des Vakuumgehäuses (3) bildet, an ihrer Außenseite (22) von dem Kühlmittel beaufschlagt ist, wobei die Außenseite (22) der Anode (10) unter Bildung eines Spaltes einer feststehenden Querwand (23) des Gehäuses (1) benachbart gegenüberliegend angeordnet ist und wobei eine die Oberfläche der Außenseite (22) vergrößernde Profilierung vorgesehen ist, wobei der Spalt und die Profilierung derart ausgebildet sind, daß sie eine Förderwirkung für das Kühlmittel entfalten. X-ray emitter with a housing (1) containing a fluidic coolant, in which a rotary piston tube (2) is rotatably mounted and has an evacuated vacuum housing (3) containing a cathode (6) and an anode (10), the anode (10 ) forms a wall of the vacuum housing (3), on its outer side (22) is acted upon by the coolant, the outer side (22) of the anode (10) forming a gap adjacent to a stationary transverse wall (23) of the housing (1) is arranged and wherein the surface of the outer side (22) enlarging profiling is provided, the gap and the profiling are designed such that they develop a conveying effect for the coolant.

Computed tomography system having cooling system

Miniature X-ray source with cryogenic cooling

A miniature X-ray source device (10) is connected to a distal end of a guiding wire for insertion towards a desired location within an animal body for effecting radiation therapy. The X-ray source device comprises a vacuum tube (12) containing a cathode (13) and an anode (14) spaced apart at some distance from each other; electron freeing means (17) for freeing electrons from the cathode; electric field means (15) for applying during use a high-voltage electric field between the cathode and the anode for accelerating the free electrons; the vacuum tube being at least partly transparent to X-ray radiation emitted by the anode, as well as cryogenic cooling means (22) for cooling at least the anode. The cooling means comprise at least one supply passageway (23a) for supplying pressurized gas towards the anode and at least one exhaust passageway (23b) for exhausting the pressurized gas from the anode, the supply passageway and the exhaust passageway being interconnected by means of an expansion chamber (24) surrounding at least partly the anode.

Electron absorption apparatus for an x-ray device

A shield assembly for an x-ray device is disclosed herein. The shield assembly includes a radiation shielding layer comprised of a first material; and a thermally conductive layer attached the radiation shielding layer. The thermally conductive layer is comprised of a second material. The shield assembly also includes an electron absorption layer attached to the radiation shielding layer. The electron absorption layer is comprised of a third material. The electron absorption layer is configured to absorb backscattered electrons.

X-ray tube comprising an annular focus

Cooling configuration for X-ray generator

Device, x-ray irradiation method, and manufacturing method for structure

A device capable of suppressing reduction in detection precision is provided. There is provided an apparatus configured to irradiate an object with an X-ray and detect a transmission X-ray transmitted through the object, including: a chamber member defining a first space; and a first supply port arranged in the first space to supply a temperature-controlled gas to a part of an X-ray source configured to irradiate the object with the X-ray.

Rotary X-ray

Drehkolben-Röntgenstrahler mit einem stationären Teil (1), das eine geerdete Außenhülle (6) umfasst, und mit einem in diesem um eine Drehachse (3) drehbar gelagerten Drehkolben (2), an dessen kathodenseitigem Stirnende (9) eine axiale Spannungszuleitung (10) zur Zuführung einer Hochspannung (V) an eine Kathode vorgesehen ist, wobei der zwischen der Spannungszuleitung (10) und der Außenhülle (6) gebildete Raum zumindest in einem an das kathodenseitige Stirnende (9) angrenzenden Bereich ölfrei ist, und wobei zwischen dem Drehkolben (2) und dem stationären Teil (1) ein zumindest im Bereich der Spannungszuführung (10) gasgefüllter Spalt (14) gebildet ist, gekennzeichnet durch mindestens eine den Spalt (14) im Bereich der Spannungszuleitung (10) flankierende Elektrode (24, 25, 30), an die ein das elektrische Feld im Spalt (14) reduzierendes elektrisches Potential angelegt ist. Rotary X-ray with a stationary one Part (1) comprising a grounded outer shell (6), and with a rotatably mounted in this about a rotation axis (3) Rotary piston (2), at the cathode-side end face (9) has an axial Voltage supply line (10) for feeding a high voltage (V) is provided to a cathode, wherein the between the voltage supply line (10) and the outer shell (6) space formed at least is oil-free in a region adjoining the cathode-side front end (9), and wherein between the rotary piston (2) and the stationary part (1) a gap (14) filled with gas at least in the region of the voltage supply (10) is formed, characterized by at least one of the gap (14) in the region of the voltage supply line (10) flanking electrode (24, 25, 30) to which a the electric field in the gap (14) reducing electrical potential is applied.

The manufacture method of device, x-ray irradiation method and structure

本发明是有关于一种可以抑制检测精度降低的装置。该装置对物体照射X射线，并对穿透物体的透射X射线进行检测。该装置设有形成第一空间的腔室部件；设有第一供给口，配置于第一空间，用以向对物体照射X射线的X射线源其至少一部分供给温度调整后的气体。

Structure for collecting scattered electrons

A structure for collecting scattered electrons within a substantially evacuated vessel containing both an electron-emitting cathode and an electron-attracting anode is disclosed herein. The electron-collecting structure includes a two-sided first plate, a two-sided second plate, a fluid inlet, and a fluid outlet. The first plate is both electrically conductive and thermally emissive and is mountable within the vessel so that its first side at least partially faces the anode. The second plate is also thermally emissive and has a first side that is substantially conterminous with the second side of the first plate. Furthermore, the second plate additionally has an internal conduit for conveying a heat-absorbing fluid within. Both the fluid inlet and the fluid outlet are in fluid communication with the conduit in the second plate. During operation, the structure is able to attract scattered electrons and transfer thermal energy attributable to the electrons away from the structure.

