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11. 发明申请

US20170309436A1 Electron-Beam Spot Optimization 审中-公开
公开(公告)号：US20170309436A1
公开(公告)日：2017-10-26
申请号：US15424270
申请日：2017-02-03
申请人： Moxtek, Inc.
发明人： Dustin Peterson , Richard Zimmerman , Vince Jones , Eric Miller
IPC分类号： H01J35/14 , H01J35/30
摘要： Electron beam spot characteristics can be tuned in each x-ray tube by moving a focusing-ring along a longitudinal-axis of the x-ray tube. The focusing-ring can then be immovably fastened to the x-ray tube.An x-ray source can include an x-ray tube and a focusing-ring. The focusing-ring can at least partially encircle an electron-emitter, a cathode, an evacuated-enclosure, or combinations thereof. The focusing-ring can be located outside of a vacuum of the evacuated enclosure. The focusing-ring can adjust an electron-beam spot on a target material of the x-ray tube when moved along a longitudinal-axis extending linearly from the electron-emitter to the target material.

12. 发明授权

US09659739B2 Blanking of electron beam during dynamic focal spot jumping in circumferential direction of a rotating anode disk of an X-ray tube 有权
公开(公告)号：US09659739B2
公开(公告)日：2017-05-23
申请号：US14399658
申请日：2013-05-17
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Christoph Helmut Bathe , Thorben Repenning
IPC分类号： H05G1/34 , H01J35/14 , H01J35/30 , H05G1/46 , A61B6/00 , G01N23/225 , H01J35/24
CPC分类号： H01J35/14 , A61B6/4021 , A61B6/405 , A61B6/4441 , A61B6/54 , G01N23/2252 , H01J35/24 , H01J35/30 , H01J35/305 , H05G1/34 , H05G1/46
摘要： An apparatus (210) and method for total or partial blanking of an electron beam (e) during a jump between the 2 or more positions of a dynamic focal spot (FP) movement in circumferential direction of the electron beam impinging on the focal track (FPTR) of a rotating target disk (230) of a X-ray tube (110). Alternatively the focal spot size can be increased during this short time interval. Overheating of the anode at the focal spot can be prevented.

13. 发明申请

US20150287565A1 X-RAY TUBE DEVICE 有权
标题翻译： X射线管设备
公开(公告)号：US20150287565A1
公开(公告)日：2015-10-08
申请号：US14437491
申请日：2012-10-22
申请人： SHIMADZU CORPORATION
发明人： Sadamu Tomita , Masaaki Ukita
IPC分类号： H01J35/14 , H01J35/16 , H01J35/30
CPC分类号： H01J35/14 , H01J35/16 , H01J35/305 , H01J2235/02 , H01J2235/16 , H01J2235/168
摘要： An X-ray tube device according to the present invention includes a cathode generating an electron beam, an anode generating an X-ray by collision of the electron beam from the cathode, an envelope internally housing the cathode and the anode, a magnetic field generator including a magnetic pole arranged to be opposed to the envelope, generating a magnetic field for focusing and deflecting the electron beam from the cathode to the anode, and an electric field relaxing electrode arranged between the magnetic pole and the envelope, having an outer surface having a rounded shape. Thus, the magnetic field generator can be placed closer to the envelope while a tip end of the magnetic field generator is suppressed from being a discharge start point, and hence the effect of being capable of downsizing the X-ray tube device is achieved.
摘要翻译：根据本发明的X射线管装置包括产生电子束的阴极，通过来自阴极的电子束的碰撞产生X射线的阳极，内部容纳阴极和阳极的外壳，磁场发生器包括设置成与外壳相对的磁极，产生用于使电子束从阴极到阳极聚焦和偏转的磁场，以及布置在磁极和外壳之间的电场弛豫电极，其外表面具有圆形。因此，可以将磁场发生器放置得更靠近封套，同时将磁场发生器的前端抑制为放电开始点，从而实现能够使X射线管装置小型化的效果。

14. 发明授权

US09135728B2 System and method for multi-energy computed tomography imaging 有权
标题翻译：多能计算机断层成像系统和方法
公开(公告)号：US09135728B2
公开(公告)日：2015-09-15
申请号：US13439245
申请日：2012-04-04
申请人： Jiahua Fan , Jiang Hsieh , Naveen Chandra , Suresh Narayanan Narayanan , Dan Xu
发明人： Jiahua Fan , Jiang Hsieh , Naveen Chandra , Suresh Narayanan Narayanan , Dan Xu
IPC分类号： G06T11/00 , A61B6/06 , A61B6/00 , G21K1/02 , A61B6/03 , G21K1/10 , H01J35/26 , H01J35/30
CPC分类号： G06T11/005 , A61B6/032 , A61B6/06 , A61B6/4021 , A61B6/4035 , A61B6/4241 , A61B6/4291 , A61B6/482 , A61B6/582 , G06T2211/408 , G21K1/025 , G21K1/10 , H01J35/26 , H01J35/30
摘要： A CT system includes a gantry, an x-ray source, a detector, and a grating collimator that includes alternating first and second materials. The system includes a controller configured to emit a first beam of x-rays from a first focal spot and to a first detector pixel, wherein the first beam of x-rays passes along a ray and through one of the first materials of the grating collimator, and subsequently emit a second beam of x-rays from a second focal spot and to the first detector pixel, wherein the second beam of x-rays passes substantially along the ray and through one of the second materials of the grating collimator. The system includes a computer programmed to generate first and second kVp image datasets using data acquired from the first beam and second beams of x-rays, and reconstruct a basis material image of the object.
摘要翻译： CT系统包括台架，X射线源，检测器和包括交替的第一和第二材料的光栅准直器。该系统包括控制器，该控制器被配置为从第一焦点和第一检测器像素发射第一X射线束，其中第一射线束沿着光线并通过光栅准直器的第一材料之一并且随后从第二焦点和第一检测器像素发射第二射线束，其中所述第二光束X射线基本上沿着所述光线并通过所述光栅准直器的所述第二材料之一通过。该系统包括被编程为使用从第一光束和第二光束获得的数据来生成第一和第二kVp图像数据集的计算机，并重构对象的基础材料图像。

