ДВУХЦВЕТНОЕ ПИРОМЕТРИЧЕСКОЕ ИЗМЕРЕНИЕ ТЕМПЕРАТУРЫ РЕНТГЕНОВСКОГО ФОКАЛЬНОГО ПЯТНА

Изобретение относится к формированию рентгеновских изображений. Рентгеновская трубка включает в себя эмиттер, расположенный для испускания электронов на фокальное пятно на вращающемся аноде. Рентгеновская трубка также включает в себя полую трубку, расположенную для приема электромагнитного излучения с фокального пятна на одном конце полой трубке и передачи его к другому концу. Кроме того, рентгеновская трубка включает в себя два или большее количество датчиков, расположенных для обнаружения электромагнитного излучения через полую трубку. Технический результат - повышение точности определения температуры. 3 н. 9 з.п. ф-лы, 7 ил.

АНОДНЫЙ СКАНЕР С МОДУЛЯЦИЕЙ ДЛЯ КОМПЬЮТЕРНОЙ ТОМОГРАФИИ

Группа изобретений относится к области медицины. Способ реализуется системой компьютерной томографии. Система содержит анод, окружающий исследуемую область, источник электронного луча (катод), детекторную матрицу для детектирования рентгеновских лучей, сумматор для объединения сигналов, соответствующих рентгеновским лучам, и устройство реконструкции для формирования данных объемного изображения. Способ заключается во вращении электронного луча по аноду в течение множества интервалов выборки. В течение каждого интервала выборки модулируют электронный луч для формирования множества последовательных фокусных пятен. Фокусные пятна в заданном интервале выборки включают в себя поднабор фокусных пятен из предыдущего интервала выборки. Детекторная матрица производит выборку рентгеновских проекций, излучаемых каждым из множества фокусных пятен, для каждого интервала выборки. Устройство реконструкции реконструирует рентгеновские проекции для создания данных объемного изображения. Применение данной ...

АНОД РЕНТГЕНОВСКОЙ ТРУБКИ

Изобретение относится к рентгенотехнике, а более конкретно к вращающимся анодам рентгеновских трубок, применяемых в медицинской диагностике и терапии, в технических устройствах для неразрушающего контроля изделий и научных исследований для проведения рентгеноструктурного анализа материалов. Техническим результатом является увеличение срока службы и нагрузочной способности анода рентгеновской трубки. Анод состоит из мишени и основы. Предлагается граница раздела мишени и основы в зоне воздействия электронного пучка в сечении плоскостью, проходящей через ось электронного пучка, выполнять в виде эллипса, при этом полуоси эллипса выбрать так, чтобы граница раздела мишени и основы представляла собой изотерму со значением температуры, не превышающей допустимую температуру основы для максимальной мощности рентгеновской трубки. 4 з.п. ф-лы, 2 ил.

СПОСОБ ИЗГОТОВЛЕНИЯ ВРАЩАЮЩЕГОСЯ АНОДА РЕНТГЕНОВСКОЙ ТРУБКИ

Изобретение относится к электротехнике, в частности к способам изготовления вращающихся анодов рентгеновских трубок. Технический результат предложенного способа заключается в повышении стабильности и долговечности анодов при воздействии знакопеременных циклических тепловых нагрузок и высоких доз облучения, а также в увеличении мощности рентгеновских трубок. Способ включает формирование на конической поверхности анодного диска мишени из тугоплавкого металла, при этом мишень формируют отдельно в виде конического кольца путем горячей штамповки с заданным углом конусности с последующей горячей напрессовкой изготовленной мишени на всю коническую поверхность анодного диска или на фокальную дорожку с последующей термообработкой. Выбранные режимы деформационно-термической технологии обеспечивает достижение указанного технического результата. 2 з.п. ф-лы, 6 ил.

УСТРОЙСТВО РЕГУЛИРОВАНИЯ И ОПРЕДЕЛЕНИЯ СКОРОСТИ ВРАЩЕНИЯ АНОДА РЕНТГЕНОВСКОЙ ТРУБКИ

Полезная модель относится к области рентгенотехники и может быть использована при производстве и эксплуатации рентгеновских трубок. Решаемая задача - расширение диапазона регулирования скорости вращения анода рентгеновской трубки и определение скорости вращения. С этой целью для вращения и регулирования скорости вращения анода рентгеновской трубки использован инверторный преобразователь частоты, а для определения скорости вращения вокруг магнитопровода статора намотана дополнительная обмотка.

ВРАЩАЮЩИЙСЯ АНОД РЕНТГЕНОВСКОЙ ТРУБКИ

Изобретение относится к рентгенотехнике, а более конкретно к вращающимся анодам рентгеновских трубок большой мощности, применяемых в медицинской диагностике. Для увеличения срока службы и повышения надежности вращающегося анода высокомощной рентгеновской трубки за счет обеспечения равномерности нагрева подложки и снижения уровня напряжений в подложке и мишени подложка выполняется переменной по геометрическим размерам и/или материальному составу и свойствам материалов. Толщина слоя подложки H в зоне фокусной дорожки выполняется не меньшей 0,1•(E1H 2 1 /E2)0,5 и не большей 10•(E1H 2 1 /E2)0,5 , где H1 - толщина мишени, E1 и E2 - модули упругости мишени и слоя подложки соответственно, а ширина этой зоны составляет не менее величины фокусной дорожки. 6 з.п. ф-лы, 1 ил.

ВРАЩАЮЩИЙСЯ АНОД РЕНТГЕНОВСКОЙ ТРУБКИ

Использование - в рентгеновских трубках с вращающимся анодом для диагностического медицинского оборудования. Цель - расширение технологических возможностей с одновременным обеспечением благоприятных условий для балансировки. Анод содержит диск из тяжелого металла, соединенный с графитовой подложкой, в которой выполнены сквозные отверстия с впаянными в них тонкостенными гильзами. Балансировочные элементы, выполненные в виде конусов, закреплены в полости гильз так, что вершина конуса направлена в сторону открытого торца гильзы. 6 з.п. ф-лы, 2 ил.

КОМПЕНСАЦИЯ КОЛЕБАНИЙ АНОДА В РЕНТГЕНОВСКИХ ТРУБКАХ С ВРАЩАЮЩИМСЯ АНОДОМ

... 1. Система для измерения и компенсации повторяющегося отклонения (∆z) реального положения от желаемого положения фокального пятна пучка электронов (FS), причем указанный пучок электронов (EB) излучается электронным эмиттером катода рентгеновской трубки (С) в области мишени (АТ) вращающегося анодного диска рентгеновской трубки (RA), где указанная система включает в себя датчик положения (WS), адаптированный для определения повторяющегося отклонения, по меньшей мере, за один его период, элемент отклонения пучка (BD) с интегрированным устройством управления, адаптированный для отклонения указанного пучка электронов (EB) на основании результатов измерения, полученных с датчика положения (WS), таким образом, что путь фокального пятна пучка электронов описывает определенную траекторию, причем указанная система адаптирована для измерения и компенсации периодического колебания угла наклона вращающегося анодного диска (RA) рентгеновской трубки относительно идеальной плоскости вращения, которая ориентирована ...

СПОСОБ ИЗГОТОВЛЕНИЯ МЕТАЛЛИЧЕСКОЙ МИШЕНИ ДЛЯ РЕНТГЕНОВСКОЙ ТРУБКИ

Использование: при изготовлении анодов рентгеновских трубок для диагностических медицинских аппаратов. Цель: качественное бездефектное соединение вольфрамового диска с молибденовым корпусом, что повышает надежность работы рентгеновской трубки. Сущность изобретения: корпус из молибденового сплава соединяют сварко-пайкой с кольцевым диском из вольфрамового сплава при последовательно реализации трех кольцевых швов.

РЕНТГЕНОВСКАЯ ТРУБКА С ВРАЩАЮЩИМСЯ АНОДОМ

Рентгеновская трубка относится к медицинской технике, в частности к рентгеновским трубкам с вращающимся анодом на гидродинамической опоре со спиральными канавками, и может быть использована в рентгеновских диагностических аппаратах широкого профиля с излучением большой мощности. Рентгеновская трубка с вращающимся анодом содержит вакуумную камеру, в которой расположены катод и вращающийся анод, поддерживаемый цилиндрической опорой скольжения со смазкой рабочего зазора смесью легкоплавких металлов на основе галлия; на цилиндрической рабочей поверхности выполнена кольцевая канавка, полость которой каналами соединена с полостью со смазкой вне рабочего зазора, профильные спиральные канавки выполнены по обе стороны кольцевой канавки, образуя по два ряда встречно-направленных несоединяющихся канавок, причем один ряд спиральных канавок имеет выход в полость кольцевой канавки, второй ряд - к торцу опоры, на торцовых поверхностях цилиндра выполнены спиральные канавки, имеющие выход к центральному ...

БАЛАНСИРОВКА В РЕНТГЕНОВСКОЙ ТРУБКЕ

1. Рентгеновская трубка (10) с устройством (12) активной балансировки, содержащая:- вращающееся устройство анода (14);- подшипниковое устройство (20);- приводное устройство (26) для вращения устройства анода;- устройство (32) обнаружения неустойчивости; и- средство (34) активной балансировки;причем подшипниковое устройство предусмотрено в виде фиксированного подшипника вращающегося устройства анода для поддержки вращающегося устройства анода;причем устройство обнаружения неустойчивости выполнено с возможностью обнаружения неустойчивости анода;причем средство активной балансировки представляет собой электромагнитное средство балансировки, выполненное с возможностью создания магнитного поля и приложения магнитных эксцентрических сил к вращающемуся устройству.2. Рентгеновская трубка по п. 1, в которой предусмотрен блок (56) управления; и в которой средство активной балансировки управляется в соответствии с сигналами, обеспечиваемыми устройством обнаружения неустойчивости.3. Рентгеновская трубка по п. 1 или 2, в которой средство активной балансировки содержит по меньшей мере три устройства балансировки, размещенные по меньшей мере в двух различных плоскостях (60, 62), которые перпендикулярны оси (64) вращения.4. Рентгеновская трубка по п. 1 или 2, в которой приводное устройство содержит ротор (66) и статор (68); и в которой средство активной балансировки выполнено с возможностью действовать на магнитно активируемые части (70) ротора.5. Рентгеновская трубка по п. 1 или 2, в которой приводное устройство содержит ротор и статор; и в которой средство активной балансировки выполнено зацело со статором.6. Рентгеновская трубка по п. 1 или 2, в которой магнитные эксцентричности, произво РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК H01J 35/10 (11) (13) 2014 151 783 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2014151783, 06.05.2013 (71) Заявитель(и): КОНИНКЛЕЙКЕ ФИЛИПС Н.В. (NL) Приоритет(ы): (30) Конвенционный приоритет: ...

РОТОР РЕНТГЕНОВСКОЙ ТРУБКИ С ПРИМЕНЕНИЕМ МАТЕРИАЛА НА ОСНОВЕ УГЛЕРОДНОГО КОМПОЗИТА

... 1. Ротор (10) для рентгеновской трубки, содержащийвращательную структуру (12) с множеством электропроводящих элементов (14), концы которых соединены друг с другом и выполнены таким образом, что внешнее магнитное поле статора, генерируемое статором, наводит в электропроводящих элементах ток, который генерирует магнитное поле ротора для взаимодействия с магнитным полем статора;при этом, по меньшей мере, множество электропроводящих элементов изготовлено из материала на основе углеродного композита; ивращательная структура выполнена в виде цилиндрической манжеты (32) на диске (34) анода на стороне, противоположной стороне, на которой обеспечена фокальная дорожка (36).2. Ротор (10) для рентгеновской трубки, содержащийвращательную структуру (12) с множеством электропроводящих элементов (14), концы которых соединены друг с другом и выполнены таким образом, что внешнее магнитное поле статора, генерируемое статором, наводит в электропроводящих элементах ток, который генерирует магнитное поле ротора ...

Ренгеновская трубка

Узел вращающегося анода рентгеновской трубки

Изобретение относится к области рентгенотехники, а именно к рентгеновским трубкам с вран ающимся анодом. Целью изобретения является повышение мошности и долговечности рентгеновской трубки, умень шение смещения оптического фокуса трубы. В изобретении предлагается для крепления опорной втулки 6 в подшипниках 3 держателя 7 анода использовать упругие кольца 8, а торец 4 закреплять с помошью цанги Г2. Такое крепление элементов, а также наличие зазора между втулкой 11 и стенкой 14 приводят к облегчению теплового режима работы иодшипников. 3 з. п. ф-лы, 2 пл. оо ел to 9. 7 ...

Рентгеновская трубка

Рентгеновская трубка

Вращающийся анод рентгеновской трубки и способ его изготовления

Изобретение относится к рентгенотехнике , а более конкретно к вращающимся анодам рентгеновских трубок и технологии их изготовления Цель изобретения - повышение срока службы за счет повышения прочности сцепления мишени и основания анода и снижение стоимости. Для этого формируют промежуточный соединительный слой из соединения W - В - С путем нагрева прижатых друг к другу графитового основания и вольфрамовой мишени анода с нанесенной на соединяемые поверхности суспензией бора в вакууме до 1600°С с произвольной скоростью, в диапазоне 1600 - 2000°С за время 60 - 90 мин, а затем до 2200°С, причем при этой температуре производят выдержку в течение 5- 10 мин. Графитовое основание предварительно подвергают выдержке при 600 - 700°С в течение 60-90 мин. 2 с и 3 з.п. ф-лы, 1 ило i (Л ...

ROTATIONSSYMMETRISCHE ROENTGENROEHRENDREHANODE

TRAEGER FUER DREH-ANTIKATHODE VON ROENTGENROEHREN.

Verfahren zum Betrieb einer Drehanode und Drehanodenanordnung mit Energieverbrauchsoptimierung

Verfahren zum asynchronen Betrieb einer mit einer vorgebbaren Soll-Drehzahl (Fsoll) rotierenden Drehanode (4), wobei durch einen Rotor (3) eines Anodenantriebs (1) die Drehanode (4) angetrieben und durch einen Stator (2) des Anodenantriebs (1) ein Drehmoment (M) auf den Rotor (3) ausgeübt wird, gekennzeichnet durch: ein Einstellen einer den Stator (2) versorgenden Statorspannung (UStat) und einer Statorfrequenz (fStat) derart, dass der Wirkungsgrad (W) des asynchronen Betriebs bei der vorgebbaren Soll-Drehzahl (Fsoll) maximiert wird.

DREHANODEN-ROENTGENROEHRE MIT VERBESSERTEM DREHSYSTEM

METHOD OF MANUFACTURING AN ANODE DISC FOR A ROTARY-ANODE X-RAY TUBE

X-RAY DEVICE WITH AN X-RAY TUBE WITH A MAGNETIC BEARING

ROENTGENSTRAHLROEHRE.

Drehanoden-Röntgenröhre mit einem Gleitlager

Rotary anode X=ray tube

The X-ray tube has a rotary anode (1) contained within a vacuum envelope (2) and supported for rotation relative to the latter by a pair of rotary bearings (7,8), contained within a mounting sleeve (9) fitted in the end of the vacuum envelope. The mounting sleeve has a resilient element between the bearings and is pref. divided into 2 sections (9a,9b) coupled together via a number of spaced resilient element provided by spring blades.

