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公开(公告)号：EP1815485A1
公开(公告)日：2007-08-08
申请号：EP05800619.8
申请日：2005-11-07
发明人： NEGLE, Hans , SACHSSE, Alfred
CPC分类号： H05G1/02 , H01F27/022 , H01F27/04 , H05G1/08
摘要： A high field/high voltage unit comprising at least one electrical component (4) and a solid insulating material (20) in the form of a first and a second piece part (10, 11) which form, in particular, hard foam half bodies and a method of manufacturing same is disclosed. The piece parts (10, 11) each have an inner structure comprising a plurality of preformed cavities (3) in which electrical components (4) are fixed. After assembly, the piece parts (10, 11) form a closed casing of the high field/high voltage unit so that no extra steel vessel is necessary. Conductive paths (5, 6) for the interconnection of the components are integrated in the insulating material (20) using for example an insert technology. Since several functions can thus be integrated in the solid insulating material (20), a simple solution for assembling and disassembling an oil/gas-filled high field/high voltage unit like a high voltage generator for an X-ray tube is provided.
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公开(公告)号：EP1304020B1
公开(公告)日：2005-03-23
申请号：EP01949780.9
申请日：2001-07-23
CPC分类号： H01J35/045 , H05G1/08 , H05G1/10 , H05G1/34
摘要： A compact X-ray source is disclosed, improving controllability an insulation from unwanted high voltage effects. In one aspect, an active variable conductance device (130, 330) connected in series with the cathode is used in a closed loop, feedback arrangement to control the cathode beam current; the current flowing through the device to the cathode being directly sensed and compared with a desired current level. The result of the comparison is used to control the conductance of the device, thereby directly influencing the cathode current. A second aspect provides an extension of a Faraday cage, whereby the secondary winding of a transformer used to supply power to components within the cage is shielded within a coaxial, tubular member connected to the cage and extending outwardly from it.
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63.发明公开
公开(公告)号：EP1280389A1
公开(公告)日：2003-01-29
申请号：EP02016806.8
申请日：2002-07-26
发明人： Brendler, Joachim
CPC分类号： H01J35/045 , H05G1/26
摘要： Die Erfindung betrifft ein Röntgensystem mit mindestens einem mit einem Steuergitter versehenen Röntgenstrahler und einem elektronisch auslesbaren Röntgenbildwandler. Erfindungsgemäß wird der Strom durch den Röntgenstrahler bei Ende einer Röntgenaufnahme unterbrochen, und zwar solange, bis die Röntgenaufnahme aus dem Röntgenbildwandler ausgelesen ist. Danach wird der Strom durch den Röntgenstrahler wieder freigegeben, um die in den Kapazitäten des Systems gespeicherte Energie abzuführen. Dadurch wird eine Überbelichtung der Röntgenaufnahme insbesondere bei dünneren Objekten in Folge der in den Kapazitäten des Systems gespeicherten Energie unterbunden. Gleichzeitig wird aber sichergestellt, daß sich danach die Systemkapazitäten relativ schnell entladen können, so daß eine Umschaltung auf einen Röntgenstrahler ohne Steuergitter möglich ist.
摘要翻译： 该系统具有至少一个具有控制网格的X射线源，至少一个x射线图像转换器和用于提供源极和高压发生器的x射线发生器，用于切换高电压的开关 以及用于在图像转换器传输时间间隔期间阻塞控制网格和通过源的电流，然后允许电流通过源的电网控制电路。 AN还包括以下的独立权利要求：x射线发生器。
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公开(公告)号：EP0498738B1
公开(公告)日：1995-03-22
申请号：EP92400331.2
申请日：1992-02-07
发明人： Jedlitschka, Hans , Sireul, Jacques
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公开(公告)号：EP0430735B1
公开(公告)日：1994-01-26
申请号：EP90403120.0
申请日：1990-11-05
CPC分类号： H05G1/08 , H01J2235/0233 , H01R13/53
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66.发明公开Installation de radiologie à plusieurs appareils commandés selon une boucle avec un dispositif de courtcircuit pour chaque appareil 失效具有多个相互连接的，以形成一个环装置和用于每个装置的短路控制装置的X射线系统。
公开(公告)号：EP0245153A1
公开(公告)日：1987-11-11
申请号：EP87400957.4
申请日：1987-04-24
CPC分类号： H05G1/70 , A61B6/4476 , H05G1/08
摘要： Installation de radiologie, notamment radioscopie et radiographie, comportant plusieurs appareils entre lesquels les signaux de commande et d'état sont transmis en série selon une boucle. Un dispositif de commutation (22) est associé à chaque appareil afin que la boucle reste fermée quand cet appa- rail ne fonctionne pas.