Device, x-ray irradiation method, and manufacturing method for structure

本发明是有关于一种可以抑制检测精度降低的装置。该装置对物体照射X射线，并对穿透物体的透射X射线进行检测。该装置设有形成第一空间的腔室部件；设有第一供给口，配置于第一空间，用以向对物体照射X射线的X射线源其至少一部分供给温度调整后的气体。

COOLING AN X-RAY GENERATING TUBE

Computed tomography system having cooling system

A cooling system of a computed tomography (CT) system provides for a more efficient operation than known heretofore. The cooling system of the CT system includes a gantry and a table that moves an object into a bore of the gantry. The gantry includes part boxes mounted therein, and blade elements are formed in regions of the part boxes. The cooling system of the CT system includes a cooling method that includes a multiple cooling method including a stand-by mode and an operating mode.

Method and system for liquid cooling isolated X-ray transmission target

An x-ray source has a target assembly including a target, an electron source for generating electrons to impact the target, and a flight tube assembly separating the target assembly from the electron source and transporting a coolant to the target assembly. The flight tube assembly includes a flight tube interface ring, a target cartridge tube, and an electrical isolation ring between the flight tube interface ring and the target cartridge tube.

Cryogenic x-ray source device

The invention relates to a miniature X-ray source device connected to a distal end of a guiding wire for insertion towards a desired location within an animal body for effecting radiation therapy, said X-ray source device at least comprising a vacuum tube accommodated in said housing containing a cathode and an anode spaced apart at some distance from each other; electron freeing means for freeing electrons from the cathode; electric field means for applying during use a high-voltage electric field between said cathode and said anode for accelerating said free electrons; said vacuum tube being at least partly transparent to X-ray radiation emitted by said anode, as well as cooling means for cooling at least said anode. It is an object to provide a miniature X-ray source device having further limited constructional dimensions and an improved control of the working temperature of at least the anode and hence the working conditions of the miniature X-ray source device. According to the invention the miniature X-ray source device is hereto characterised in that said cooling means are cryogenic cooling means. More in particular in a specific embodiment of said miniature X-ray source device said cooling means comprise at least one supply passageway for supplying pressurized gas towards said anode and at least one exhaust passageway for exhausting said pressurized gas from said anode, said supply passageway and said exhaust passageway being interconnected by means of an expansion chamber surrounding at least partly said anode.

Rotating envelope x-ray radiator

A rotating envelope radiator has a radiator housing surrounded by an external housing to form an intervening space in which a coolant flows. To prevent the formation, at high rotational frequencies, of reverse flows of the coolant in the intervening space, a flow conductor structure is provided in the intervening space that counteracts the formation of tangential flow components in the coolant.

Miniature X-ray tube cooling system

Shield structure and focal spot control assembly for x-ray device

A shield structure (200) and focal spot control assembly (250) is provided for use in connection with an X-ray device (100) that includes an anode (114) and cathode (112)disposed in a vacuum enclosure (102) in a spaced apart arrangement so that a target surfac of the anode is positioned to receive electrons emitted by the anode.

X-ray equipment

Apparatus and method for improved transient response in an electromagnetically controlled x-ray tube

本发明涉及用于电磁可控x射线管中的提高的瞬态响应的设备和方法。x射线管组件(14)包括真空罩(52)，其具有阴极部(56)、靶部(60)和喉道部(84)，该喉道部(84)包括不导电管(98)。该喉道部(84)具有耦合于该阴极部(56)的上游端(108)和耦合于该靶部(60)的下游端(112)。该x射线管组件(14)还包括安置在该真空罩(52)的该靶部(60)内的靶(58)，和安置在该真空罩(52)的该阴极部(56)内的阴极(54)。该阴极(54)配置成通过该喉道部(84)朝该靶(58)发射电子流(68)。

X-ray tube having transmission anode

An x-ray tube assembly includes an x-ray tube envelope, a cathode assembly and a transmission anode assembly. The transmission anode assembly includes an x-ray generation layer and an anode substrate. The x-ray generation layer may be annular and mounted on a rotating disc-shaped anode substrate or cylindrical and mounted on a rotating and/or oscillating cylindrical anode substrate.

Device, x-ray irradiation method, and manufacturing method for structure

Provided is a device capable of suppressing reduction in detection precision. The device irradiates x-rays on an object and detects transmitted x-rays that have passed through the object. The device comprises: a chamber member forming a first space; and a first supply port arranged in the first space, and which supplies a temperature-adjusted gas to at least part of an x-ray source that irradiates x-rays on the object.

Xxray tube

X-ray tube device

Provided is an X-ray tube device, in which a magnetic field generator (4) is arranged at an inclination with respect to an axis (V) perpendicular to the axis (O) of an electron beam (B) although the magnetic field generator (4) of the prior art is arranged perpendicularly to the axis (O) of the electron beam (B). Specifically, the magnetic field generator (4) is arranged at such an inclination with respect to the axis (V) perpendicular to the axis (O) of the electron beam (B) as ranges closer to the side of the cathode (2) than the electron beam (B) focused and deflected. If the magnetic field generator (4) is inclined to the side of an anode (5) backward of the side of the cathode (2), the reduced X-ray source diameter may become large. However, this X-ray source diameter can be reduced by arranging the magnetic field generator (4) within the range closer to the side of the cathode (2) than the electron beam (B).