ROENTGENROEHRE MIT DREHANODE

Roentgenroehren-Drehanoden-Kugellager

Einpoliger Röntgenstrahler

Die Erfindung betrifft einen einpoligen Röntgenstrahler mit einem Strahlergehäuse (1), in dem eine Röntgenröhre mit einem Vakuumgehäuse (2) und einem Antriebsmotor (3) angeordnet ist, wobei im Vakuumgehäuse (2) eine Kathode (4), die einen Elektronenstrahl erzeugt, und eine Drehanode (5), auf die der Elektronenstrahl in einer Brennbahn auftrifft, angeordnet sind, und wobei das Vakuumgehäuse (2) eine antriebsseitige Gehäusewand (21) und eine anodenseitige Gehäusewand (22) aufweist und die Drehanode (5) verdrehfest auf einem Anodenrohr (6) gehalten ist, das drehbar auf einem stehenden Teil (81) einer mit dem Antriebsmotor (3) gekoppelten Rotorwelle (8) gelagert ist, gekennzeichnet durch folgende Merkmale: der stehende Teil (81) der Rotorwelle (8) ist über eine ringförmige Befestigung (9) mit der anodenseitigen Gehäusewand (22) des Vakuumgehäuses (2) verbunden, das Anodenrohr (6) enthält ein Temperaturkompensationselement (10), die Lagerung (7) eines rotierenden Teils (82) der Rotorwelle (8 ...

Röntgenstrahler

Die Erfindung betrifft einen Röntgenstrahler mit einer Röntgenröhre (1), die mit ihrem Vakuumgehäuse (2) in einem Strahlergehäuse (3) angeordnet ist, wobei in dem Vakuumgehäuse (2) eine Drehanode (4) gelagert ist, deren Anodenkörper (5) verdrehfest auf einer Rotorwelle (6) befestigt ist, und mit einer Identifikationsvorrichtung (19), die erfindungsgemäß wenigstens eine Markierung (20, 21), wenigstens einen Sensor (22, 23) und wenigstens eine Signalleitung (24, 25) umfasst, wobei wenigstens eine Markierung (20, 21) auf wenigstens einem innerhalb des Vakuumgehäuses (2) rotierbaren Teil (5, 6) aufgebracht ist und bei einer Rotation ein zeitlich moduliertes Signal erzeugt, das im Strahlergehäuse (3) erfassbar und außerhalb des Strahlergehäuses (3) für eine Weiterverarbeitung verfügbar ist. Die erfindungsgemäße Lösung gewährleistet während der gesamten Lebensdauer des Röntgenstrahlers eine zuverlässige Identifikation der im Strahlergehäuse (3) angeordneten Röntgenröhre (1).

HIGH VACUUM ROTATING ANODE X-RAY TUBE

Drehbare tellerfoermige Roentgenroehrenanode aus hochbelastbarem Werkstoff

Röntgenröhre

Roentgenroehre, deren Antikathode aus einem feststehenden, gut waermeleitenden Teil besteht, um welchen sich der von den Elektronen getroffene Teil bei seiner Rotation dreht

Drehkolben-Röngtenröhre

Die Erfindung betrifft eine Drehkolben-Röntgenröhre mit einem um eine Drehachse (A) drehbar gelagerten, eine Mantelwand (5) aufweisenden Kolben (1) und einer Anode (3a bis 3d). Zur Verbesserung der Kühlung ist vorgesehen, dass die Anode (3a bis 3d) der Drehkolben-Röntgenröhre einen radial umlaufenden Abschnitt der Mantelwand (5) bildet.

Lagereinheit für Drehanoden von Röntgenröhren

Lagereinheit (1) für Drehanoden von Röntgenröhren, mit einer Welle (2) und einem Flanschelement (3), an dem eine Drehanode anbringbar ist, wobei – die Lagereinheit (1) in eine Ausnehmung innerhalb der Röntgenröhre einschiebbar und dort arretierbar ist, – die Welle (2) über ein erstes Lagerelement (4) und ein weiteres Lagerelement (5) aufgenommen ist, – das erste Lagerelement (4) und das weitere Lagerelement (5) jeweils aus einem auf der Welle (2) angebrachten Schrägkugellager (6, 9) mit einem Innenring (7, 10) und einem Außenring (8, 11) besteht, – zwischen den Innenringen (7, 10) und/oder den Außenringen (8, 11) des ersten und des zweiten Lagerelements (4, 5) mindestens ein Distanzelement (12, 13) angebracht ist.

Röntgenanode

Röntgenanode (2) mit einer Emissionsschicht (4) und einem unter der Emissionsschicht (4) angeordneten Träger (6, 50) mit Trägermaterial zum Tragen der Emissionsschicht (4), dadurch gekennzeichnet, dass das Trägermaterial ein metallisiertes Kohlefasermaterial (20, 56) mit einem gerichteten Anteil (22, 24, 26, 28, 30, 52, 54) aufweist.

High performance X-ray tube, e.g. for use in a medical computer tomography instrument, has a form locking connection between the anode plate and its funnel shaped support

High performance X-ray tube in which the connection between the anode plate (5) and its support part (6) is a form locking connection. The connection is designed so that if the anode is rotated the connection surfaces are only subjected to a pressure.

Verbesserte Lager für Röntgenröhren

Röntgenröhre und Verfahren zu deren Herstellung

Die vorliegende Erfindung bezieht sich auf eine Röntgenröhre zur Erzeugung von Röntgenstrahlung mit einer Anode (4), welche ein Phasenwechselmaterial, PCM (11), zur Kühlung umfasst, und auf ein Verfahren zur Herstellung der Röntgenröhre. Das Phasenwechselmaterial (11) ist im Anodenmaterial angeordnet und kann z.B. durch Gießen in flüssiger Form in die Anode (4) eingebracht werden.

Röntgenvorrichtung

Die Erfindung betrifft eine Röntgenvorrichtung (2) mit einem eine Röntgenröhre (6) aufweisenden Röntgenstrahler (4), einer in der Röntgenröhre (6) angeordneten Drehanode (12) und mit einem Antrieb (18) für die Drehanode (12), wobei der Antrieb (18) einen Reluktanzmotor (20) umfasst, der einen außerhalb der Röntgenröhre (6) angeordneten Stator (22) und einen innerhalb der Röntgenröhre (6) angeordneten Rotor (24) aufweist, der mit der Drehanode (12) mechanisch verbunden ist.

SCHALTUNGSANORDNUNG ZUR SPEISUNG DES ANTRIEBSMOTORS DER DREHANODE EINER ROENTGENROEHRE

Mehrgang-Spiralnutlager für eine Röntgenstrahlröhre

Eine Mehrgang-Spiralnutlagereinheit (26) zur Verwendung in einer drehenden Anoden-Röntgenstrahlvorrichtung (10) hat zumindest einen Zwischenring (32), der eine spiralig genutete innere (34) und eine spiralig genutete äußere (36) Fläche hat und zwischen einem Außengehäuse (28) und einem lagernden Innenschaft (30) angeordnet ist. Eine Galliumschicht (42, 44) ist zwischen der spiralig genuteten inneren Fläche (34) und dem lagernden Innenschaft (30) und zwischen der spiralig genuteten äußeren Fläche (36) und dem Außengehäuse (28) gehalten, um eine Schmierung für die Oberflächen des Zwischenrings (32) vorzusehen. Der Zwischenring (32) verringert die Relativgeschwindigkeit zwischen den beweglichen Bestandteilen, wobei die Wärmeerzeugung der Lagereinheit (26) für eine vorbestimmte Anoden-Drehgeschwindigkeit verringert wird. Dieses ermöglicht höhere Geschwindigkeiten des Ziels (14) und daher eine höhere Fokussierpunktenergie, die im Vergleich zu den herkömmlichen Kugellager-Gestaltungsformen für ...

Improvements in and relating to electric discharge devices

... 503,305. R÷ntgen-ray tubes; induction motors. BRITISH THOMSON-HOUSTON CO.; Ltd. Nov. 14, 1938, No. 33075. Convention date, Nov. 13, 1937. [Class 39 (i)] [Also in Group XXXV] In X-ray tubes of the type having a rotating target, the motor for driving the target is of the induction type and comprises a light cylinder of copper &c. supported by bearings from a stationary shaft and surrounding a stationary body of magnetic material. In the arrangement described, the rotating anode 9 is carried by a sleeve 21 which is mounted on a stationary shaft 12 by means of spaced ballbearings 17'which are preferably made of the alloy described in Specification 489,477, [Group II]. The motor for driving the anode is of the induction'type and consists of a cylinder 20 of copper or other good electrically conducting non-magnetic material, a body 26 of magnetic material of low reluctance keyed to the stationary shaft 12 within the cylinder, and means outside the envelope 1 for producing a rotating magnetic ...

Improvements in or relating to x-ray tubes

... 602,750. Magnetic clutches. WATKINSON, E. J. W. July 16, 1945, No. 18160. [Class 35] [Also in Group XL (a)] The drive for the rotating target b of an X-ray tube consists of a bar magnet mounted on a shaft k of insulating material and driven by a motor, in combination with a diametrically magnetized disc e mounted on the spindle c of the target. The spindle is mounted in bearings d in a water-jacket casing f. According to the Provisional Specification both the driving and driven members are magnetized discs.

METHOD OF MANUFACTURING ROTARY ANODES FOR USE IN X-RAY TUBES

... 1308679 Making anodes; welding by pressure PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 5 Nov 1970 [8 Nov 1969] 52715/70 Headings B3A and B3R A rotary anode for an X-ray tube is made by heating in a non-oxidizing atmosphere an anode portion 6, Fig. 1, consisting mainly of tungsten and a support portion 1 mainly of molybdenum, and subjecting the portions to an impact which joins them together at their contacting machines surfaces, the resulting assembly of increased diameter then being stress-relieved by annealing. Sintered tungsten starting material may be used from which a wafer is sawn and then rolled to increase its density. A circular disc 6 is then cut which is ground and/or polished on at least one side. Molybdenum for the support 1 contains at least one constituent capable of raising the recrystallization temperature, e.g. titanium, zirconium or carbon, or of reducing the recystallization rate, e.g. potassium silicate. A known alloy may be used having the following percentages ...

Improvements relating to the metallic lubrication of bearings

... 717,081. Bearing linings. NEWTON VICTOR, Ltd. June 16,1952 [June 18, 1951], No. 15117/52. Drawings to Specification. Class 12(1) [Also in Group XXXVI] Ferrous bearings are provided with a lubricating coating by electroplating first with silver then with indium or alternatively with silver and indium simultaneously (see Group XXXVI). The invention is particularly applicable to ball bearings for a rotatable member within an evacuated housing such as an X-ray tube.

An anode plate for an x-ray tube

At least the electron impact surface of the anode plate of an X-ray tube is made of an alloy consisting of at least 65% W, up to 12% Os and 0-25% other refractory metals. The alloy may also contain 0-10% Re.

ROTARY-ANODE X-RAY TUBE WITH MAGNETIC BEARING

Improvements in electric discharge tubes with rotary anodes

... 418,794. Discharge apparatus. MULLER AKT.-GES., C. H. F., 24, R÷ntgenstrasse, Hamburg, Germany. March 7, 1934, No. 7294. Convention date, March 16, 1933. [Class 39 (i).] An electric discharge tube having a directed electron beam is provided with a rotatory anode having closely spaced grooves extending perpendicular to the direction of motion of the anode, the walls of the grooves forming the active surface. In the example shown the copper anode 1 has an active surface 3, a conical frustum of tungsten, covered with corrugations so as to resemble a bevel wheel. From two to five corrugations are preferably provided per focus-width. The corrugations may be folds in a thin sheet produced by pressing or other means.

ROTARY ANODE X-RAY TUBES

... 1294625 X-ray tubes SIEMENS AG 19 April 1971 [28 Feb 1970] 22770/71 Heading H1D The rotary anode of an X-ray tube comprises a number of parts which are relatively movable on differential thermal expansion. In Fig. 2 the anode comprises four sectors (of which three, 9, 11 and 12 are shown) which are clamped together between an upper plate 16 and a lower molybdenum plate 24 which is provided with a rim 27 extending into an annular groove 28 in the sectors. Each sector comprises a molybdenum body 26 provided on its upper surface with tungsten-rhenium target portions 13 and 14 and on its lower surface with reinforcing ribs 29. Shoulders 21 and 22 on adjacent sectors prevent electrons from passing through the gaps between sectors.

Improvements in or relating to x-ray tubes

... 813,883. X-ray tubes. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 3, 1957 [May 8, 1956], No. 14176/57. Class 39(1). A rotary-anode X-ray tube 5 mounted in an oil-filled casing 1 has its stator 7, 8 embedded in a resin cast 9. The cast has a smooth surface, so that no air bubbles are trapped in the oil. The resin may contain 50 per cent. by volume of quartz, which increases the heat dissipation. The tube is supported in the casing by a wall 13 of insulating material, which can also have an extended section 10 for supporting the stator. The parts 9, 10 and 13 may be formed as a single casting.

MONOCHROMATIC X-RAY GENERATOR

... 1478318 X-ray tubes MACHLETT LABORATORIES Inc 3 Sept 1974 [4 Sept 1973] 38530/74 Heading H1D An X-ray generator includes a rotating target 38 of width many times its depth and emitting X-radiation from the side opposite to electron incidence, the target being orientated so that only glancing angle X-rays are emitted through window 26 in opaque housing 24. The increased distance of travel through the inclined target enhances absorption of brehmsstrahlung radiation and improves monochromaticity. Residual soft X-rays may be attenuated by a window filter. The electron beam is incident on the external surface of the target in Fig. 2 (not shown), and the X-rays are orthogonal to the rotating target axis in Fig. 3 (not shown). Emissions are discussed in relation to Figs. 4-6 (not shown) for Ce and Mo. The target may be 10-40 Á thick and at 70-85 degrees to the window. Target 38 may be formed by Rh diffusion at 2500‹ C. into graphite member 30. The graphite matrix allows greater electron penetration ...

INERTIA FRICTION WELDING PROCESS FOR MAKING AN ANODE ASSEMBLY

ROTATING-ANODE X-RAY TUBE

... 1469932 Automatic control of speed NATIONAL RESEARCH DEVELOPMENT CORP 23 Oct 1974 [1 Nov 1973] 50841/73 Heading G3R A rotating anode x-ray tube wherein the x-rays are extracted in a direction nearly parallel to the axis of rotation, comprises an anode in the form of a wheel 2 with a uniformly serrated rim, the electron beam being scanned across the rim. The frequency, phase and waveform relationships are discussed and are such that the spot will appear stationary when viewed in a direction lying in a plane passing through the axis of rotation and making with the axis an angle, e.g. 4 degrees, whose tangent equals the serration depth/the length of scan. The scanning waveform may be triangular for a V-shaped serration, e.g. a 90 degrees V-shape serration in a Cu block, the pitch being twice the radial depth of 1 mm, or a more nearly sinusoidal waveform for a radiused channel section to avoid overheating at the point of scan reversal. Fig. 3 includes sensor 18 monitoring shaft rotation, its ...