Le dispositif de commutation comporte, à l'entrée de l'appareil correspondant, un simple interrupteur (23) qui est ouvert quand l'appareil fonctionne et fermé dans le cas contraire. Les informations sont transmises sous forme de signaux électriques par l'appareil dans le premier cas et par l'intermédiaire de l'interrupteur fermé (23) dans le second cas.摘要翻译： 透视，特别是透视和射线照相术，系统包括多个乐器之间的控制和信号条件是串联的超过一个循环反mitted。 一种开关装置（22）与每个仪器相关所以没有循环保持关闭。当本仪器未运行。 该开关装置包括，在相应的仪器的输入，一个简单的电路断路器（23）的所有当器械被操作并且在相反的情况下关闭该开口。 该信息是通过在第一种情况下的仪器和在第二种情况下，闭合电路断路器（23）的方式在电信号形式的反式mitted。
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67.发明公开
公开(公告)号：EP4426072A1
公开(公告)日：2024-09-04
申请号：EP23736154.8
申请日：2023-05-05
摘要： A circuit that aims to control the exposure of X-rays by means of an intermediate or feedback current which is directly proportional to the grid current (IG), which in turn controls the current of the anode of the tube and which is ultimately responsible for the emission of the X-ray photons, comprising an anode (A), a cathode (K) connected to ground, as well as a grid (G) connected to a grid current controller circuit (IG) comprising a DC-DC converter (CONV) or "buck converter" to which a power supply voltage (Vsup) is connected, the output of which is connected to an inverter (INV) that is in turn connected to a transformer (TR), where the output of this transformer (TR) is connected to a rectifier (RECT) whose outputs are connected to the grid (G) and to ground. In addition, in said controller circuit there is a control circuit (CONT).
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公开(公告)号：EP4328952A1
公开(公告)日：2024-02-28
申请号：EP22191434.4
申请日：2022-08-22
发明人： PROKSA, Roland , WIEBUS, Ruth
摘要： The present invention relates to an X-ray system (10), comprising: an anode (20); a cathode (30) that comprises an electron emitter filament (40) and focal grid electrodes (50). The system also comprises: a high voltage supply (60); at least one low-medium voltage supply (70); and a controller (80). The controller is configured to control the high voltage supply to apply a first high voltage between the anode and the cathode. The controller is configured to control the high voltage supply to apply a second high voltage between the anode and the cathode, wherein the second high voltage is greater than the first high voltage. The controller is configured to control the at least one low-medium voltage supply to apply at least two voltages to the focal grid electrodes to form a focused electron beam on the anode from electrons emitted from the electron emitter filament. The controller is configured to control the at least one low-medium voltage supply to vary at least one voltage applied to the focal grid electrodes to move the focused electron beam on the anode. During application of the first high voltage between the anode and the cathode, the controller is configured to control the at least one low-medium voltage supply to form a focused electron beam of a first size on the anode. During application of the second high voltage between the anode and the cathode, the controller is configured to control the at least one low-medium voltage supply to form a focused electron beam of a second size on the anode, wherein the focused electron beam of the second size on the anode is smaller than the focused electron beam of the first size on the anode. During application of the second high voltage between the anode and the cathode, the controller is configured to control the at least one low-medium voltage supply to move the focused electron beam of the second size on the anode.
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公开(公告)号：EP4325545A1
公开(公告)日：2024-02-21
申请号：EP22191257.9
申请日：2022-08-19
申请人： incoatec GmbH
摘要： An x-ray tube (1), comprising
- a thermionic cathode (4) having a flat electron emission surface (11),
- and a target (6),
wherein the x-ray tube (1) is designed for generating an electron beam (5) propagating from the cathode (4) to the target (6) along a beam axis (12) running along a z direction and for generating a microfocus spot (24) on the target (6),
is characterized in
that the target (6) is configured as a target anode (7),
and that the x-ray tube (1) comprises apertures (16, 19, 22) in the form of a control electrode (14) with a first aperture opening (17), a focusing electrode (18) with a second aperture opening (20) and a beam shaping electrode (21) with a third aperture opening (23), the apertures (16, 19, 22) being located in z direction between the electron emission surface (11) and the target anode (7) in the named order,
wherein the first aperture opening (17) is smaller than the emission surface (11) and has a contour which is rotationally symmetric with respect to the beam axis (12); wherein the second aperture opening (20) is larger than the first aperture opening (17) and has a contour which is rotationally symmetric with respect to the beam axis (12),
wherein the third aperture opening (23) has a contour which is aligned with an xy plane and non-rotationally symmetric with respect to the beam axis (12),
with x, y, z forming a Cartesian coordinate system (R).
The X-ray tube (1) according to the invention has a simple structure for generating an electron beam (5), wherein the number of electrons in the electron beam (5) can be varied easily and over a wide range.-
公开(公告)号：EP3614812B1
公开(公告)日：2021-09-29
申请号：EP19193159.1
申请日：2019-08-22
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