Rotary piston X=ray emitter

The emitter has an X-ray tube (1) accommodated in a housing (3) filled with coolant (2). The X-ray tube is fixed to the housing and rotates with it. The housing is made of a material which strongly attenuates X-ray radiation. The housing is at least partially formed from electrically insulating material. The housing is mounted on hollow axles which are in fluid connection with the housing.

X-ray tube

Röntgenstrahler mit einem Strahlergehäuse (1), in dem ein Vakuumgehäuse (2) angeordnet ist und das eine Hochspannungskomponente (3) umfasst, wobei das Vakuumgehäuse (2) von einem im Strahlergehäuse (1) zirkulierendem Isoliermedium (4) umströmt wird, und wobei im Vakuumgehäuse (2) eine Kathodenbaugruppe (5) und eine Anode angeordnet sind, wobei die Kathodenbaugruppe (5) auf Hochspannung liegt und einen Emitter aufweist, der bei Zuführung von Heizstrom Elektronen emittiert, und wobei zwischen der Kathodenbaugruppe (5) und der Anode eine Potenzialdifferenz zur Beschleunigung der emittierten Elektronen anliegt, wobei in der Hochspannungskomponente (3) eine Hochspannungszuführung, ein Heiztransformator (7) und eine Strahlenschutzkomponente (8) integriert sind, dadurch gekennzeichnet, dass die Hochspannungskomponente (3) zumindest teilweise mit einem elektrisch isolierenden Vergussmaterial (9) gefüllt ist, wobei die Hochspannungskomponente (3) im Bereich der Hochspannungszuführung mit einem elektrisch isolierenden Vergussmaterial (9) und der restliche Bereich mit einem Isoliermedium gefüllt ist. X-ray emitter with an emitter housing (1) in which a vacuum housing (2) is arranged and which comprises a high-voltage component (3), the vacuum housing (2) being flowed around by an insulating medium (4) circulating in the emitter housing (1), and wherein the Vacuum housing (2) a cathode assembly (5) and an anode are arranged, wherein the cathode assembly (5) is at high voltage and has an emitter which emits electrons when a heating current is supplied, and a potential difference between the cathode assembly (5) and the anode to accelerate the emitted electrons, a high-voltage supply, a heating transformer (7) and a radiation protection component (8) being integrated in the high-voltage component (3), characterized in that the high-voltage component (3) is at least partially covered with an electrically insulating potting material (9) is filled, the high-voltage component (3) in ...

APPARATUS FOR GENERATING X-RAY RAYS WITH A HEAT TRANSFER DEVICE

Radiation generator and radiation imaging apparatus using the same

A X-ray source having the cooling and shielding function

본 발명은 냉각 및 차폐 기능이 있는 엑스레이 소스를 공개한다. 이 장치는 하나 이상의 절연 기둥을 구비하고 진공 상태에서 X-선을 방출시키는 엑스레이 발생부; 엑스레이 발생부 외곽에 형성되어 상기 엑스레이 발생부에서 방출되는 열을 냉각하는 냉각부; 및 상기 냉각부의 외곽에 형성되어 상기 X-선의 방출에 관여하는 부분 외의 영역에서 누출되는 X-선을 차폐하는 차폐부;를 구비하는 것을 특징으로 한다. The present invention discloses an x-ray source with cooling and shielding functions. The apparatus includes an X-ray generator having one or more insulating pillars and emitting X-rays in a vacuum state; A cooling unit formed outside the X-ray generating unit to cool the heat emitted from the X-ray generating unit; And a shielding portion formed at an outer side of the cooling portion to shield the X-rays leaking out of a region other than a portion involved in the emission of the X-rays.

Method and system for liquid cooling isolated x-ray transmission target

An x-ray source has a target assembly including a target, an electron source for generating electrons to impact the target, and a flight tube assembly separating the target assembly from the electron source and transporting a coolant to the target assembly. The flight tube assembly includes a flight tube interface ring, a target cartridge tube, and an electrical isolation ring between the flight tube interface ring and the target cartridge tube.

X-ray machine ray tube heat abstractor

本发明公开了一种X光机射线管散热装置，包括散热池及置于散热池中的X光机射线管，散热池上设置有进水口和出水口，散热池的出水口连通水箱的进水口，水箱的出水口连通电机泵的输入端，电机泵的输出端连通水流量计的输入端，水流量计的输出端连通单向阀的输入端，单向阀的输出端连通水流电控单元的输入端，水流电控单元的输出端连通散热池的进水口，此装置提高了工作人员的工作便利性，有效的避免了射线管长时间处于高温状态，延长了射线管的使用寿命，极大的降低了公司的运营成本。

Device for generation of x-ray radiation with a cold electron source

A device for generation of x-ray radiation has one or more cold electron sources as a cathode and at least one x-ray target as an anode that are arranged in an evacuable housing. Upon application of an electrical voltage between cathode and anode, electrons emitted from the electron source are accelerated in an electron beam onto the x-ray target. A device for reduction of the proportion of positive ions in the region of the electron source is arranged between the electron source and the x-ray target in the housing. The device exhibits a long lifespan with good focusing capability and fast modulation capability of the electron beam.

X-ray tube apparatus

Conventionally, the magnetic field generator was arranged perpendicularly to the axis of the electron beam. The magnetic field generator of this invention is arranged so as to be inclined relative to the plane perpendicular to the axis of the electron beam. Specifically, the magnetic field generator is arranged so as to be inclined relative to the plane perpendicular to the axis of the electron beam within the range in the cathode side from the focused and deflected electron beam. Inclination up to the anode side opposite to the cathode side will lead to a possibility of increasing the reduced X-ray source diameter. Thus, arranging the magnetic field generator so as to be inclined within the range in the cathode side from the electron beam may reduce the X-ray source diameter.