ROTATING ANODE FOR A ROENTGENROEHRE AND PROCEDURE FOR YOUR PRODUCTION

DREHANODE FUER EINE ROENTGENROEHRE

ANODE FOR A ROENTGENROEHRE AND PROCEDURE FOR THEIR PRODUCTION

ROTATING ANODE FOR ROENTGENROEHREN

ANODE DISK FROM GRAPHITE FOR A ROENTGENROEHRE WITH ROTARY ANODE

ROENTGENROEHRENANODE MIT OXIDBESCHICHTUNG

In an X-ray anode, in particular a rotary anode having a parent body consisting of a refractory material containing carbon, the anode is provided with an oxidic top coating containing a homogeneously fused phase outside the focal spot or the focal track to improve the heat radiation. Situated between the parent body and the oxidic top layer is a two-layer interlayer containing a layer of molybdenum and/or tungsten and a layer of Al2O3 containing 1 -я30я% by weight of TiO2. It is only this interlayer which makes it possible to fuse the oxidic top layer satisfactorily to form a homogeneous phase. In addition, the ageing resistance of the thermal emission coefficient is substantially improved.

ROASTING GENE ROTATING ANODE WITH SURFACE COATING

PROCEDURE FOR THE SELECTIVE SEPARATION OF A LAYER OF HIGH-MELTING METAL ON A WORKPIECE FROM GRAPHITE, IN PARTICULAR FOR THE PRODUCTION OF ANODES FOR ROENTGENROEHREN

VERBUNDKOERPER AUS GRAPHIT UND HOCHSCHMELZENDEM METALL

DREHANODENROENTGENROEHRE

VERFAHREN ZUM HERSTELLEN EINES KREISFÖRMIGEN RÖNTGENRÖHRENTARGETS

VERBUNDKOERPER AUS GRAPHIT UND HOCHSCHMELZENDEM METALL

TARGETANORDNUNG FÜR EINE RÖNTGENRÖHRE UND VERFAHREN ZUR HERSTELLUNG DERSELBEN

RÖNTGENRÖHRENTARGETS AUS EINER MIT EINER HOCHFESTEN OXIDDISPERSION VERSTÄRKTEN MOLYBDÄNLEGIERUNG

RÖNTGENANODE UND VERFAHREN ZUR HERSTELLUNG DERSELBEN

RÖNTGENRÖHRENTARGETANORDNUNG UND VERFAHREN ZUR ERHÖHUNG DER FESTIGKEIT DERSELBEN

An x-ray tube target assembly 16 provided. The target assembly 16 includes a target plate element 18 having an impact surface 24 , a target rear surface 30 , an inner target bore 22 , and an outer target circumference 38 . The target plate element 18 defines a target plate depth 32 between the impact surface 24 and the target rear surface 30 . The target rear surface 30 is formed such that the target plate depth 32 tapers from an increased target plate depth 34 at the inner target bore to a decreased target plate depth 36 at the outer target circumference 38 . The target assembly 16 further includes a graphite base element 28 having a base upper surface 42 and a base rear surface 44 . The base upper surface 42 is formed to mate with the target rear surface 30.

ANODE TARGET ARRANGEMENT FOR USE IN A ROTATING ANODE X-RAY TUBE

PYROMETRI TWO-COLORIMETRY OF THE TEMPERATURE OF A ROENTGEN FOCUS

RÖNTGENANODE UND VERFAHREN ZUR HERSTELLUNG DERSELBEN

An x-ray anode for use in an x-ray tube is provided. The x-ray anode includes a substrate material, a target material, and one or more graded coefficient of thermal expansion material layers. The target material is coupled to the one or more graded coefficient of thermal expansion material layers and the graded coefficient of thermal expansion material layers are coupled to the substrate material. A method of making the x-ray anode is also provided.

RÖNTGENBILDGEBUNGSSYSTEM, RÖNTGENAPPARAT, RÖNTGENTARGET UND VERFAHREN ZUM HERSTELLEN DERSELBEN

In some embodiments, an X-ray target includes a target cap formed of a substrate material and a focal track layer of emitting material, and at least one of the substrate material and the emitting material has a density greater than about 95.0% of theoretical density. In some embodiments, a method of manufacturing an X-ray target includes forming an intermediate target cap form of substrate material and a focal track layer of emitting material, and compacting the intermediate target cap form by application of gas pressure at elevated temperature to form a final target cap form, and at least the substrate material is dense substrate material having a final density greater than an intermediate density or the emitting material is dense emitting material having a final emitting material density greater than an intermediate emitting material density.

SYSTEME, VERFAHREN UND EINRICHTUNGEN FÜR EIN KOMPOSIT-RÖNTGENTARGET

SCREEN STRUCTURE FOR X-RAY TUBE WITH LARGE SURFACE

X-RAY TUBE AND VERFARHEN FOR THE REGULATION OF FOCUS CHARACTERISTICS

RÖNTGENRÖHRENANODE MIT ERHÖHTER ERFASSUNG

Anode target assembly for rotating anode X-ray tube of, e.g. computed tomography system, includes graphite disk, molybdenum alloy sheet and substrate, and alloy brazes

An anode target assembly (60) includes graphite disk (42); molybdenum alloy sheet (40); molybdenum alloy substrate (48); and first and second alloy brazes (44, 50) for respectively coupling the disk and sheet, and the sheet and substrate.

ANODE TARGET ARRANGEMENT FOR USE IN A ROTATING ANODE X-RAY TUBE

RONTGENANODE

VERFAHREN ZUR HERSTELLUNG EINER ROENTGENROEHRENDREHANODE

DREHANODE FUER ROENTGENROEHREN

Rotary target for medical X=ray tube - has stabilised molybdenum alloy substrate to reduce distortion (NL 28.1.80)

Rotary target for X-ray tubes has a substrate of Mo alloyed with a stabilising amt. (0.05-10 wt.%) of Fe, Si, Co, Ta, Nb, Hf and/or stable metal oxide and opt. also with an inert carbide. Distortion is prevented, making the target suitable for use in medical X-ray tubes. Pref. the Mo is alloyed with 0.5-5 (1-2)% Y2O3; 0.05-0.3 (0.08-0.125)% Co or Si; 1.25-2.25% Ta, Nb or Hf; or 0.05-0.3 (0.0825)% Fe and 0.5-5 (1)% Y2O3. The target is provided with an electron bombardment zone of W alloyed with a small amt. (0.5-35 wt.%) of Re.

DREHANODEN-ROENTGENROEHRE

RONTGENDREHANODE UND VERFAHREN ZU DEREN HERSTELLUNG

PROCEDURE FOR THE PRODUCTION ROENTGENDREHANODE

PROCEDURE FOR THE PRODUCTION OF A LAMINATED ROTATING ANODE FUR RONTGENROHREN

ANTICATHODE FUR RONTGENROHREN

COMPOUND ROTATING ANODE FUER ROENTGENROEHREN

ROTARY ANODE FUR HOCHLEISTUNGSRONTENROHREN AND PROCEEDING TO YOUR PRODUCTION

ROTATE-CASH ANODE FUR RONTGENROHREN

TARGET ARRANGEMENT FOR AN X-RAY TUBE AND PROCEDURE FOR THE PRODUCTION THE SAME

PROCEDURE FOR ASSEMBLING A ROTARY X-RAY TUBE STRUCTURE

X-RAY TUBE ROTATING ANODE

Рентгеновская трубка с составным анодом

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 ...

X-ray system with superconducting anode

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.

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

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.

FOCAL TRACK OF A ROTATING ANODE HAVING A MICROSTRUCTURE

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 ...

X-Ray Tube with Rotating Anode Aperture

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 ...

ROTARY X-RAY ANODE

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 ...

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

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 ...

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

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 ...

X-RAY SYSTEMS AND METHODS INCLUDING X-RAY ANODES

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 ...

RADIOGRAPHIC IMAGING APPARATUS AND METHOD

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 ...

RADIATION EMISSION DEVICE

A radiation emission device is provided. The radiation emission device may include a cathode configured to emit an electron beam and an anode configured to rotate on a shaft. The anode may be situated to receive the electron beam from the cathode. The radiation emission device may further include a rotor configured to drive the anode to rotate. The rotor may be mechanically connected to the shaft. The radiation emission device may further include a sleeve configured to support the shaft via at least one bearing. The cathode, the anode, and the rotor may be enclosed in an enclosure that is connected to the sleeve. At least a portion of the sleeve may reside outside the enclosure. 120-. (canceled)21. A radiation emission device , comprising:a cathode configured to emit an electron beam;an anode configured to rotate on a shaft, the anode being situated to receive the electron beam;a rotor configured to drive the anode to rotate, the rotor being mechanically connected to the shaft;a sleeve configured to support the shaft via at least one bearing; andan enclosure configured to enclose the cathode, the anode, and the rotor, wherein the enclosure is connected to the sleeve, and at least a portion of the sleeve resides outside of the enclosure, wherein the rotor and the sleeve are arranged along an axial direction of the shaft such that the rotor is not radially covering the sleeve.22. The radiation device of claim 21 , wherein the rotor resides between the anode and the shaft along the axial direction of the shaft.23. The radiation emission device of claim 21 , further comprising:a stator; andcoils mounted on the stator, wherein the coils generate a magnetic field to drive the rotor to rotate, and the magnetic field forms an oblique angle with the axial direction of the shaft.24. The radiation emission device of claim 23 , the stator and the rotor are arranged along the axial direction of the shaft.25. The radiation emission device of claim 23 , wherein the oblique angle ...

X-RAY APPARATUS AND A CT DEVICE HAVING THE SAME

A two dimensional array distributed x-ray apparatus of this disclosure comprises: a vacuum box which is sealed at its periphery, and the interior thereof is high vacuum; a plurality of electron transmitting units arranged in one plane in a two dimensional array on the wall of the vacuum box; an anode having targets corresponding to the plurality electron transmitting unit arranged in parallel with the plane of the plurality of electron transmitting units in the vacuum box; a power supply and control system having a high voltage power supply connected to the anode, a filament power supply connected to each of the plurality of the electron transmitting units, a grid-controlled apparatus connected to each of the plurality of electron transmitting units, a control system for controlling each power supply; wherein the anode comprises: an anode plate made of metal and parallel to the upper surface of the electron transmitting unit; a plurality of targets arranged on the anode plate and disposed corresponding to the positions of the electron transmitting unit, the bottom surface of the target is connected to the anode plate and the upper surface of the target has a predetermined angle with the anode plate. 1. An x-ray apparatus , characterized in that , comprises:a vacuum box which is sealed at its periphery, and the interior thereof is high vacuum;a plurality of electron transmitting units arranged in one plane in a two dimensional array on the wall of the vacuum box;an anode arranged in parallel with the plane of the plurality of electron transmitting units in the vacuum box.2. The x-ray apparatus according to claim 1 , characterized in that claim 1 , further comprises:a power supply and control system having a high voltage power supply connected to the anode, a filament power supply connected to each of the plurality of the electron transmitting units, a grid-controlled apparatus connected to each of the plurality of electron transmitting units, a control system for ...

High temperature annealing in x-ray source fabrication

The present disclosure relates to multi-layer X-ray sources having decreased hydrogen within the layer stack and/or tungsten carbide inter-layers between the primary layers of X-ray generating and thermally-conductive materials. The resulting multi-layer target structures allow increased X-ray production, which may facilitate faster scan times for inspection or examination procedures.

X-RAY DIAGNOSTIC APPARATUS AND X-RAY HIGH-VOLTAGE GENERATOR

According to one embodiment, an X-ray diagnostic apparatus includes an X-ray tube, a driver, a supporter, and processing circuitry. The X-ray tube including a rotating anode. The driver rotates the rotating anode. The supporter supports the X-ray tube in an inclinable manner. The processing circuitry acquires information indicating an attitude of the supporter and controls the driver based on information indicating the acquired attitude. 1. An X-ray diagnostic apparatus , comprising:an X-ray tube including a rotating anode;a driver that rotates the rotating anode;a supporter that supports the X-ray tube in an inclinable manner; and acquire information indicating an attitude of the supporter; and', 'control the driver based on information indicating the acquired attitude., 'processing circuitry configured to2. The X-ray diagnostic apparatus according to claim 1 , wherein 'control the driver based on a rotation frequency associated with the attitude.', 'the processing circuitry is further configured to3. The X-ray diagnostic apparatus according to claim 1 , wherein 'control the driver based on a voltage waveform associated with the attitude.', 'the processing circuitry is further configured to4. The X-ray diagnostic apparatus according to claim 1 , further comprising:a memory that stores the attitude and a parameter relating to the control of the driver in association with each other.5. The X-ray diagnostic apparatus according to claim 1 , wherein collect sounds generated from the X-ray tube; and', 'determine whether or not a result of the collection exceeds a threshold value; and', 'reset a parameter relating to the control of the driver based on a result of the determination., 'the processing circuitry is further configured to6. The X-ray diagnostic apparatus according to claim 5 , further comprising:a memory that stores the attitude and the reset parameter in association with each other.7. The X-ray diagnostic apparatus according to claim 1 , wherein the processing ...

X-RAY ANODE

An x-ray anode for generating x-radiation includes a carrier body and a first emission layer and at least one second emission layer, which generate x-radiation when they are impinged by electrons. The emission layers are separated by an intermediate layer on one side of the carrier body and are arranged a distance apart in a central direction of the x-ray anode. 115-. (canceled)16. An x-ray anode for generating x-radiation , the x-ray anode comprising:a carrier body;a first emission layer and at least one second emission layer configured to generate x-radiation upon being impinged by electrons;an intermediate layer disposed to separate said first and second emission layers from one another, and said first and second emission layers being disposed on one side of said carrier body at a spacing distance from one another in a central direction of the x-ray anode.17. The x-ray anode according to claim 16 , wherein the spacing distance between said emission layers in the central direction is at least 0.5 mm.18. The x-ray anode according to claim 16 , wherein said first emission layer and said at least one second emission layer are congruent in a viewing direction along the central direction in a region of impingement of the electrons.19. The x-ray anode according to claim 16 , wherein claim 16 , at least in certain portions claim 16 , the spacing distance between said first emission layer and said second emission layer is substantially constant.20. The x-ray anode according to claim 16 , wherein at least one of said first emission layer and said second emission layer is formed of a material selected from the group consisting of tungsten claim 16 , rhenium and a tungsten alloy.21. The x-ray anode according to claim 20 , wherein at least one of said first emission layer and said second emission layer is formed of a tungsten-rhenium alloy.22. The x-ray anode according to claim 16 , wherein said first emission layer and said at least one second emission layer are formed of a ...

BALANCING X-RAY OUTPUT FOR DUAL ENERGY X-RAY IMAGING SYSTEMS

An X-ray source () for generating X-ray radiation of first and second energy spectra is proposed, wherein the X-ray intensity imbalance between the first and second energy spectra is reduced as compared to conventional X-ray sources. The reduction of the X-ray intensity imbalance is achieved by configuring a smaller electron impact angle () onto the anode () when the higher tube voltage is applied as compared to when the lower tube voltage is applied. 1. An X-ray source for generating X-ray radiation of first and second energy spectra , the X-ray source comprising:a cathode for emitting an electron beam;an anode for converting the electron beam at least partly into X-ray radiation;electron optics configured to control an impact angle at which electrons of the electron beam impinge onto the anode;a power supply configured to apply first and second tube voltages between the cathode and the anode, the second tube voltage being higher than the first tube voltage; anda control circuitry operably coupled to the electron optics;wherein the control circuitry is configured to control the electron optics such that the electrons of the electron beam impinge at a first mean impact angle onto the anode when the first tube voltage is applied and such that the electrons of the electron beam impinge at a second mean impact angle onto the anode when the second tube voltage is applied; andwherein the second mean impact angle is smaller than the first mean impact angle.2. The X-ray source according to claim 1 , wherein the second mean impact angle at which electrons of the electron beam impinge onto the anode is less than 70 degrees.3. The X-ray source according to claim 1 ,wherein the electrons of the electron beam impinge onto a first surface section of the anode when the first tube voltage is applied and onto a second surface section of the anode when the second tube voltage is applied; andwherein the first surface section overlaps with the second surface section.4. The X-ray ...