Computed tomography system comprising cooling system

냉각 CT 시스템이 개시된다. 개시된 냉각 CT 시스템은 갠트리부와 상기 갠트리부의 개구 영역으로 대상체를 이동시킬 수 있는 테이블을 포함하며, 상기 갠트리부는 다양한 부속품 박스를 포함할 수 있으며, 상기 부속품 박스의 적어도 일 영역에는 블레이드 요소가 형성될 수 있다. 냉각 CT 시스템은 대기 모드 및 작동 모드의 다단 냉각 방식을 포함하는 냉각 방식을 포함한다.

Cooling arrangement for x-ray emitter on rotatable gantry for computer tomograph

The x-ray emitter has an x-ray source (2) on a gantry (1) rotatable about an axis (3). The cooling arrangement has an annular heat exchanger (9) rotatable with the gantry, in thermally conducting contact with the x-ray source and containing a heat exchange surface (10). The heat exchange surface has a structure that increases the surface for heat exchange.

Rotation anode X-ray tube

There are provided an anode target which generates X-rays due to electrons e being incident, an emitter source which emits electrons e to be incident into the anode target, a ring-shaped recoil electron capturing structure which surrounds an orbit of electrons e heading from the emitter source toward the anode target, and captures electrons e emitted from the emitter source and recoiled on the anode target, and a vacuum envelop which keeps at least a periphery of the anode target, the emitter source, and the recoil electron capturing structure at a predetermined degree of vacuum, and the recoil electron capturing structure has a first member formed from strengthened copper which is exposed to the inside of the recoil electron capturing structure, and a second member formed from copper which is disposed at the outside in the radial direction of the first member.

X-ray tube cathode with reduced unintended electrical field emission

An x-ray source (10) has an evacuated tube (14). An anode (30) is disposed in the tube and includes a material (54) configured to produce x-rays in response to impact of electrons. A cathode (34) is disposed in the tube opposing the anode configured to produce electrons accelerated towards the anode in response to an electric field between the anode and the cathode. A flange (12) extends from the cathode toward the anode, and has a smaller diameter than the evacuated tube. The flange extends closer to the anode than an interface (28) between the cathode and the tube thus forming a reduced-field region between the evacuated tube and the flange.

Radiation generator

A radiation generator comprising a protective tube housing, cooling liquid and a radiation generating tube, wherein the radiation generating tube is disposed in the protective tube housing filled with the cooling liquid, characterized in that at least one flow channel is integrally molded on the protective tube housing for a cooling medium ducted via an inlet and outlet pipe and serving to cool the interior of the housing.

Stationary cathode in an X-ray tube with rotating frame

Eine Röntgenröhre (100) enthält eine stationäre Basis (106) und einen Durchgang (107) in dieser. Die Röntgenröhre (100) enthält einen Anodenrahmen (102), der eine an einem ersten Ende positionierte Anode und einen Hals (103) an einem zweiten Ende aufweist, wobei der Hals (103) sich in den Durchgang (107) hinein erstreckt, wobei der Anodenrahmen (102) eingerichtet ist, um um eine Längsachse (140) des Durchgangs (107) herum zu rotieren. Eine hermetische Dichtung (142) ist um den Hals (103) herum zwischen dem Hals und der stationären Basis (106) positioniert. An x-ray tube (100) includes a stationary base (106) and a passageway (107) therein. The x-ray tube (100) includes an anode frame (102) having an anode positioned at a first end and a neck (103) at a second end, the neck (103) extending into the passageway (107) Anode frame (102) is arranged to rotate about a longitudinal axis (140) of the passage (107) around. A hermetic seal (142) is positioned around the neck (103) between the neck and the stationary base (106).

Thermal energy storage and transfer assembly and method of making same

An apparatus includes an electron collector includes a body having an internal bore formed therethrough along a first direction and a window side having an aperture formed in a first portion thereof along a second direction different from the first direction. The apparatus also includes a cover plate having a bottom surface coupled to a second portion of the first surface of the electron collector, and an x-ray transmission window coupled to the cover plate and aligned with the aperture along the second direction, wherein a recess is formed along the second direction in one of the first portion of the first surface of the electron collector and a portion of the bottom surface of the cover plate, and wherein a gap is formed between the bottom surface of the cover plate and the first surface of the electron collector.

X-ray generator driven by pyroelectric-crystals using radiation devices

PURPOSE: A pyro-electricity crystallization x-ray generator is provided to minimize temperature deflection by irradiating a radiant heat to pyro-electricity crystallization and increasing the temperature of the pyro-electricity crystallization. CONSTITUTION: A vacuum-cooling container(50) formed into a container feature which is sealed. An X-rays permeable window is installed in the upper side of the vacuum-cooling container. Pyro-electricity crystallization(10) is perpendicularly cut in a polarization axis. A radiant heat irradiation device(30) is formed in order to surround the around the pyro-electricity crystallization. The radiant heat irradiation device irradiates a radiant heat in the pyro-electricity crystallization and radiates the pyro-electricity crystallization toward an X-rays target.