X-Ray Micro-Beam Production and High Brilliance X-Ray Production

An x-ray micro-beam radiation production system is provided having: a source of accelerated electrons, an electron focusing component configured to focus the electrons provided by the source, and a target which produces x-rays when electrons impinge thereon from the source. The electron focusing component is configured to focus the electrons provided by the source such that they impinge at a focal spot having a width δ formed on a surface of the target. The focusing component is configured to move the electron beam relative to the target such that the focal spot moves across the target surface in the width direction, and/or the target is movable relative to the focusing component such that the focal spot moves across the target surface in the width direction, the surface velocity of the focal spot across the target surface in the width direction being greater than vwhere:formula (I), k, ρ and c denoting respectively the heat conductivity, the density and the heat capacity of the target material, and d denoting the electron penetration depth in the target material. 2. The system of claim 1 , wherein the width δ of the focal spot is less than 100 μm.3. The system of claim 1 , wherein the target is cylindrical claim 1 , and the target rotates around its axis to move the target surface relative to the focusing component.4. The system of claim 1 , wherein the electrons are accelerated with an acceleration voltage of at least 40 kV.515.-. (canceled)17. The method of claim 16 , wherein the produced characteristic x-rays of a spectral line of the target material at 60 keV may have a spatial coherence length of at least 5 μm at 1 m distance from the target.18. The method of claim 16 , wherein the produced characteristic x-rays of a spectral line of the target material at 60 keV may have a photon flux of at least 1·10mmsat 1 m distance from the target.19. A method for phase contrast imaging claim 16 , having the steps of:{'claim-ref': {'@idref': 'CLM-00016', 'claim 16'}, ' ...

X-RAY TUBE

Provided is an X-ray tube. The X-ray tube includes a cathode electrode, an anode electrode vertically spaced apart from the cathode electrode, an emitter on the cathode electrode, a gate electrode disposed between the cathode electrode and the anode electrode, the gate electrode including an opening at a position corresponding to the emitter, and a spacer provided between the gate electrode and the anode electrode. The spacer includes an insulator and conductive dopants doped in the insulator. 1. An X-ray tube comprising:a cathode electrode;an anode electrode vertically spaced apart from the cathode electrode;an emitter on the cathode electrode;a gate electrode disposed between the cathode electrode and the anode electrode, the gate electrode comprising an opening at a position corresponding to the emitter; anda spacer provided between the gate electrode and the anode electrode,wherein the spacer comprises an insulator and conductive dopants doped in the insulator.2. The X-ray tube of claim 1 , wherein the spacer has a volume resistivity of about 10Ω·cm or more and less than about 10Ω·cm.3. The X-ray tube of claim 1 , wherein the insulator comprises aluminum oxide (AlO) claim 1 , and the conductive dopants comprise titanium dioxide (TiO).4. The X-ray tube of claim 1 , wherein the spacer comprises more than about 1.64 wt % and less than about 2.44 wt % of the conductive dopants.5. The X-ray tube of claim 1 , wherein the insulator comprises first metal oxide having a resistivity of about 10Ω·cm or more claim 1 , and the conductive dopants comprise second metal oxide having a resistivity of about 10Ω·cm or less.6. The X-ray tube of claim 1 , wherein a voltage applied to the anode electrode is about 70 kV or more.7. The X-ray tube of claim 1 , wherein the gate electrode further comprises a protrusion extending toward the anode electrode.8. The X-ray tube of claim 1 , wherein the spacer comprises more than about 1.64 wt % and less than about 2.44 wt % of titanium oxide ( ...

System and method for reducing relative bearing shaft deflection in an x-ray tube

An X-ray tube is provided. The X-ray tube includes a bearing configured to couple to an anode. The bearing includes a stationary member, a rotary member configured to rotate with respect to the stationary member during operation of the X-ray tube, and a support feature configured to minimize bending moment along a surface of the stationary member to reduce deflection of the stationary member relative to the rotary member due to radial loads during operation of the X-ray tube.

Bearing unit for rotary anodes of x-ray tubes

A bearing unit for rotary anodes of x-ray tubes includes a shaft and a flange element to which a rotary anode can be attached, wherein: the bearing unit can be inserted into a cutout within the x-ray tube and locked in place; the shaft is mounted via a first bearing element and a further bearing element; the first bearing element and the further bearing element each consists of an angular ball bearing mounted on the shaft and having an inner ring and an outer ring; and at least one spacer element is mounted between the inner rings and/or the outer rings of the first and the second bearing element.

BREAST TOMOGRAPHY SYSTEM

A breast tomography system includes an X-ray generation tube including a reflection type target, an X-ray detector facing the X-ray generation tube with an imaginary rotation axis placed therebetween, and a gantry that stores the X-ray generation tube and the X-ray detector and that includes a front panel on the subjectee side. A tube axis of the X-ray generation tube is disposed to extend along the front panel. 1. A breast tomography system comprising:an X-ray generation tube including a reflection type target and an electron emission source, the reflection type target being irradiated with an electron and generating an X-ray, the electron emission source irradiating the reflection type target with an electron beam;an X-ray detector that detects the X-ray emitted from the reflection type target and transmitted through a breast;a gantry having a storing space in which the X-ray generation tube and the X-ray detector are stored and a front panel between the storing space and a subjectee;a rotation drive unit that rotates the X-ray generation tube around an imaginary rotation axis; anda breast insertion portion configured to be communicated through an opening provided in the front panel,wherein the X-ray generation tube is secured to the rotation drive unit to allow a tube axis of the X-ray generation tube to extend along the front panel.2. The breast tomography system according to claim 1 ,wherein an angle between the tube axis and the front panel is not smaller than −20 degrees and not larger than +20 degrees.3. The breast tomography system according to claim 2 ,wherein the tube axis is disposed substantially parallel to the front panel.4. The breast tomography system according to claim 1 ,wherein the X-ray generation tube has, in an outside dimension, a length shorter in a radial direction of the X-ray generation tube than in a direction in which the tube axis extends.5. The breast tomography system according to claim 1 ,wherein the tube axis extends toward an ...

PROCESS FOR TREATING AND RECEPTACLE FOR CONFINING AN ANODE FOR PRODUCING X-RAYS

Process for treating and receptacle for confining an anode, wherein the anode is placed in a confining receptacle that envelops this anode while leaving uncovered an annular coating zone of a frontal face of this anode, which is defined by an aperture of the receptacle; in order to carry out a least one operation for treating said annular coating zone, implementing at least one treating gas. 1. A process for treating a disc-shaped anode for producing x-rays , comprising:placing the anode in a confining receptacle that comprises a platen on which the anode rests, an annular wall protruding with respect to the platen and extending around the peripheral wall of the anode, and a cover placed on a frontal face of the anode, so that said annular wall and said cover define therebetween an annular aperture defining an uncovered annular zone on the frontal face of the anode placed in the receptacle; andcarrying out a least one operation for treating said annular zone, implementing at least one treating gas.2. The process according to claim 1 , comprising: leaving at least one internal space between the anode and the confining receptacle.3. The process according to claim 2 , wherein said internal space is placed facing an edge of at least one braze joint.4. The process according to claim 2 , comprising: carrying out said treating operation after a powdered sacrificial protective substance has been introduced into said internal space.5. The process according to claim 2 , comprising: making a shielding gas flow through said at least one internal space during said treating operation.6. The process according to claim 1 , wherein said anode comprises two superposed rings having therebetween a binding layer and wherein a local surface of the anode including at least one edge of said binding layer defines said internal space.7. A confining receptacle able to contain a disc-shaped anode for producing x-rays claim 1 , comprising:a platen on which one of the radial faces of the anode ...

X-RAY SOURCE AND THE USE THEREOF AND METHOD FOR PRODUCING X-RAYS

An x-ray source in which monochromatic x-rays can be produced is provided. A method for producing X-rays and to the use of the x-ray source for x-raying bodies is also provided. A metallic film is arranged in a housing as a target which is bombarded with the electron beam. As a result, the metallic film is excited for emitting monochromatic x-rays, the relatively thin-walled target being modified such that the intended use for producing monochromatic x-rays is no longer possible. Therefore, advantageously, the production device can be pivoted for producing the electron beam as well as being able to wind the target on rollers. 1. An X-ray source having a housing in which a target is located that emits X-rays when being bombarded with an electron beam , wherein a metal foil is the target , and the electron beam and the target are movable relative to one another.2. The X-ray source as claimed in claim 1 , wherein the metal foil is made of at least one of a light metal and a plurality of light metals.3. The X-ray source as claimed in claim 1 , wherein the metal foil comprises at least one of a lanthanide claim 1 , tungsten claim 1 , molybdenum claim 1 , and an alloy of at least two thereof.4. The X-ray source as claimed in claim 1 , wherein an anode is in a form of a tape claim 1 , which is unwound from a first roller and wound onto a second roller.5. The X-ray source as claimed in claim 4 , wherein the first roller and the second roller are housed in vacuum locks of the housing.6. The X-ray source as claimed in claim 4 , wherein the second roller is mechanically coupled to a drive that is attached on an outside of the housing.7. The X-ray source as claimed in claim 1 , wherein a production device for the electron beam is of a pivotable design.8. The X-ray source as claimed in claim 1 , wherein the metal foil has a thickness of 0.1 μm to 0.5 μm.9. A method for producing X-rays claim 1 , in which a target in a housing of an X-ray source is bombarded with an electron beam ...

TILTABLE OR DEFLECTABLE ANODE X-RAY TUBE

A x-ray tube comprising an anode sealed to a flexible coupling. The flexible coupling can allow the anode to deflect or tilt in various directions to allow an electron beam to impinge upon various selected regions of an anode target. 1. An x-ray tube comprising:a. an electron emitter, a flexible coupling with a coupling axis, and a window hermetically sealed to an enclosure;b. an anode attached to the flexible coupling;c. the electron emitter configured to emit electrons from the electron emitter to the anode;d. the anode including a target configured to produce x-rays in response to impinging electrons from the electron emitter;e. the anode spaced-apart from the window by a gap through which the x-rays emitted from the target travel to the window;f. the anode being selectively tiltable in all directions from the coupling axis outward to a circle around the coupling axis to selectively position a region of the target material in the electron beam.2. The x-ray tube of claim 1 , wherein the anode extends through a core of the flexible coupling.3. The x-ray tube of claim 1 , wherein a first end of the flexible coupling is hermetically sealed to the enclosure and a second end of the flexible coupling is attached to the anode.4. The x-ray tube of claim 1 , wherein the target material faces the electron emitter and the window in all directions in which the anode is tilted.5. The x-ray tube of claim 1 , wherein the electron emitter is disposed at one end of the enclosure claim 1 , the anode is disposed at an opposite end of the enclosure claim 1 , and the window is a side-window disposed along a side of the enclosure between the electron emitter and the anode.6. The x-ray tube of claim 1 , wherein the electron emitter is disposed at one end of the enclosure claim 1 , the window is disposed at an opposite end of the enclosure claim 1 , and the anode is disposed along a side of the enclosure between the electron emitter and the window.7. The x-ray tube of claim 1 , wherein ...

Aligned grain structure targets, systems, and methods of forming

Some embodiments include an x-ray system, comprising: a support structure including a mounting surface; a target attached to the support structure on the mounting surface; wherein the target has a grain structure having a first dimension along an axis perpendicular to the mounting surface is longer than a longest dimension along any axis parallel to the mounting surface.

ANODE FOR AN X-RAY TUBE OF A DIFFERENTIAL PHASE CONTRAST IMAGING APPARATUS

A differential phase contrast imaging (DPCI) apparatus and an anode for an X-ray tube of such DPCI apparatus are proposed. The anode () comprises a rotatable anode disk () with a focal track region () close to a circumference () thereof. Upon impact of accelerated electrons, an X-ray () is emitted from a focal spot (). The anode () further comprises a ring-like modulating absorption grid () fixedly connected to the anode disk (). This modulating absorption grid () comprises wall portions () of an X-ray absorbing material and slits () between neighboring wall portions (). Spacings between neighboring slits () are smaller than a width wof the focal spot (), for example smaller than 100 μm, preferable less than 20 μm, and the slits () have a width of less than 50 μm, preferably less than 10 μm. Upon rotation of the anode (), the modulating absorption grid () may serve as a source grid in the DPCI apparatus, such that the generated electron beam () is periodically modulated. Accordingly, in such DPCI apparatus, a phase-shift grid and a phase analyzer grid may be stationary thereby avoiding a risk of positioning inaccuracies e.g. upon moving of the components of the DPCI apparatus during X-ray imaging. 1. Anode for an X-ray tube , comprising:an anode disk comprising a circular focal track region being adapted to, upon impact of accelerated electron, emit X-rays in an emission direction transverse to an impacting direction of the electrons;a ring-like modulating absorption grid;wherein the modulating absorption grid encloses the focal track region;wherein the modulating absorption grid comprises wall portions of X-ray absorbing material, the wall portions being arranged such as to absorb X-rays emitted from the focal track region in the emission direction;{'sub': 's', 'wherein the modulating absorption grid comprises slits between neighboring wall portions, the slits being arranged along a circumferential direction of the modulating absorption grid at spacings (s) of less ...

X-Ray Micro-Beam Production and High Brilliance X-Ray Production

An x-ray micro-beam radiation production system is provided having: a source of accelerated electrons, an electron focusing component configured to focus the electrons provided by the source, and a target which produces x-rays when electrons impinge thereon from the source. The electron focusing component is configured to focus the electrons provided by the source such that they impinge at a focal spot having a width δ formed on a surface of the target. The focusing component is configured to move the electron beam relative to the target such that the focal spot moves across the target surface in the width direction, and/or the target is movable relative to the focusing component such that the focal spot moves across the target surface in the width direction, the surface velocity of the focal spot across the target surface in the width direction being greater than vwhere: formula (I), k, ρ and c denoting respectively the heat conductivity, the density and the heat capacity of the target material, and d denoting the electron penetration depth in the target material. 2. The system of claim 1 , wherein the width δ of the focal spot is less than 100 μm.3. The system of claim 1 , wherein the target is cylindrical claim 1 , and the target rotates around its axis to move the target surface relative to the focusing component.4. The system of claim 1 , wherein the electrons are accelerated with an acceleration voltage of at least 40 kV.5200. An x-ray micro-beam radiation production system () having:{'b': '201', 'a source of accelerated electrons ();'}{'b': '202', 'an electron focusing component () configured to focus the electrons provided by the source;'}{'b': '205', 'a target () which produces x-rays when electrons impinge thereon from the source; and'}{'b': 212', '301, 'a collimator () having one or more micro-beam forming apertures () which collimate the produced x-rays into one or more respective micro-beams, the, or each, micro-beam forming aperture having a given ...

RADIATION EMISSION DEVICE

A radiation emission device is provided. The radiation emission device may include a cathode configured to emit an electron beam and an anode configured to rotate on a shaft. The anode may be situated to receive the electron beam from the cathode. The radiation emission device may further include a rotor configured to drive the anode to rotate. The rotor may be mechanically connected to the shaft. The radiation emission device may further include a sleeve configured to support the shaft via at least one bearing. The cathode, the anode, and the rotor may be enclosed in an enclosure that is connected to the sleeve. At least a portion of the sleeve may reside outside the enclosure. 1. A radiation emission device , comprising:a cathode configured to emit an electron beam;an anode configured to rotate on a shaft, the anode being situated to receive the electron beam;a rotor configured to drive the anode to rotate, the rotor being mechanically connected to the shaft;a sleeve configured to support the shaft via at least one bearing; andan enclosure configured to enclose the cathode, the anode, and the rotor, wherein the enclosure is connected to the sleeve, and at least a portion of the sleeve is immersed in a cooling medium.2. The radiation emission device of claim 1 , wherein the at least a portion of the sleeve resides outside of the enclosure.3. The radiation emission device of claim 1 , wherein the at least one bearing transfers heat to the cooling medium through the sleeve.4. The radiation emission device of claim 1 , wherein the cooling medium is in a liquid state or a gaseous state.5. The radiation emission device of claim 1 , wherein the enclosure is immersed in the cooling medium.6. The radiation emission device of claim 1 , further comprising:a stator; andcoils mounted on the stator, wherein the coils generate a magnetic field to drive the rotor to rotate, and the magnetic field forms an oblique angle with the axial direction of the shaft.7. The radiation ...

X-RAY DETECTION

Rotating anode X-ray tubes degrade over time because of the action of the electron beam altering the surface of the focal spot area of a rotating anode. This causes a degradation in a resulting object image, when the source is used in an imaging application. An X-ray tube housing assembly is discussed which allows the correction of such effects. In particular, an additional beam of the X-radiation, which is not used for imaging, may be used to correct such effects. 1. An X-ray tube housing assembly operable to provide a signal the X-ray tube housing assembly comprising:an X-ray tube generating X-radiation from a focal spot;a reference filter; anda reference detector; anda controller;wherein the X-radiation comprises a main portion, and a reference portion, wherein the main portion is distinct from the reference portion;{'sub': min,MAIN', 'min,REF', 'max,MAIN', 'max,REF, 'b': '104', 'wherein the main portion and the reference portion are between a minimum (α, α) and a maximum (α, α) take-off angle, being angles of elevation from a vertex at the focal spot (), subtended by a base plane;'}{'sub': min,REF', 'min,MAIN', 'max,REF', 'max,MAIN, 'wherein the minimum take-off angles of the reference portion and the main portion (α, α) are equal to each other, and the maximum take-off angles of the reference portion and the main portion are equal to each other (α, α);'}wherein the reference filter is configured to filter the reference portion before detection of the reference portion by the reference detector;wherein the reference detector is configured to detect the reference portion to provide a reference signal; andwherein the controller is configured to calculate a signal, based on the reference signal.2. X-ray tube housing assembly according to claim 1 , wherein the X-ray tube housing assembly comprises an X-ray housing with a reference X-ray window and a main X-ray window claim 1 , so that claim 1 , in operation claim 1 , the reference X-ray window provides a reference ...

ROTATING-ANODE BEARING AND A ROTATING ANODE FOR AN X-RAY TUBE AND A METHOD FOR MANUFACTURING A ROTATING-ANODE BEARING FOR AN X-RAY TUBE

The disclosure relates to a rotating-anode bearing for an X-ray tube 1. A rotating-anode bearing for an X-ray tubecomprising a rotor shaft extending along a longitudinal axis from a first axial end to a second axial end and supported to be rotatable about the longitudinal axis; whereinthe rotor shaft has an anode holder in the area of the first axial end; andthe anode holder comprises a flange which has a larger diameter than at least an adjacent section of the rotor shaft;whereinthe rotor shaft together with the flange is made as an integrally forged part.2. The rotating-anode bearing according to claim 1 , wherein the flange forms the greatest diameter of the rotor shaft.3. The rotating-anode bearing according to claim 2 , wherein the diameter of the flange is at least 1.2 or 1.5 times claim 2 , in particular twice claim 2 , the diameter of the adjacent section of the rotor shaft or of all other sections of the rotor shaft.4. The rotating-anode bearing according to claim 1 , wherein in each of the area of the first axial end and the area of the second axial end at least one antifriction bearing is provided and the rotor shaft forms a bearing inner ring of the antifriction bearings on which rolling elements of the antifriction bearings roll; anda surface of the rotor shaft is hardened at least in the area of tracks of the rolling elements or overall.5. The rotating-anode bearing according to claim 1 , wherein the rotor shaft is austenitized claim 1 , or through-hardened by austenitizing in combination with quenching claim 1 , at least in an inner core.6. A rotating anode for an X-ray tube claim 1 ,comprising a rotor and a stator enclosing the rotor at a distance in the circumferential direction, wherein the rotor and the stator interact electromagnetically with each other, in such a manner that the rotor can be made to rotate by applying an electromagnetic field by means of the stator, wherein the rotor has a cup-shaped configuration, encloses an antifriction-borne ...

PERIODIC MODULATION OF THE X-RAY INTENSITY

The present invention relates to modulating a generated X-ray beam. In order to provide an increased, i.e. faster, periodic modulation of the X-ray intensity, an anode disk () for a rotating anode in an X-ray tube for modulating a generated X-ray beam is provided, the anode disk comprising a circumferential target area () with a target surface area, a focal track centre line (), and a beam-dump surface area. The target surface area is provided such that, when being hit by an electron beam, X-rays for X-ray imaging can be generated; and the beam-dump surface area is provided such that, when being hit by an electron beam, no useful X-rays for X-ray imaging can be generated. The target surface area comprises a plurality of target portions (), and the beam-dump surface area comprises a plurality of beam-dump portions (). The target portions and the beam-dump portions are arranged along the focal track centre line such that a centre of a focal spot, in which X-ray radiation is generated, is located on the focal track centre line. Further, the structures on both sides of the focal track centre line are arranged such that same radiation intensities are provided on the both sides when being hit by a homogenous electron beam. Additionally it is provided that at least a part of the target surface area comprises target portions and beam-dump portions in an alternating manner in the direction of the focal track centre line. 1. An anode disk for a rotating anode in an X-ray tube for modulating a generated X-ray beam , comprising a circumferential target area , the target area having:a target surface area;a focal track centre line; anda beam-dump surface area;wherein the target surface area is provided such that, when being hit by an electron beam, X-rays for X-ray imaging can be generated;wherein the beam-dump surface area is provided such that, when being hit by an electron beam, no useful X-rays for X-ray imaging can be generated;wherein the target surface area comprises a ...

DEVICE COMPRISING AN ANODE FOR GENERATING X-RAY RADIATION

An anode for generating X-radiation having a holder and a target layer held by the holder, the target layer comprising a middle section and an edge section, is provided. The anode is provided for being exposed to an electron beam directed at the middle section of the target layer. The edge section is arranged laterally next to the middle section in relation to the direction of the electron beam. Furthermore, the edge section is thicker than the middle section in the direction of the electron beam. 1. An anode for generating x-ray radiation , comprising;a holder; anda target layer held by the holder, the target layer comprising a central portion and an edge portion,wherein the anode is provided to be exposed to an electron beam directed onto the central portion of the target layerwherein the edge portion is arranged laterally next to the central portion in relation to a direction of the electron beam;wherein the edge portion has a greater thickness in the direction of the electron beam than the central portion.2. The anode as claimed in claim 1 , wherein the edge portion is raised over the central portion in a direction opposite to the direction of the electron beam.3. The anode as claimed in claim 1 , wherein the edge portion is arranged around the central portion in a ring-shaped manner.4. The anode as claimed in claim 1 , wherein the target layer is comprised of a uniform material.5. The anode as claimed in claim 1 , wherein the target layer is comprised of a material with an atomic number of between 42 and 74.6. The anode as claimed in claim 5 , wherein the target layer is comprised of tungsten.7. The anode as claimed in claim 1 , wherein the central portion has a thickness of between 50 nm and 10 μm.8. The anode as claimed in claim 1 , wherein the central portion has a diameter of between 1 mm and 20 mm perpendicular to the direction of the electron beam.9. A device for generating x-ray radiation claim 1 , comprising a cathode for emitting an electron beam and ...

FOCUSING STRUCTURES WITH NON-RECTILINEAR FOCUSING APERTURES

An example embodiment includes a cathode assembly. The cathode assembly includes a cathode head, a filament, a focusing structure, and a non-rectilinear focusing aperture. The cathode head defines a filament slot. The filament is positioned in the filament slot that is capable of emitting electrons by thermionic emission. The focusing structure is positioned at least partially between the filament and an anode. The non-rectilinear focusing aperture is defined in the focusing structure. The non-rectilinear focusing aperture is configured to shape an emission profile of electrons emitted by the filament. 1. A cathode assembly comprising:a cathode head that defines a filament slot;a filament positioned in the filament slot that is capable of emitting electrons by thermionic emission;a focusing structure positioned at least partially between the filament and an anode; anda non-rectilinear focusing aperture defined in the focusing structure, the non-rectilinear focusing aperture being configured to shape an emission profile of electrons emitted by the filament.2. The cathode assembly of claim 1 , wherein the non-rectilinear focusing aperture includes at least one curved edge that is oriented along a longitudinal dimension of the filament.3. The cathode assembly of claim 1 , wherein the non-rectilinear focusing aperture includes:two linear edges oriented substantially perpendicular to a longitudinal dimension of the filament; andtwo curved edges oriented along the longitudinal dimension of the filament.4. The cathode assembly of claim 3 , wherein the two curved edges are defined according to radii of curvature that include substantially equivalent magnitudes and substantially equivalent directions.5. The cathode assembly of claim 3 , wherein the two curved edges are defined according to radii of curvature that include substantially equivalent magnitudes and substantially opposite directions.6. The cathode assembly of claim 1 , wherein the cathode head defines a second ...

X-ray tube and anode target

According to one embodiment, an X-ray tube including an electron emission source which emits an electron, an anode target which comprises a target layer emitting an X-ray by the electron from the electron emission source, and a substrate supporting the target layer and composed from a carbide-strengthened molybdenum alloy, an evacuated outer surrounding envelope which contains the electron emission source and the anode target, a diffusion barrier layer which is integrally formed with the substrate by a powder metallurgy method on a part of a top surface of the substrate and is composed of a high-melting-point metal lacking of carbon-element content compared with carbon-element content in the substrate, and a thermal radiation film which is formed on at least a part of a top surface of the diffusion barrier layer and composed of metallic oxide.

X-RAY GENERATOR AND X-RAY ANALYZER

Provided is an X-ray generator having: an anode that faces a cathode which generates electrons; a plurality of X-ray generation zones; a casing housing the cathode and the anode; an anode support body for supporting the anode; an air cylinder for producing advancing and retreating movement of the anode support body with respect to the casing; and a stopper device that halts the movement of the anode support body when the anode support body moves in a direction approaching the casing. The stopper device has a rotating plate equipped with a section that enters and exits from between the anode support body and the casing due to rotation, a motor for driving the same, and a plurality of stop members provided in a peripheral section of the rotating plate and having mutually different heights. 1. An X-ray generator , comprising:a cathode for generating electrons;an anode provided facing the cathode, and equipped with a plurality of X-ray generation zones which are lined up adjacently to one another;a casing for housing the cathode and the anode in the interior thereof, and integrated with the cathode;an anode support body for supporting the anode;driving means for driving the anode support body in such a way that the anode support body and the casing undergo relative advancing and retreating movement; andstopper means for stopping motion of the anode support body when the anode support body and the casing move in a direction of approaching one another;the stopper means comprising:a mobile platform equipped with a section that enters and exits from between the anode support body and the casing,a mobile platform drive means for driving the mobile platform, and a plurality of stop members of mutually different heights provided in the entering and exiting section of the mobile platform.2. The X-ray generator according to claim 1 , wherein the mobile platform is provided in such a way as to be able to move in a direction closer towards or away from the casing claim 1 , in a ...

X-RAY GENERATOR AND X-RAY ANALYZER

An X-ray generator including a cathode, an anode provided with two X-ray generation zones, a casing in which the cathode and anode are accommodated, two air cylinders for causing the anode to move, two linear guides for guiding the movement of the anode, and a bellows serving as a seal member. The air cylinders and the linear guides are provided at different positions on a surface orthogonal to a center axis of the bellows. The air cylinders and the linear guides are provided uniformly in relation to the center axis. 1. An X-ray generator comprising:a cathode for generating electrons;an anode provided facing the cathode, and provided with at least two X-ray generation zones lined up adjacent to one another;a casing that has an interior space for accommodating the cathode and the anode and that is integral with the cathode;a plurality of driving means for causing the anode to move with respect to the casing;a plurality of guiding means for guiding the movement of the anode with respect to the casing; anda seal member for keeping the interior space of the casing airtight, the center axis of the seal member extending in a direction parallel to the direction in which the two or more X-ray generation zones are lined up;wherein the plurality of driving means are provided to different positions in the surface orthogonal to the center axis of the seal member;the plurality of driving means are provided uniformly in relation to the center axis of the seal member;the plurality of guiding means are provided to different positions in the surface orthogonal to the center axis of the seal member; andthe plurality of guiding means are provided uniformly in relation to the center axis of the seal member.2. The X-ray generator according to claim 1 , wherein the plurality of driving means are equidistant from one another with respect to the center axis of the seal member claim 1 , and provided at equiangular intervals from one another about the center axis.3. The X-ray generator ...

PROCESS FOR PRODUCING A HIGH-TEMPERATURE-RESISTANT COMPOSITE BODY

A high-temperature-resistant composite body is formed by joining over an area of a first, nonmetallic section via a bonding solder layer to a second, metallic section composed of Mo, an Mo-based alloy, W or a W-based alloy. A first arrangement composed of the first section, a first Zr solder and an intermediate layer is firstly soldered together in a first soldering step. A second arrangement of the resulting partial composite body, a second solder adjoining the intermediate layer and the second section is subsequently soldered together in a second soldering step. The intermediate layer at least 90 atom % of at least one of the elements Ta, Nb, W. The second solder is formed by precisely one material selected from Ti, Ti-based solder combination, V-based solder combination, Zr or Zr-based solder combination and it melts at a lower temperature than the first Zr solder in the second arrangement. 115-. (canceled)16. A process for producing a high-temperature-resistant composite body , the process comprising:A) producing a first assembly of a first, nonmetallic section, a first Zr solder, and an intermediate layer in sequence, the intermediate layer being formed to at least 90 atom % of one or more of the elements selected from the group consisting of Ta, Nb, and W;B) heating the first assembly in a first soldering step to melt the Zr solder but not the intermediate layer and to obtain a partial composite body;C) producing a second assembly of the partial composite body, a second solder adjoining the intermediate layer of the partial composite body and a second, metallic section in sequence, where the second section is composed of a metal selected from the group consisting of Mo, a Mo-based alloy, W, and a W-based alloy, and where the second solder is formed by precisely one material selected from the group consisting of Ti, a Ti-based solder combination, a V-based solder combination, Zr and a Zr-based solder combination, and the second solder configured to melt at a ...