X-ray tube

An X-ray tube has a cathode, an anode target to emit X-rays, and a vacuum envelope which houses the cathode and the anode target. The vacuum envelope has a first metal member connected to the anode target, a second metal member which is connected to the first metal member and has a coefficient of thermal expansion lower than that of the first metal member, and an electrically insulating annular ceramic member connected to the second metal member and the cathode. In addition, the X-ray tube has a cooling system which is connected to the first metal member and forms a cooling passage. Furthermore, the X-ray tube has an adapter which is in contact with the first metal member, surrounds the second metal member and has a thermal conductivity higher than that of the second metal member, and a heat-transfer medium placed between the ceramic member and the adapter.

Röntgenstrahlergehäuse mit zumindest einem elektrisch leitfähigen gehäuseabschnitt

Die Erfindung betrifft ein Multiröhren-Röntgenstrahlergehäuse, eine Multiröhren-Röntgenstrahlenquelle, eine Röntgen-Einrichtung und eine Computertomographie-Einrichtung.Das erfindungsgemäße Multiröhren-Röntgenstrahlergehäuse weist- ein Gehäuse mit zumindest einer Seitenfläche,- eine Hochspannungsversorgung und- eine Kühleinrichtung mit einem elektrisch isolierenden Kühlmedium auf,wobei die Hochspannungsversorgung mehrere an der einzelnen Hochspannungszuführung parallel geschaltete Hochspannungskontakte aufweist,wobei eine erste der zumindest einen Seitenfläche einen ersten elektrisch leitfähigen Gehäuseabschnitt mit einer temperaturabhängigen elektrischen Leitfähigkeit aufweist, gekennzeichnetdurch eine Regeleinheit, welche eine Schnittstelle zum Empfang eines die elektrische Leitfähigkeit des ersten elektrisch leitfähigen Gehäuseabschnitts abbildenden Messwerts aufweist und zum Vergleichen des Messwerts mit einem Schwellwert ausgebildet ist, unddurch eine Schalteinrichtung zur Abschaltung der Hochspannung in Abhängigkeit des Vergleichsergebnisses.

X-ray tube with corrugated wall

An x-ray tube (100) includes an inner wall (114) including a target surface and an outer wall (112) disposed about the inner wall (114) and defining a gap (115) therebetween. A corrugated structure (116) is disposed in the gap (115) and is coupled to both the inner wall (114) and the outer wall (112) so as to define a plurality of channels (117) therebetween. The corrugated structure (116) is configured to allow a coolant to flow through the channels (117). An area (113) inside of the inner wall (114) is substantially maintained at a vacuum and a filament (120) is disposed in the area (113) inside of the inner wall (114). When a sufficient voltage is applied between the filament (120) and the inner wall (114), the filament (120) emits electrons directed to at least a portion of the target surface so that the target surface emits electrons.

Large surface area x-ray tube shield structure

An improved x-ray tube cooling system is disclosed. The system utilizes a shield structure that is connected between a cathode cylinder and an x-ray tube housing and is disposed between the electron source and the target anode. The shield includes a plurality of cooling fins to improve overall cooling of the x-ray tube and the shield so as to extend the life of the x-ray tube and related components. When immersed in a reservoir of coolant fluid, the fins facilitate improved heat transfer by convection from the shield to the to the coolant fluid. The cooling effect achieved with the cooling fins is further augmented by a convective cooling system provided by a plurality of fluid passageways formed within the shield, which are used to provide a fluid path to the coolant. In particular, a cooling unit takes fluid from the reservoir, cools the fluid, then circulates the cooled fluid through the fluid passageways. One or more depressions of "V" shaped cross section defined on the surfaces of the fluid passageways serve to facilitate nucleate boiling of the coolant in the passageway, and thereby materially increase the heat flux through the passageway to the coolant. Additionally, one or more extended surfaces disposed on the surfaces of the fluid passageways also facilitate a relative increase in the rate of heat transfer from the shield structure to the coolant. After flowing through the fluid passageway, the coolant is then discharged from the fluid passageways and directed over the cooling fins. In some embodiments, the fluid passageways are oriented so as to provide a greater heat transfer rate in certain sections of the shield than in other sections. Also disclosed is an improved braze joint for connecting the shield to the x-ray tube housing.

多管式x射线辐射器壳体、多管式x射线源和x射线装置

本发明涉及一种多管式X射线辐射器壳体、一种多管式X射线源、一种X射线装置和一种计算机断层扫描装置。根据本发明的多管式X射线辐射器壳体具有：‑带有至少一个侧面的壳体；‑高压供给装置；以及‑带有电绝缘的冷却介质的冷却装置，其中高压供给装置具有并联连接在单个高压输送装置上的多个高压接触部，其中至少一个侧面中的第一侧面具有第一导电壳体部段，所述第一导电壳体部段具有与温度相关的电导率，其特征在于设有调节单元，所述调节单元具有用于接收描述第一导电壳体部段的电导率的测量值的接口，并且构成用于将测量值与阈值进行比较，以及设有开关装置，所述开关装置用于根据比较结果关断高压。

X-ray tube with distributed filaments

An x-ray generating unit (100) includes an x-ray tube (130) that is substantially transparent to x-rays and that defines a vacuum therein. A cathode (110) is disposed within the x-ray tube (130) and defines a plurality of spaced apart cavities (114). An anode (120) is spaced apart from the cathode (110) and includes a material that emits x-rays when impacted by electrons. A plurality of filaments (112) is each disposed in a different one of the cavities (114) defined by the cathode (110) and each is electrically coupled to the cathode (110). Each filament (112) emits a focused electron beam (118) directed to a different predetermined spot on the anode (120) upon application of a predetermined voltage between the cathode (110) and the anode (120), thereby causing the anode to generate x-rays (122).