ROTARY X-RAY ANODE AND PRODUCTION METHOD

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. 1. 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 a tungsten-rhenium alloy having a rhenium proportion in a range of 5-10% by weight; andwherein, in a 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 and having a hardness of ≧350 HV 30.2. The rotary X-ray anode according to claim 1 , wherein said at least one portion of said focal track has claim 1 , in a direction perpendicular to a focal track plane claim 1 , 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.3. The rotary X-ray anode according to claim 1 , 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, 'sub': (222)', '(310), 'TC/TC≧5.'}4. The rotary X-ray anode according to claim 1 , wherein the at least one portion of said focal track is present in a partially recrystallized structure.5. The rotary X-ray anode according to claim 4 , wherein:crystal grains ...

HYBRID IMAGING APPARATUS AND METHODS FOR INTERACTIVE PROCEDURES

An imaging system includes an x-ray assembly having one or more x-ray sources configured to be energized at multiple positions. A control program energizes the one or more x-ray sources in a programmed sequence and controls the timing of the sequence. 1. An imaging system comprising:an x-ray assembly aimed at an imaging region of a patient, the x-ray assembly configured to be energizable to emit ionizing radiation from one or multiple different spatial positions toward the imaging region; andcontrol hardware to energize the x-ray assembly at predetermined times each at one or more of the spatial positions,wherein a first mode of operation comprises energizing the x-ray assembly one or more times from a first spatial position toward the imaging region of the patient,a second mode of operation comprises energizing the x-ray assembly multiple times each from a different one of the spatial positions, andwherein the control hardware is configured to switch an operating mode of the imaging system between the first and second modes during one medical image examination.2. The system of claim 1 , further comprising a digital x-ray detector in digital communication with the imaging system claim 1 , the detector to capture and store a plurality of radiographic images of the imaging region of the patient in response to operating the imaging system in the second mode of operation claim 1 , whereby the plurality of images are used to reconstruct a tomographic image of the imaging region of the patient.3. The system of claim 2 , wherein the detector comprises one or more stored radiographic images of the imaging region of the patient captured in response to operating the imaging system in the first mode of operation claim 2 , whereby the one or more stored radiographic images of the imaging region of the patient captured in response to operating the imaging system in the first mode of operation are used together with the plurality of images captured in the second mode to ...

X-ray source target

In one embodiment, an X-ray source includes a source target configured to generate X-rays when impacted by an electron beam. The source target includes one or more thermally conductive layers; and one or more X-ray generating layers interleaved with the thermally conductive layers, wherein at least one X-ray generating layer comprises regions of X-ray generating material separated by thermally conductive material within the respective X-ray generating layer.

X-RAY TUBE HAVING NON-EVAPORABLE GETTER

The present invention relates to an X-ray tube with non-evaporable getters disposed therein for maintaining a degree of vacuum sufficient to operate the X-ray tube. The present invention provides a fixed-anode X-ray tube and a rotating-anode X-ray tube in which non-evaporable getters are disposed. The X-ray tubes, even when rated power is introduced without an aging process, can perform gas adsorption sufficiently and stably during operation, despite gases that can be generated by the filament and the cathode focusing cap and gases that can be generated by the target. 1. An X-ray tube comprising:an outer bulb;a cathode focusing cap fixedly mounted inside the outer bulb and provided with a filament;an anode an end of which is mounted inside the outer bulb and the other end of which is protruding from the outer bulb so as to be outside the outer bulb, the anode being provided with a target to which electron beam generated by the filament is to be collided; andan anode shielding unit provided near the anode, the anode shielding unit being provided with a radiation window that can shield the target and irradiate X-rays generated by the target, wherein the anode shielding unit is provided with non-evaporable getters for gas adsorption.2. The X-ray tube of claim 1 , wherein the anode shielding unit is provided with non-evaporable getters for gas adsorption by providing a gettering structure in the form of a band or cylinder claim 1 , the structure having gettering materials disposed on one or both sides thereof as a porous structure claim 1 , and mounting the gettering structure to an inner circumferential surface or an outer circumferential surface of the anode shielding unit.3. The X-ray tube of claim 1 , wherein the anode shielding unit is provided with non-evaporable getters for gas adsorption by disposing gettering materials on an inner circumferential surface or an outer circumferential surface of the anode shielding unit.4. An X-ray tube comprising:an outer bulb;a ...

METHOD AND APPARATUS FOR ACQUIRING PLURALITY OF X-RAY FOCUSES

A method and apparatus of acquiring a plurality of focal spots for X-rays. The method includes radiating an electron beam from a cathode of a magnetic field generating apparatus toward a movable anode of the magnetic field generating apparatus, and irradiating a target with an X-ray that is produced from the radiated electron beam by the anode. The anode comprises an inclined side in which a part of the inclined side protrudes, and the plurality of focal spots for X-rays are acquired based on the radiated electron beam and the inclined side. 1. A method of acquiring a plurality of focal spots for X-rays , the method comprising:radiating an electron beam from a cathode of a magnetic field generating apparatus toward a movable anode of the magnetic field generating apparatus; andirradiating a target with an X-ray that is produced from the radiated electron beam by the anode,wherein the anode comprises an inclined side in which a part of the inclined side protrudes, and the plurality of focal spots for X-rays are acquired based on the radiated electron beam and the inclined side.2. The method of claim 1 , whereinthe movable anode is rotatable at a variable speed, andwherein the inclined side of the anode is configured to face a direction in which the electron beam is radiated.3. The method of claim 2 , wherein the protruding inclined side comprises a plurality of protruding inclined sides arranged at predetermined intervals.4. The method of claim 3 , wherein a part of the inclined side is a non-protruding side; andwherein a height of the protruding inclined side is greater than a height of the non-protruding inclined side of the anode.5. The method of claim 4 , wherein the protruding inclined side comprises at least two protruding inclined sides that have different heights.6. The method of claim 1 , wherein the radiating of the electron beam comprises radiating the electron beam from the cathode to the anode at a fixed angle.7. The method of claim 3 , further ...

X-RAY EMITTER AND METHOD FOR COMPENSATING FOR A FOCAL SPOT MOVEMENT

An X-ray emitter includes an anode rotatably mounted arranged inside a vacuum housing. It can be set into rotation by an electric drive. In the region of a focal spot, the anode can be exposed to an electron beam emitted by a cathode. According to an embodiment of the invention, a control unit is configured to activate an electromagnetic deflection unit that deflects the electron beam as a function of at least one operating parameter of the electric drive such that a movement of the focal spot, caused by electromagnetic fields of the electric drive, can be at least partly compensated for. An embodiment of the invention further relates to a method for compensating for a focal spot movement when X-ray emitters in operation. 1. An X-ray emitter , comprising:a vacuum housing;a cathode, arranged inside the vacuum housing;an anode, arranged inside the vacuum housing, at least the anode being rotatable, the anode being configured to be set into rotation by an electric drive and being exposable, in a region of a focal spot, to an electron beam emitted by a cathode; andan electromagnetic deflection unit, activatable by a controller, to deflect the electron beam as a function of at least one operating parameter of the electric drive, to at least partially compensate for a movement of the focal spot caused by electromagnetic fields of the electric drive.2. The X-ray emitter of claim 1 , wherein the anode is designed as a rotating anode claim 1 , rotatably mounted inside the vacuum housing.3. The X-ray emitter of claim 1 , wherein the vacuum housing is rotatably mounted and is configured to be set into rotation by the electric drive claim 1 , wherein the cathode and the anode are non-rotatably connected to the vacuum housing.4. The X-ray emitter of claim 1 , wherein the at least one operating parameter of the electric drive includes at least one of a stator current amplitude and a stator current phase position.5. The X-ray emitter of claim 1 , further comprising:a measuring ...

Field assisted sintering of x-ray tube components

A system and method for x-ray tube components is disclosed. The method of fabricating an x-ray tube component includes providing a powder into an electrically conductive die constructed to have a cavity shaped as the x-ray tube component being fabricated and simultaneously applying a mechanical pressure and an electric field to the die so as to cause sintering of the powder and thereby fabricate the x-ray tube component, wherein the electric field applied to the die directly passes through the die to the powder, so as to generate heat internally within the powder responsive to the applied electric field.

FABRICATION METHODS AND MODAL STIFFINING FOR NON-FLAT SINGLE/MULTI-PIECE EMITTER

An electron emitter assembly includes a plurality of electron emitters, and a removable structure connected to, and fixing a positional relationship among, individual ones of the plurality of electron emitters. A method of assembling an electron emitter assembly includes connecting individual ones of a plurality of electron emitters together with a removable structure, and fixing a positional relationship among the individual ones of the plurality of electron emitters. 1. A method of assembling an electron emitter assembly , comprising:connecting individual ones of a plurality of electron emitters together with a removable structure; andfixing a positional relationship among the individual ones of the plurality of electron emitters.2. The method of claim 1 , wherein the removable structure comprises one or more ligaments connected among the individual ones of the plurality of electron emitters.3. The method of claim 1 , wherein the removable structure comprises a substrate supporting the individual ones of the plurality of electron emitters.4. The method of claim 1 , comprising removing at least a portion of the removable structure by an ablation process.5. The method of claim 1 , comprising removing at least a portion of the removable structure by a separation process.6. The method of claim 1 , comprising retaining at least a portion of the removable structure.7. The method of claim 1 , wherein the positional relationship among the individual ones of the plurality of electron emitters is planar.8. The method of claim 1 , wherein the positional relationship is an out of plane relationship among the individual ones of the plurality of electron emitters.9. The method of claim 8 , comprising forming the out of plane relationship among the individual ones of the plurality of electron emitters by applying a bend to the removable structure.10. The method of claim 1 , comprising retaining at least a portion of the removable structure to provide a current path among the ...

FABRICATION METHODS AND MODAL STIFFINING FOR NON-FLAT SINGLE/MULTI-PIECE EMITTER

An electron emitter assembly includes a plurality of electron emitters, and a removable structure connected to, and fixing a positional relationship among, individual ones of the plurality of electron emitters. A method of assembling an electron emitter assembly includes connecting individual ones of a plurality of electron emitters together with a removable structure, and fixing a positional relationship among the individual ones of the plurality of electron emitters. 1. An electron emitter assembly comprising:a plurality of electron emitters; anda removable structure connected to, and fixing a positional relationship among, individual ones of the plurality of electron emitters.2. The electron emitter assembly of claim 1 , wherein the removable structure comprises one or more ligaments connected among the individual ones of the plurality of electron emitters.3. The electron emitter assembly of claim 1 , wherein the removable structure comprises a substrate supporting the individual ones of the plurality of electron emitters.4. The electron emitter assembly of claim 1 , wherein at least a portion of the removable structure is removable by an ablation process.5. The electron emitter assembly of claim 1 , wherein at least a portion of the removable structure is removable by a separation process.6. The electron emitter assembly of claim 1 , wherein at least a portion of the removable structure is retained.7. The electron emitter assembly of claim 1 , wherein the positional relationship among the individual ones of the plurality of electron emitters is planar.8. The electron emitter assembly of claim 1 , wherein the positional relationship is an out of plane relationship among the individual ones of the plurality of electron emitters.9. The electron emitter assembly of claim 8 , wherein the out of plane relationship among the individual ones of the plurality of electron emitters is effected by a bend applied to the removable structure.10. The electron emitter assembly ...

EMITTER AND X-RAY TUBE

According to one embodiment, an emitter comprise a base portion including an electron emission surface from which electrons are emitted, a pair of leg portions applying a voltage to the electron emission surface, and a rib portion formed by bending an edge of the base portion to a side opposite to the electron emission surface, on at least a part of an outline of the electron emission surface. 1. An emitter comprising:a base portion including an electron emission surface from which electrons are emitted;a pair of leg portions applying a voltage to the electron emission surface; anda rib portion formed by bending an edge of the base portion to a side opposite to the electron emission surface, on at least a part of an outline of the electron emission surface.2. The emitter of claim 1 , whereina slit for forming a current path on the electron emission surface is formed at the base portion.3. The emitter of claim 2 , whereinthe slit is formed along the rib portion to divide the rib portion.4. The emitter of claim 3 , whereinthe pair of leg portions are provided at opposed portions at the outline of the electron emission surface, the rib portions are provided at right and left parts between the pair of leg portions, and the slits are alternately formed on right and left sides between the pair of leg portions.5. The emitter of claim 1 , whereinthrough holes are formed on the electron emission surface.6. The emitter of claim 5 , whereinthe through holes are formed at positions close to the rib portions.7. The emitter of claim 1 , whereinthe outline of the electron emission surface is formed in a rectangular shape, the leg portions are provided on two opposed rectangular sides, and the pair of rib portions are provided on two other sides.8. An emitter comprising:a base portion including an electron emission surface from which electrons are emitted;a pair of leg portions applying a voltage to the electron emission surface; anda rib portion protruding from the base portion ...

X-Ray Tube with Rotating Anode Aperture

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 within the vacuum enclosure about an axis of rotation; andd. at least one collimator opening, disposed within the vacuum enclosure, adapted for rotation about the axis of rotation.2. An X-ray tube in accordance with claim 1 , wherein the at least one collimator opening is coupled to the anode.3. An X-ray tube in accordance with claim 1 , wherein the anode includes a wedge opening and the at least one collimator opening is contiguous with the wedge opening.4. An X-ray tube in accordance with claim 1 , further comprising an external collimator opening disposed outside the vacuum enclosure. The present application is a continuation application of U.S. Ser. No. 13/869,101, now issued as U.S. Pat. No. ______, and, through that application, claims priority from U.S. Provisional Patent Application Ser. No. 61/638,555, filed Apr. 26, 2012. Both of the aforementioned applications are 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 beam by a stationary ...

MODIFICATION ARRANGEMENT FOR AN X-RAY GENERATING DEVICE

The invention relates to a modification arrangement for an X-ray generating device, a modification method, a computer program element for controlling such device and a computer readable medium having stored such computer program element. The modification arrangement comprises a cathode, an anode () and modification means, e.g. a modification device. The cathode is configured to provide an electron beam (). The anode () is configured to rotate under impact of the electron beam () and is segmented by slits () arranged around the anode's circumference. The modification means are configured to modify the electron beam () when the electron beam () is hitting one of the anode's rotating slits (). 1. (canceled)2. A modification arrangement for an X-ray generating device , comprisinga cathode,an anode;modification means;wherein the cathode is configured to provide an electron beam;wherein the anode is configured to rotate under impact of the electron beam;{'b': '2', "wherein the anode is segmented by slits ( arranged around the anode's circumference;"}wherein the modification means are configured to modify the electron beam when the electron beam is hitting one of the anode's rotating slits andwherein the modification device is configured to deflect the electron beam tangentially forward in or backward against the direction of the anode's rotational movement and then backward against or forward in the direction of the anode's rotational movement to reduce the time during which the electron beam hits one of the slits.3. Arrangement according to claim 2 , wherein the modification device is configured to modify the electron beam when one of the slits is approaching and/or departing the electron beam.4. (canceled)5. (canceled)6. (canceled)7. Arrangement according to claim 2 , wherein the modification additionally is a widening or shortening of the electron beam in a radial and/or a tangential direction.8. Arrangement according to claim 2 , wherein the modification additionally ...

MULTI-SPECTRAL X-RAY TARGET AND SOURCE

Systems, methods, and apparatus for a multi-spectral X-ray target and source are disclosed. In one or more embodiments, a disclosed method comprises emitting, by a source of the X-ray generator, electrons towards a section of a multi-spectral X-ray target of the X-ray generator. In one or more embodiments, the multi-spectral X-ray target is rotatable and comprises a plurality of sections, which each comprise an X-ray generating material and at least two of the sections comprise a different X-ray generating material. The method further comprises generating a set of X-rays, when the electrons impinge on the section of the multi-spectral X-ray target. The method further comprises rotating the multi-spectral X-ray target such that the source is in position to project the electrons towards another section of the multi-spectral X-ray target. Further, the method comprises repeating the above method steps for all of the remaining sections of the multi-spectral X-ray target. 1. A method for operating an X-ray generator , the method comprising:emitting, by a source of the X-ray generator, electrons towards a first section of a multi-spectral X-ray target of the X-ray generator,wherein the multi-spectral X-ray target is rotatable and comprises a plurality of sections including the first section, and wherein each of the sections comprises an X-ray generating material and at least two of the sections comprise a different X-ray generating material; andgenerating, by the first section of the multi-spectral X-ray target, a first set of X-rays, when the electrons impinge on the first section of the multi-spectral X-ray target,wherein the first set of X-rays comprises a first peak characteristic energy.2. The method of claim 1 , wherein the method further comprises:rotating, by an anode driver, the multi-spectral X-ray target such that the source is in position to project the electrons towards a second section of the multi-spectral X-ray target;emitting, by the source, the electrons ...

PHOTON-COUNTING DETECTOR

An imaging system () includes a radiation source () with a focal spot () that emits a beam of x-ray photons that traverses an examination region (). The imaging system further includes a photon counting detector array () that detects a sub-set of the x-ray photons that traverse an examination region. The imaging system further includes a controller () that generates and transmits a pause signal, in response to a calculated drop in an intensity of the emitted the beam of x-ray photons below a predetermined intensity level, which causes the photon counting detector array to pause detecting the sub-set of the x-ray photons. The imaging system further includes a counter () that counts, for each of a plurality of counting periods, the x-ray photons of the sub-set detected by the photon counting detector array in the corresponding counting period. 1. An imaging system , comprising:a radiation source with a focal spot that emits a beam of x-ray photons that traverses an examination region;a photon counting detector array that detects a sub-set of the x-ray photons that traverse an examination region;a controller that generates and transmits a pause signal, in response to a calculated drop in an intensity of the emitted the beam of x-ray photons below a predetermined intensity level, which causes the photon counting detector array to pause detecting the sub-set of the x-ray photons; anda counter that counts, for each of a plurality of counting periods, the x-ray photons of the sub-set detected by the photon counting detector array in the corresponding counting period.2. The imaging system of claim 1 , wherein the controller generates a resume signal in response to a calculated increase in the intensity of the beam of x-ray photons above the predetermined intensity level claim 1 , and the photon counting detector array resumes detecting the beam of x-ray photons in response to resume signal.3. The imaging system of claim 1 , the radiation source claim 1 , comprising:an anode ...

ROTATING ANODE X-RAY TUBE

According to one embodiment, a rotating anode X-ray tube including a rotating cylinder, a rotating shaft fixed to the inside of the rotating cylinder, an anode fixing body arranged between the rotating cylinder and the rotating shaft, extending in the axial direction, and constituted of one of a magnetic substance member formed of a magnetic substance and a heat-transfer enhancing member heat conductivity of which is higher than surrounding members, ball bearings, and an inner member, connected to the anode fixing body by a connecting member, and constituted of one of the magnetic substance member and the heat-transfer enhancing member, one being different from the member constituting the anode fixing body. 1. A rotating anode X-ray tube comprising:a rotating cylinder to which an anode target is fixed;a rotating shaft coaxially fixed to the inside of the rotating cylinder;an anode fixing body arranged between the rotating cylinder and the rotating shaft, extending in the axial direction, and constituted of one of a magnetic substance member formed of a magnetic substance and a heat-transfer enhancing member heat conductivity of which is higher than surrounding members;ball bearings provided between the anode fixing body and the rotating shaft; andan inner member arranged between the anode fixing body and the rotating shaft, connected to the anode fixing body by means of a connecting member, and constituted of one of the magnetic substance member and the heat-transfer enhancing member, one being different from the member constituting the anode fixing body.2. The rotating anode X-ray tube of claim 1 , whereinthe inner member is the heat-transfer enhancing member, and the anode fixing body is the magnetic substance member.3. The rotating anode X-ray tube of claim 2 , whereinin the inner member, at least one pressing deformation part deformed by being pressed by at least one set-screw to be screwed into at least one threaded hole part provided in the anode fixing body ...

X-RAY SOURCE AND X-RAY IMAGING METHOD

An X-ray imaging method including the following steps is provided. An X-ray source is provided, wherein the X-ray source includes a housing, a cathode, and an anode target. The housing has an end window. The cathode is disposed in the housing, and the anode target is disposed beside the end window. The cathode is caused to provide an electron beam. A portion of the electron beam hits at least a part of areas of the anode target to generate an X-ray and the X-ray is emitted out of the housing through the end window. The X-ray is caused to irradiate an object to generate X-ray image information. An image detector is used to receive the X-ray image information. Besides, an X-ray source is also provided. 1. An X-ray source , adapted to providing an X-ray , the X-ray source comprising:a housing comprising an end window, wherein the X-ray is emitted out of the housing through the end window;an anode target disposed beside the end window and adapted to rotating around an axis;a cathode disposed in the housing and adapted to providing an electron beam, wherein a portion of the electron beam hits the rotating anode target to generate the X-ray that passes through the end window; anda shielding unit comprising an opening and disposed on a traveling path of the electron beam and between the cathode and the anode target for shielding another portion of the electron beam, wherein the portion of the electron beam that hits the anode target passes through the shielding unit through the opening of the shielding unit.2. The X-ray source according to claim 1 , wherein the opening of the shielding unit rotates relative to the anode target claim 1 , and the opening is adapted to rotating around a central axis of the shielding unit.3. The X-ray source according to claim 2 , wherein the central axis is consistent with a central point of the electron beam.4. The X-ray source according to claim 1 , wherein a center of the opening of the shielding unit is aligned with a center of the ...

X-RAY DIAGNOSTIC APPARATUS AND MEDICAL-INFORMATION PROCESSING APPARATUS

An X-ray diagnostic apparatus comprises an X-ray tube and processing circuitry. The X-ray tube includes a rotary anode. The processing circuitry is configured to derive an acquiring condition from a fluoroscopic image, and start to increase, in accordance with the acquiring condition derived, a rotating speed of the anode from a low rotating speed to a high rotating speed before the X-ray tube finishes emitting an X-ray to acquire the fluoroscopic image. 1. An X-ray diagnostic apparatus comprising:an X-ray tube including a rotary anode; and derive an acquiring condition from a fluoroscopic image, and', 'start to increase, in accordance with the acquiring condition derived, a rotating speed of the anode from a low rotating speed to a high rotating speed before the X-ray tube finishes emitting an X-ray to acquire the fluoroscopic image., 'processing circuitry configured to'}2. The X-ray diagnostic apparatus according to claim 1 , wherein the processing circuitry is configured to start image acquiring in an interval from when the rotating speed of the anode reaches the high rotating speed to when an elapsed time required to increase the low rotating speed to the high rotating speed elapses after the X-ray tube finishes emitting an X-ray to acquire the fluoroscopic image.3. The X-ray diagnostic apparatus according to claim 1 , wherein the processing circuitry is configured to start to increase the rotating speed of the anode from the low rotating speed to the high rotating speed if a variation in a statistic in brightness of pixels of the fluoroscopic image satisfies a determination condition.4. The X-ray diagnostic apparatus according to claim 1 , wherein the processing circuitry is configured to start to increase the rotating speed of the anode from the low rotating speed to the high rotating speed if an operating mechanism is stopped and if a variation in a statistic in brightness of pixels of the fluoroscopic image satisfies a determination condition.5. The X-ray ...

A ROTARY ANODE FOR AN X-RAY SOURCE

The rotatable anode of a rotating anode X-ray source has demanding requirements placed upon it. For example, it may rotate at a frequency as high as 200 Hz. X-ray emission is stimulated by applying a large voltage to the cathode, causing electrons to collide with the focal track. The focal spot generated at the electron impact position may have a peak temperature between 2000° C. and 3000° C. The constant rotation of the rotating anode protects the focal track to some extent, however the average temperature of the focal track immediately following a CT acquisition protocol may still be around 1500° C. Therefore, demanding requirements are placed upon the design of the rotating anode. The present application proposes a multi-layer coating for the target region of a rotating X-ray anode which improves mechanical resilience and thermal resilience, whilst reducing the amount of expensive refractory metals required. 1. An rotatable anode for a rotating-anode X-ray source , comprising:a substrate; anda target region formed on the substrate;wherein the target region comprises a multi-layer coating comprising a first layer of a first material deposited on a surface of the substrate, and a second layer of a second material deposited on the surface of the first layer;wherein a thickness ratio between the first and second layers of the multi-layer coating in the target region is between approximately 0.5 to 2.0; andwherein the first material has a greater mechanical resilience compared to the second material, and the second material is more thermally conductive compared to the first material.2. The rotatable anode according to claim 1 ,wherein the thickness ratio between the first layer and the second layer in the target region is between approximately 0.95 to 1.05.3. The rotatable anode according to claim 1 ,wherein the total thickness of the first layer and the second layer is between approximately 5 um to 60 um.4. The rotatable anode according to claim 1 ,wherein the first ...

X-ray source and x-ray system

An x-ray source has multiple electron sources spaced apart from each other along a longitudinal direction that is defined as being parallel to the rotation axis of a rotating anode which is common to all of the electron sources. Each electron source emits electrons that strike the anode at respective strike points that are spatially separated from each other along the longitudinal direction, to produce respective emission centers, from which x-rays are emitted, each emission center being associated with respective ones of the x-ray sources.

X-ray source and X-ray system with such an X-ray source

Röntgenquelle (2) mit einer Mehrzahl von in einer Längsrichtung (3) voneinander beabstandeten Elektronenquellen (41...4n) und einer diesen gegenüberliegend angeordneten, sich ebenfalls in Längsrichtung (3) erstreckenden gemeinsamen Anode (8). Die von den Elektronenquellen (41...4n) ausgehenden Elektronen zur Erzeugung von separaten Emissionszentren (181...18n) treffen an in Längsrichtung (3) räumlich voneinander beabstandeten Stellen auf die Anode (8). Die Anode (8) ist um eine in Längsrichtung (3) orientierte Achse (A) drehbar. X-ray source (2) having a plurality of electron sources (41 ... 4n) spaced apart from each other in a longitudinal direction (3) and a common anode (8) arranged opposite the latter and likewise extending in the longitudinal direction (3). The electrons emanating from the electron sources (41... 4n) for producing separate emission centers (181... 18n) impinge on the anode (8) at locations spaced from one another in the longitudinal direction (3). The anode (8) is rotatable about an axis (A) oriented in the longitudinal direction (3).

X-Ray Tube and X-Ray Generating Apparatus

The disclosure relates to an X-ray tube, comprising a cathode and an anode, the cathode and anode being accommodated in a housing which provides a vacuum environment. 1. An X-ray tube , comprising:a cathode configured to produce electrons emitted towards a vacuum when energized;an anode configured to comprise a rotatable anode target disk to emit X-rays after sustaining bombardment by the electrons,wherein the cathode and the anode are contained within a housing that provides a vacuum environment, a rotation shaft configured to rotate with the anode target disk; and', 'a bearing part comprising multiple bearing bodies that are (i) disposed at an outer side of the rotation shaft, (ii) in contact with the rotation shaft, and (iii) in a rolling fit with the rotation shaft, the multiple bearing bodies comprising at least one first rolling body configured to be located at a near-end position of the bearing assembly with respect to a position of the anode target disk, and at least one second rolling body configured to be located at a far-end position of the bearing assembly with respect to the position of the anode target disk,, 'a bearing assembly coupled to the anode target disk, the bearing assembly comprisingwherein a surface of the first rolling body is coated with a first lubrication layer, and a surface of the second rolling body is coated with a second lubrication layer, andwherein a temperature at which the first lubrication layer remains in a solid state is greater than a temperature at which the second lubrication layer remains in a solid state.2. The X-ray tube as claimed in claim 1 , wherein a hardness of the second lubrication layer is less than a hardness of the first lubrication layer.3. The X-ray tube as claimed in claim 1 , wherein the first lubrication layer comprises a silver plating layer.4. The X-ray tube as claimed in claim 1 , wherein the second lubrication layer comprises at least one of a lead plating layer or a molybdenum disulfide plating layer ...

X-RAY TUBE DEVICE AND X-RAY CT APPARATUS

An X-ray tube device capable of preventing a holder holding a bearing from suffering damage, and an X-ray CT apparatus including the X-ray tube device are provided. The X-ray tube device includes: a cathode that produces an electron beam; an anode that produces X rays upon irradiation with the electron beam; a rotating portion that supports and rotates the anode; bearings that are placed at a predetermined distance from each other in a direction of a rotation axis of the rotating portion, each of the bearings having an outer ring and an inner ring between which rolling elements are sandwiched; and a holder that holds the outer rings. The holder has an inner wall that is spaced from an edge of the outer ring. 1. An X-ray tube device , comprising:a cathode that produces an electron beam;an anode that produces X rays upon irradiation with the electron beam;a rotating portion that supports and rotates the anode;bearings that are placed at a predetermined distance from each other in a direction of a rotation axis of the rotating portion, each of the bearings having an outer ring and an inner ring between which rolling elements are sandwiched; anda holder that holds the outer rings,wherein the holder has an inner wall that is spaced from an edge of the outer ring.2. The X-ray tube device according to claim 1 , wherein the holder has an R portion formed by rounding off an edge of an end portion of the holder.3. The X-ray tube device according to claim 1 , wherein the holder has a chamfered portion formed by chamfering an edge of an end portion of the holder.4. The X-ray tube device according to claim 1 , wherein the holder has an end portion positioned lower than the outer ring in the direction of the rotation axis.5. The X-ray tube device according to claim 1 , wherein in the direction of the rotation axis claim 1 , a length of a contact surface between the holder and the outer ring is shorter than a length of the outer ring.6. The X-ray tube device according to claim 1 , ...

Seal for a rotary shaft

Ｘ線管装置

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X射线装置的旋转阳极的内支承件的冷却体和x射线装置

本实用新型涉及一种X射线装置的旋转阳极(1)的内支承件(4)的冷却体(10)，其具有主部段(14)，所述主部段具有基本上围绕冷却体(10)的主轴线(15)圆柱形环绕的侧表面(11)，并且沿主轴线(15)的方向观察从主部段(14)的第一轴向端部(16)延伸至第二轴向端部(17)。主部段(14)具有用于液态的或气态的冷却介质(13)的通道(18)，所述通道具有第一通道部段(19)和第二通道部段(20)。这两个通道部段(19，20)从主部段(14)的第一轴向端部(16)开始分别围绕主轴线(15)朝向第二轴向端部(17)螺旋状地环绕。所述通道部段在主部段(14)的第二轴向端部(17)处相互合并。

회전양극형 x선관

내용 없음.