X-ray tube with distributed filaments

An x-ray generating unit (100) includes an x-ray tube (130) that is substantially transparent to x-rays and that defines a vacuum therein. A cathode (110) is disposed within the x-ray tube (130) and defines a plurality of spaced apart cavities (114). An anode (120) is spaced apart from the cathode (110) and includes a material that emits x-rays when impacted by electrons. A plurality of filaments (112) is each disposed in a different one of the cavities (114) defined by the cathode (110) and each is electrically coupled to the cathode (110). Each filament (112) emits a focused electron beam (118) directed to a different predetermined spot on the anode (120) upon application of a predetermined voltage between the cathode (110) and the anode (120), thereby causing the anode to generate x-rays (122).

X-ray tube with distributed filaments

X-ray tube with distributed filaments

An x-ray generating unit (100) includes an x-ray tube (130) that is substantially transparent to x-rays and that defines a vacuum therein. A cathode (110) is disposed within the x-ray tube (130) and defines a plurality of spaced apart cavities (114). An anode (120) is spaced apart from the cathode (110) and includes a material that emits x-rays when impacted by electrons. A plurality of filaments (112) is each disposed in a different one of the cavities (114) defined by the cathode (110) and each is electrically coupled to the cathode (110). Each filament (112) emits a focused electron beam (118) directed to a different predetermined spot on the anode (120) upon application of a predetermined voltage between the cathode (110) and the anode (120), thereby causing the anode to generate x-rays (122).

X-ray tube with distributed filaments

An x-ray generating unit (100) includes an x-ray tube (130) that is substantially transparent to x-rays and that defines a vacuum therein. A cathode (110) is disposed within the x-ray tube (130) and defines a plurality of spaced apart cavities (114). An anode (120) is spaced apart from the cathode (110) and includes a material that emits x-rays when impacted by electrons. A plurality of filaments (112) is each disposed in a different one of the cavities (114) defined by the cathode (110) and each is electrically coupled to the cathode (110). Each filament (112) emits a focused electron beam (118) directed to a different predetermined spot on the anode (120) upon application of a predetermined voltage between the cathode (110) and the anode (120), thereby causing the anode to generate x-rays (122).

Fluid cooled reflective x-ray source

During operation of a reflection target x-ray source, heat must be removed from many components. The electron beam must be steered to the target and may interact with structures along this path. There is also heat generated in the target itself. This can be excessive, since only a very small percentage of the electron beam's energy is transformed into x-rays. Finally, the x-rays must exit the vacuum through the window, which can also be heated both by the x-rays, reflected electrons, and radiant heat from the target. A water cooled reflective x-ray source provides for water or other fluid cooling of the centering aperture, x-ray target, and/or exit window.

用于x射线管外壳的系统、方法和设备

具有集成冷却通道(102，104)的X射线管外壳(100)，其中集成冷却通道(102，104)位于X射线管外壳(100)的壁中，通过其液体或气体冷却剂(810)进行循环，并且热量从X射线管外壳(100)传递到外部冷却器(812)。当X射线管外壳(100)形成时，集成的冷却通道(102，104)生成在X射线管外壳(100)的周界周围。由于使用油冷却剂(222)的旋转阳极X射线管(224)，以辐射方式进行的热量传递的路径从阳极(224)到玻璃嵌入物和油(222)。与玻璃嵌入物接触的油将热量从嵌入物远离传导到X射线管外壳(100)，然后其通过位于X射线管外壳(100)中的集成冷却通道(102，104)进行冷却，通过上述通道流体(810)流到外部液体冷却系统(812)。

X-ray module

An X-ray module includes a housing; an electron gun that emits an electron beam inside the housing; a target disposed inside the housing and fixed to the housing, to generate an X-ray when the electron beam is incident on the target; and a deflection unit including a permanent magnet and disposed outside the housing, to deflect the electron beam by means of a magnetic force of the permanent magnet. The deflection unit includes a heat insulating member disposed at least between the permanent magnet and the housing. A thermal conductivity of the heat insulating member is lower than a thermal conductivity of the permanent magnet.

X-ray source and method for manufacturing an x-ray source

An X-ray source ( 10 ) for generating X-rays ( 11 ) is provided. The X-ray source ( 10 ) comprises an emitter arrangement ( 12 ) for generating electrons or for generating X-rays, at least one feedthrough ( 38 ) for supplying electrical power to the emitter arrangement ( 12 ), and an insulator ( 20 ) configured for isolating an electrical potential of the at least one feedthrough ( 38 ) from a ground potential. Therein, the at least one feedthrough ( 38 ) extends at least partly through the insulator ( 20 ), and at least a part of the insulator ( 20 ) is in thermal contact with at least a part of the emitter arrangement ( 12 ). Further, the insulator ( 20 ) comprises at least one cooling channel ( 28 ) formed completely in an interior volume ( 25 ) of the insulator ( 20 ) and configured to dissipate heat from the emitter arrangement ( 12 ), wherein a distance ( 29 ) between an outer surface ( 26 ) of the insulator ( 20 ) and the cooling channel ( 28 ) is at least as large as half of a thickness ( 27 ) of the cooling channel ( 20 ).