X-ray tube

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Ｘ線管用回転ターゲットの製造方法

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X-ray tube device of rotary anode type

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X-ray tube

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Sensorless measurement of the rotation frequency of a rotor of an asynchronous machine

The present invention relates to a device (20) and a method for sensorless measuring a mechanical rotor frequency of a rotor (6) of an asynchronous machine (40), wherein the rotor (6) has a predetermined defect and the asynchronous machine (40) has a fixed number of pairs of poles. The asynchronous machine (40) comprises a current determination unit (2) for determining a stator current of the stator (7), wherein the stator current has a stator frequency. A processing unit (3) forms a stator current spectrum of the stator current. An analyzing unit (4) analyzes the stator current spectrum and determines an inverse peak (26) and a corresponding inverse frequency in the stator current spectrum, wherein the inverse peak (26) is the peak having the second highest amplitude in the stator current spectrum in the frequency range of the stator frequency. A calculation unit (5) calculates a mechanical rotor frequency of the rotor (6) from the sum of the stator frequency divided by the number of pairs of poles and the inverse frequency, if the slip of the asynchronous machine (40) is lower than 50%, or from the difference of the stator frequency divided by the number of pairs of poles and the inverse frequency, if the slip is higher than 50%.

X-ray tube device of rotary anode type

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Rotating anode x-ray tube

Periodic modulation of the X-ray intensity

In order to provide an increased, i.e. faster, periodic modulation of X-ray intensity, an anode disk ( 28 ) for a rotating anode in an X-ray tube includes a circumferential target area ( 34 ) with a target surface area ( 36 ), a focal track center line ( 38 ), and a beam-dump surface area ( 40 ). The target surface area when hit by an electron beam generates X-rays. The beam-dump surface area when hit by an electron beam generates no useful X-rays Target portions and beam-dump portions are arranged alternatingly along the focal track center line. A focal spot is centered on the focal track center line. Structures on both sides of the focal track center line are arranged such that same radiation intensities are provided by the both sides when being hit by a homogenous electron beam.

X-ray tube with rotating anode aperture

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.

Wide scanning x-ray source

An imaging tube ( 12 ) includes a cathode ( 30 ) that emits an electron beam ( 32 ) and an anode ( 38 ). The anode ( 38 ) includes multiple target surfaces ( 36 ). Each of the target surfaces ( 36 ) has a focal spot that receives the electron beam ( 32 ). The target surfaces ( 36 ) generate multiple x-ray beams ( 42 ) in response to the electron beam ( 32 ). Each x-ray beam ( 42 ) is associated with one of the target surfaces ( 36 ). An x-ray imaging system ( 10 ) includes the cathode ( 30 ) and the anode ( 38 ). A controller ( 28 ) is electrically coupled to the cathode ( 30 ) and adjusts emission of the electron beam ( 32 ) on the anode ( 38 ).

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.

High intensity microfocus X-ray source for industrial computerized tomography and digital fluoroscopy

A high intensity microfocus x-ray source for the inspection of superalloy objects and the like operates at a voltage of the order of 400-500 kV with an electron beam focal spot size of the order of 2-10 mils and at power levels of tens to hundreds of kilowatts and affords a brightness improvement of at least three thousand over conventional x-ray sources.

X-ray source for computer tomography device

Die Erfindung betrifft einen Röntgenstrahler mit einer Röntgenröhre, aufweisend Ablenkmittel, die den Elektronenstrahl (10) der Röntgenröhre in Abhängigkeit von einem Steuersignal derart ablenken, daß die Position des Brennflecks (BF) auf der Anode (2) einer sich als Funktion der Zeit ändernden Sollposition entspricht. Dabei sind Detektormittel (45, 46), welche die Ist-Position des Brennflecks erfassen, und eine Regeleinrichtung (44) vorgesehen, der das Istwert-Signal und ein Sollwert-Signal zugeführt sind und die das Steuersignal erzeugt.

X-ray generator tube, X-ray generator, X-ray imaging system

Rotary anode x-ray tube device

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Rotary anode type x-ray tube

본 발명은 회전양극형 X선관에 관한 것으로서, X선을 방출하는 양극 타겟(13)이 연결된 회전체(16)와, 상기 회전체(16) 사이에 동압식 슬라이딩 베어링이 설치되고 관축을 따라서 형성된 윤활제 수용실(26) 및 윤활제 수용실(26)과 동압식 슬라이딩 베어링을 연결하는 윤활제 통로(27)를 구비하는 고정체(17)와, 진공용기(11)를 구비한 회전양극형 X선관에서, 고정체(17)에 그 단면으로부터 관축방향으로 윤활제 수용실(26) 및 윤활제 통로(27)와 교차하지 않는 구멍(28a,28b)을 형성하고 상기 구멍(28a,28b) 중에 고정체(17) 보다도 열전도성이 높은 고정체 전열부재(29a,29b)를 끼워 맞추어 일체적으로 접합하고 있고, 또는 회전체(16)의 베어링을 구성하는 내측 원통형 구조체(16c)의 외주벽에 이 내측 원통형 구조체 보다도 열전도율이 높은 전열부재(19)가 원통형으로 접합되어 있으며 또는 회전체와 고정체의 양쪽에 절연부재를 설치하는 것으로, 동압식 슬라이딩 베어링 부분의 온도의 균일화를 얻을 수 있음과 동시에 온도상승을 억제하고 제조가 용이하며 기계적 강도가 높고 장기에 걸쳐 안정적인 회전특성을 유지할 수 있는 회전양극형 X선관을 제공하는 것을 특징으로 한다. The present invention relates to a rotating bipolar X-ray tube, comprising: a rotating body (16) to which an anode target (13) that emits X-rays is connected, and a hydrodynamic sliding bearing is installed between the rotating body (16) and formed along a tube axis. In the rotating anode type X-ray tube having the lubricant receiving chamber 26 and the lubricant passage 27 connecting the lubricant receiving chamber 26 and the lubricant passage 27 connecting the hydrostatic sliding bearing, and the vacuum container 11 In the fixing body 17, holes 28a and 28b which do not intersect the lubricant accommodating chamber 26 and the lubricant passage 27 are formed in the tube axis direction from the end face thereof, and the fixing body 17 is formed in the holes 28a and 28b. The inner cylindrical structure is fitted to the outer circumferential wall of the inner cylindrical structure 16c constituting the bearing of the rotating body 16 by fitting the fixed heat transfer members 29a and 29b having higher thermal conductivity than Heat transfer member 19 having a higher thermal conductivity than the cylindrical In addition, by providing insulating members on both the rotating body and the fixed body, it is possible to obtain uniform temperature of the hydrodynamic sliding bearing part, at the same time to suppress the temperature rise, facilitate the manufacture, high ...

Rotary target for x-ray tube

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Anode current introduction device of rotary anode x-ray tube

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

X-ray tube using piezoelectric ceramic for positive electrode movement compensation and compensation method thereof

本发明涉及使用压电陶瓷补偿阳极移动的X射线管，其由阴极、阳极、X射线管外壳、定子线圈等组成，所述阳极包括：阳极转子、轴托、轴托套、旋转轴承和压电陶瓷驱动器。本发明还涉及使用压电陶瓷补偿X射线管阳极移动的方法。根据本发明的X射线管及其阳极移动补偿方法，通过加在压电陶瓷材料上的电压来实现负反馈控制阳极焦点漂移量，从而有效解决阳极热膨胀造成的焦点漂移问题。

X-ray tube capable of selecting line and point beam

본 발명은, 서로 다른 특성을 가진 엑스선을 용이하게 선택하여 방출할 수 있는 엑스선관에 관한 것으로서, 전자빔을 방출하는 음극부 및 상기 음극부의 전자빔이 충돌되어 전자빔과 다른 각도로 엑스선빔을 방출하는 타겟과, 상기 타겟을 전자빔의 진행방향에 대하여 전후방으로 틸팅시키는 구동부를 구비하는 양극부를 포함하며, 상기 타겟은 전자빔의 경로에 대하여 가변적인 각도를 가지고 엑스선빔에 대한 전후 폭의 선택이 가능한 라인빔과 포인트빔의 선택이 가능한 엑스선관을 제공한다. The present invention relates to an X-ray tube capable of easily selecting and emitting X-rays having different characteristics, and more particularly, to an X-ray tube having a cathode portion for emitting an electron beam and a target for emitting an X-ray beam at an angle different from that of the electron beam, And a driving unit for tilting the target in a forward and a backward direction with respect to a traveling direction of the electron beam. The target includes a line beam having a variable angle with respect to the path of the electron beam and capable of selecting a front- Provides an X-ray tube with a choice of point beams.

Ratary-anode type x-ray tube

내용 없음.

Hydrodynamic bearing system with oscillating disk

FIELD: machine building. SUBSTANCE: invention relates to the bearing with oscillating disk, bearing system containing bearing with oscillating disk, X-ray tube containing this system, as well as to the system for X-ray image provision containing, respectively, the bearing with oscillating disk and said bearing system, and to the method of installation of said bearing with oscillating disk on shaft of X-ray tube. The bearing (100) with oscillating disk has the oscillating disk (102) for axial support of the rotating anode, and installation component (120) used as support for the oscillating disk (102). The installation component (120) has internal installation surface to be secured to the support structure. The installation component (120) is installed in the oscillating disk (102) in oscillating position, where the internal support surface of the oscillating disk (102) is combined with the external support surface (124) of the installation component (120), this ensures the oscillating disk (102) oscillations in all directions relatively to the installation component (120). The installation component (120) is made with possibility of insertion in the oscillating disk (102) in the insert position transverse to the oscillating position. In the oscillating disk (102) at least one cavity (610) is made for insertion in axial direction (160), coinciding with axis (162) of anode rotation, of at least one lock (650), and for interfacing with this lock (650) to fix the oscillating disk (102) with exclusion of its rotation (164) relatively to the support structure upon simultaneous assurance of this disk (102) oscillation. EFFECT: creation of improved, universal and effective axial bearing for the rotating anode of X-ray source ensuring effective axial support for the rotating anode of X-ray source. 16 cl, 27 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК F16C 23/04 (11) (13) 2 573 131 C2 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ...

ANODE PLATE FOR A TURNING ANODE TUBE AND METHOD FOR THE PRODUCTION THEREOF

X-ray tube of the rotary anode type

내용없음 No content

Rotary anode x-ray tube

ANODE FOR X-RAY TUBE.

L'invention concerne les anodes pour tubes à rayons X. L'invention concerne une anode pour tube à rayons X comportant un corps de base (7) ou substrat sur lequel une cible est fournie par une couche (8) de matériau cible, caractérisée en ce qu'elle comprend au moins une couche (9) interposée entre ledit substrat (7) et ladite couche cible (8), et constituée en un matériau présentant une plasticité plus élevée que celle du substrat (7) et de la couche cible (8).

Patent FR2211749B1

SUPPORT FOR ROTATING ANTICATHODE OF X-RAY TUBES

X-RAY TUBE WELL COOLED

On prévoit un tube à rayons X comportant une enceinte où sont produits des rayons X, dans l'enceinte, une cathode, une anode située en regard de la cathode et tournante sur un arbre (7), et un support (11 ) fixe d'arbre d'anode. Le support comporte une chambre (12) de maintien, l'arbre de l'anode étant maintenu dans la chambre. Pour améliorer le refroidissement du tube, on prévoit de faire circuler au travers de l'arbre d'anode un alliage liquide Gallium, Indium, Etain. Cet alliage est conducteur de l'électricité et de la chaleur. Il assure, en même temps que la lubrification des paliers et l'alimentation électrique de l'anode, un refroidissement efficace de l'anode. An X-ray tube is provided comprising an enclosure where X-rays are produced, in the enclosure, a cathode, an anode situated facing the cathode and rotating on a shaft (7), and a fixed support (11) anode tree. The support has a holding chamber (12), the anode shaft being held in the chamber. To improve the cooling of the tube, it is expected to circulate through the anode shaft a Gallium, Indium, Etain liquid alloy. This alloy is conductor of electricity and heat. It ensures, together with the lubrication of the bearings and the power supply of the anode, an efficient cooling of the anode.

SUPPORT FOR A ROTATING TARGET

La présente invention a pour objet un support pour une cible tournante ayant sensiblement la forme d'un disque, perforé en son centre. Le support est constitué d'un matériau qui est un superalliage à durcissement structural à base de nickel. Le support a la forme d'un disque muni d'une zone d'épaisseur moindre à sa périphérie, la zone mince périphérique et la zone épaisse entourant l'orifice central étant séparées par une zone de décrochement de pente comprise entre 3 et 10° et le rapport d'épaisseur entre la zone mince périphérique et la zone épaisse entourant l'orifice central étant compris entre 1,5 et 3. Le superalliage est un inconel ayant subit un traitement de durcissement structural après usinage. Au moins une des faces du support est revêtue d'un revêtement émissif qui sert à évacuer les calories par rayonnement thermique. The present invention relates to a support for a rotating target having substantially the shape of a disk, perforated at its center. The carrier is made of a material which is a nickel-based structural hardening superalloy. The support has the shape of a disk provided with a zone of lesser thickness at its periphery, the peripheral thin zone and the thick zone surrounding the central orifice being separated by a steepness zone with a slope of between 3 and 10 ° and the thickness ratio between the peripheral thin zone and the thick zone surrounding the central orifice being between 1.5 and 3. The superalloy is a inconel having undergone a structural hardening treatment after machining. At least one of the faces of the support is coated with an emissive coating which serves to evacuate the calories by thermal radiation.

ROTATING ANODE OF COMPOSITE MATERIAL FOR X-RAY TUBE

L'invention concerne une anode tournante 1 pour tube à rayons X, apte à être utilisée à des vitesses de rotation élevées. A cet effet, l'anode est formée par un corps de base 8 ayant une première partie 5, 6, en matériau composite carbone-carbone, et une deuxième partie 7, 9 en graphite monolithique portant une cible 30. The invention relates to a rotating anode 1 for an X-ray tube, suitable for use at high rotational speeds. For this purpose, the anode is formed by a base body 8 having a first part 5, 6, in carbon-carbon composite material, and a second part 7, 9 in monolithic graphite carrying a target 30.

PERFECTIONED ANODE FOR X-RAY TUBE AND ITS MANUFACTURING PROCESS

ROTATING ANODE WITH GRAPHITE FOR RADIOGENIC TUBE

Rotating anode for a composite X-ray tube

The invention relates to a rotating anode for a composite X-ray tube, composed of two half-anodes (6 and 7), each in the shape of a disc of which one face (61, 71) is flat and the other face (62, 72) is cut into radial notches (10) joining their crennelated circumference (60, 70) to the centre (63, 73) of the said half-anodes which interlock in one another via their toothed faces (62, 72) and are solidly attached by a mechanical fastening system.

ROTATING ANODE FOR RADIOGENIC TUBES

The invention relates to an X-ray rotating anode whose body has radial recesses which cross under the path of the focus spot and those which cut through the path of the focus spot. These recesses are used to compensate for stresses which are caused during the production of X-ray radiation by the heating of the anode which occurs at the same time. However, in the case of such unstressed anodes, it is still desirable to increase the load capacity. According to the invention, this is possible in that the holes (15) are broken towards the focus spot path (9, 10) and the plate (8) is a ring which is at least 6 mm thick, corresponds approximately to the width of the focus spot path and has a heat-insulating hub (16, 12) towards its rotation axis (11). An X-ray tube which is equipped with a rotating anode according to the invention is particularly suitable for use in medical X-ray diagnosis.

Patent FR2379158B1