Kathodenkopf mit Fadenschutzmerkmalen

Eine Kathodenbaugruppe, die bestimmte Merkmale enthält, die ausgelegt sind, um die Integrität eines darin enthaltenen Fadens zu schützen, wird offenbart. Insbesondere ist die Kathodenbaugruppe konfiguriert, Beschädigung an dem Faden zu verhindern, sollte er einen anderen Abschnitt der Kathodenbaugruppe versehentlich kontaktieren. Bei einem Ausführungsbeispiel wird eine Merkmale der vorliegenden Erfindung enthaltende Röntgenröhre offenbart. Die Röntgenröhre enthält eine evakuierte Hülle, die eine Kathodenbaugruppe und eine Anode enthält. Die Kathodenbaugruppe enthält einen Kopfabschnitt mit einer Kopfoberfläche. Ein Schlitz ist auf der Kopfoberfläche definiert, und ein elektronen-emittierender Faden ist in dem Schlitz enthalten. Eine Schutzoberfläche ist auf der Kopfoberfläche in der Nähe eines Zentralabschnitts des Fadens definiert. Die Schutzoberfläche besteht bei einer Ausführungsform aus Wolfram und ist konfiguriert, das Verschmelzen des Fadens mit der Schutzoberfläche zu verhindern, sollte der Faden die Schutzoberfläche versehentlich kontaktieren.

電子ビーム時定数を低減したフィラメント・アセンブリ

【課題】Ｘ線放射装置または他のフィラメント含有装置で使用するフィラメント・アセンブリ。 【解決手段】Ｘ線管は、ターゲット表面を有する陽極、および陽極に対し配置された陰極の両方を格納する真空筐体を含む。陰極は、管動作中に電子ビームを放射するフィラメント・アセンブリを備えている。フィラメント・アセンブリは、放熱板、および複数のフィラメント・アセンブリを備えている。複数のフィラメント・セグメントは、陽極のターゲット表面に衝突させる電子ビームを同時に放射するように構成されており、電気的に直列に接続されている。各フィラメント・セグメントは、放熱板に熱的に接続された第１および第２の端部と、電子を優先的に放射するようにその動作機能が変更された中心部とを備えている。 【選択図】図１

Fadenbaugruppe mit reduzierter Elektronenstrahlzeitkonstanten

Offenbart ist eine Fadenbaugruppe zur Verwendung in einer röntgenstrahlenemittierenden Einrichtung oder anderen fadenenthaltenden Einrichtung. Bei einer Ausführungsform wird eine Röntgenröhre offenbart, die eine Vakuumhülle enthält, die sowohl eine Anode mit einer Targetoberfläche als auch eine bezüglich der Anode positionierte Kathode aufnimmt. Die Kathode umfasst eine Fadenbaugruppe zum Emittieren eines Elektronenstrahls während des Röhrenbetriebs. Die Fadenbaugruppe umfasst einen Kühlkörper und mehrere Fadensegmente. Die Fadensegmente sind zur gleichzeitigen Emission eines Elektronenstrahls zum Auftreffen auf die Targetoberfläche der Anode konfiguriert und sind elektrisch in Reihe geschaltet. Jedes Fadensegment enthält einen ersten und zweiten Endabschnitt, die thermisch mit dem Kühlkörper verbunden sind, und einen zentralen Abschnitt, der mit einer modifizierten Austrittsarbeit für bevorzugte Elektronenemission konfiguriert sein kann.

Zusammengesetzter rahmen für röntgenröhren

旋转阳极型x射线管组件

一种旋转阳极型X射线管组件包括：旋转阳极型的X射线管(30)、壳体(20)、冷却液(7)、第一罩壳、X射线屏蔽体(6b)、第二罩壳、以及空气导入单元(150)。所述第一罩壳分别被设成与真空管壳(31)和所述壳体(20)之间存在间隙并包围所述真空管壳。所述X射线屏蔽体位于所述第一罩壳与所述壳体之间，并被设成与所述壳体间存在间隙。所述第二罩壳被设成与所述壳体间存在间隙并包围所述壳体，从而与所述壳体之间形成通气路径(AW)。所述空气导入单元使在所述通气路径中形成气流。

X-ray module

An X-ray module includes; a housing; an electron gun that emits an electron beam inside the housing; a target disposed inside the housing and fixed to the housing, to generate an X-ray when the electron beam is incident on the target; a permanent magnet that is disposed outside the housing and deflects the electron beam by means of a magnetic force; and a heat radiating unit having a higher thermal conductivity than a thermal conductivity of the permanent magnet and thermally connected to the permanent magnet.

Shielded X-Ray source with radiation shielding and cooling system

An X-ray source includes an X-ray tube; a radiation shielding shell enclosing the X-ray tube, the radiation shielding shell including a collimator formed integrally with it, wherein the radiation shielding shell comprises finely dispersed powder, polyester or epoxy resin and hardener; a cooler system providing oil to the X-ray tube; and an oil filled tank supplying the oil to the cooler system. There is a central shielding element shaped as a cylinder inside the radiation shielding shell and one or more end shielding elements around the X-ray tube. The central and end shielding elements are made of lead.

Mammographe avec tube a rayons x perfectionne

On prévoit de réaliser un tube à rayons X dans une enveloppe (1) métallique intégrée comportant un dispositif de protection contre les radiations, formé par l'épaisseur de l'enveloppe elle-même, un dispositif de refroidissement sous la forme d'un circuit d'air qui refroidit l'enveloppe, et un dispositif d'isolation électrique sous la forme d'un connecteur en céramique, et permettant une réalisation plus étroite. Le circuit d'air est agencé de façon à refroidir d'abord le moteur (4) de l'anode, puis la cathode (3) puis l'anode (2) elle-même. Un capteur de température est placé à proximité (21) de l'anode. On montre, quand on mesure la température à cet unique endroit, qu'on contrôle la température de l'ensemble et que la largeur hors tout est bien réduite.

X-ray emitter housing with at least one electrically conductive housing portion

A multitube X-ray emitter housing according to the invention includes a housing, a high-voltage supply and a cooling device with an electrically insulating cooling medium. The high-voltage supply has a plurality of high-voltage contacts connected in parallel on a single high-voltage supply lead. A first of at least one side surface of the housing has a first electrically conductive housing portion with a temperature-dependent electrical conductivity. The multitube X-ray emitter housing further includes: a control unit having an interface to receive a measured value representing the electrical conductivity of the first electrically conductive housing portion and to compare the measured value with a threshold value; and a switching device to switch off the high voltage based on the comparison.

Ｘ線ｃｔ装置

【課題】環状回転体及び架台カバー間の間隙を通る空気と環状回転体の内部を通り放熱器により熱交換されてから排気される空気とのうち、間隙を通る空気の流量を減らすことの可能なＸ線ＣＴ装置を提供する。 【解決手段】内部にＸ線管球４、Ｘ線検出器５及び放熱器６が収納され、放熱器６の付近に設けられた通気口１２、通気口１２に対向する位置に設けられた吸排気口１１を有する環状回転体２と、環状回転体２の周囲を覆い上部排気口７ａ、７ｂ及び下部吸排気口８〜１０を有する架台カバー７と、架台カバー７内面と環状回転体２の外周面との間の間隙１４内の排気を上部排気口７ａ，７ｂから外部へ排出するファン１５、１６と、架台カバー７の下部吸排気口８〜１０付近の間隙１４内に設けられた整流板１９、２０と、を備え、この整流板１９により、環状回転体２の内部の空間を通る空気の流量と、間隙１４を通る空気の流量とを制御する。 【選択図】図３

表面積が大きいｘ線管遮蔽体構造体

改良されたＸ線管の冷却装置が開示されている。該装置は、負圧Ｘ線管ハウジング１０７内に一体化され且つ電子源１０６と標的アノード１０４との間に配置された遮蔽体構造体１０８を利用する。遮蔽体１０８は、Ｘ線管及び関係する構成要素の寿命を引き延ばし得るようにＸ線管及び遮蔽体１０８の全体的な冷却を向上させる複数の冷却フィン１１０を有している。冷却流体のリザーバ１１４内に浸漬させたとき、フィンは、遮蔽体から冷却流体までの対流による熱伝導を向上させることを容易にする。遮蔽体内に流体通路１３１、１３２が設けられ、流体通路１３１の面に画成された１つ又は１つ以上の「Ｖ」字形断面１１１Ｂ、１１３Ｂ、１１５Ｂが通路内での冷却液の核沸騰を促進し、これにより通路を通って冷却液までの熱流束を増大させる働きをする。

Large surface area x-ray tube shield structure

An improved x-ray tube cooling system is disclosed. The system utilizes a shield structure that is connected between a cathode cylinder and an x-ray tube housing and is disposed between the electron source and the target anode. The shield includes a plurality of cooling fins to improve overall cooling of the x-ray tube and the shield so as to extend the life of the x-ray tube and related components. When immersed in a reservoir of coolant fluid, the fins facilitate improved heat transfer by convection from the shield to the to the coolant fluid. The cooling effect achieved with the cooling fins is further augmented by a convective cooling system provided by a plurality of fluid passageways formed within the shield, which are used to provide a fluid path to the coolant. In particular, a cooling unit takes fluid from the reservoir, cools the fluid, then circulates the cooled fluid through the fluid passageways. One or more depressions of "V" shaped cross section defined on the surfaces of the fluid passageways serve to facilitate nucleate boiling of the coolant in the passageway, and thereby materially increase the heat flux through the passageway to the coolant. Additionally, one or more extended surfaces disposed on the surfaces of the fluid passageways also facilitate a relative increase in the rate of heat transfer from the shield structure to the coolant. After flowing through the fluid passageway, the coolant is then discharged from the fluid passageways and directed over the cooling fins. In some embodiments, the fluid passageways are oriented so as to provide a greater heat transfer rate in certain sections of the shield than in other sections. Also disclosed is an improved braze joint for connecting the shield to the x-ray tube housing.

Large surface area x-ray tube shield structure

An improved x-ray tube cooling system is disclosed. The system utilizes a shield structure that is connected between a cathode cylinder and an x-ray tube housing and is disposed between the electron source and the target anode. The shield includes a plurality of cooling fins to improve overall cooling of the x-ray tube and the shield so as to extend the life of the x-ray tube and related components. When immersed in a reservoir of coolant fluid, the fins facilitate improved heat transfer by convection from the shield to the to the coolant fluid. The cooling effect achieved with the cooling fins is further augmented by a convective cooling system provided by a plurality of fluid passageways formed within the shield, which are used to provide a fluid path to the coolant. In particular, a cooling unit takes fluid from the reservoir, cools the fluid, then circulates the cooled fluid through the fluid passageways. One or more depressions of "V" shaped cross section defined on the surfaces of the fluid passageways serve to facilitate nucleate boiling of the coolant in the passageway, and thereby materially increase the heat flux through the passageway to the coolant. Additionally, one or more extended surfaces disposed on the surfaces of the fluid passageways also facilitate a relative increase in the rate of heat transfer from the shield structure to the coolant. After flowing through the fluid passageway, the coolant is then discharged from the fluid passageways and directed over the cooling fins. In some embodiments, the fluid passageways are oriented so as to provide a greater heat transfer rate in certain sections of the shield than in other sections. Also disclosed is an improved braze joint for connecting the shield to the x-ray tube housing.