15. 发明授权

US09117564B2 Variable angle collimator 有权
标题翻译：可变角准直仪
公开(公告)号：US09117564B2
公开(公告)日：2015-08-25
申请号：US13933601
申请日：2013-07-02
申请人： American Science and Engineering, Inc.
发明人： Martin Rommel
IPC分类号： G21K1/02 , G21K5/04 , A61B6/06 , H01J35/30
CPC分类号： G21K1/04 , A61B6/06 , G21K1/02 , G21K1/025 , G21K1/08 , G21K5/04 , H01J35/30
摘要： A system for producing a controllable beam of radiation is controllable electronically, and includes no parts that must move relative to one another while in operation to form the beam. The direction and cross-section of the beam may be controlled electronically by controlling an electron beam. Various embodiments provide an X-ray collimator that allows forming a scanning X-ray beam of desired size and flux independently of the aperture material thickness without requiring movement of the aperture or physical components that create the aperture. Some embodiments provide an X-ray collimator that allows forming a scanning X-ray beam of desired size and flux independently of the beam angle.
摘要翻译：用于产生可控的辐射束的系统是电子控制的，并且在操作中不包括必须相对于彼此移动的部分以形成光束。通过控制电子束可以电子地控制光束的方向和横截面。各种实施例提供一种X射线准直器，其允许独立于孔隙材料厚度形成所需尺寸和通量的扫描X射线束，而不需要产生孔径的孔或物理部件的移动。一些实施例提供一种X射线准直器，其允许独立于光束角形成所需尺寸和通量的扫描X射线束。

16. 发明授权

US09080947B2 X-ray irradiation device and analysis device 有权
标题翻译： X射线照射装置及分析装置
公开(公告)号：US09080947B2
公开(公告)日：2015-07-14
申请号：US13638197
申请日：2011-03-30
申请人： Hiromichi Yamazui , Keisuke Kobayashi , Hideo Iwai , Masaaki Kobata
发明人： Hiromichi Yamazui , Keisuke Kobayashi , Hideo Iwai , Masaaki Kobata
IPC分类号： G21K1/06 , G01N23/227 , G21K7/00 , H01J35/28 , H01J35/30
CPC分类号： G01N23/2273 , G01N2223/204 , G01N2223/206 , G21K1/06 , G21K7/00 , H01J35/28 , H01J35/30 , H01J2235/081 , H01J2235/086 , H01J2235/163
摘要： [Object] The present invention provides an X-ray irradiation device capable of adjusting the energy of X-rays in a wide range, and an analysis device equipped with the X-ray irradiation device.[Solving Means] An X-ray irradiation device according to an embodiment of the present invention focuses X-rays emitted from an X-ray generation mechanism to a predetermined focal position by a focusing mechanism. The X-ray generation mechanism has a structure which generates a plurality of X-rays having different wavelengths. The focusing mechanism has a structure in which the plurality of X-rays are focused to the same focal position by focusing elements having diffraction characteristics suitable for the wavelengths of the respective X-rays generated by the X-ray generation mechanism.
摘要翻译：本发明提供能够在宽范围内调整X射线能量的X射线照射装置以及配备有X射线照射装置的分析装置。本发明的实施方式的X射线照射装置通过聚焦机构将从X射线产生机构发射的X射线聚焦到预定的焦点位置。 X射线产生机构具有产生具有不同波长的多个X射线的结构。聚焦机构具有通过具有适合于由X射线产生机构产生的各X射线的波长的衍射特性的聚焦元件将多个X射线聚焦到同一焦点位置的结构。

17. 发明授权

US08358741B2 Device and method to control an electron beam for the generation of x-ray radiation, in an x-ray tube 有权
标题翻译：在X射线管中控制用于产生X射线辐射的电子束的装置和方法
公开(公告)号：US08358741B2
公开(公告)日：2013-01-22
申请号：US12857676
申请日：2010-08-17
申请人： Michael Grasruck , Andreas Schaller
发明人： Michael Grasruck , Andreas Schaller
IPC分类号： H01J35/30
CPC分类号： H01J35/14 , H01J35/045 , H05G1/38
摘要： A device to control an electron beam for the generation of x-ray radiation, has an electron emitter to generate an electron beam, to which emitter an emitter voltage can be applied, a diaphragm, at least two control elements associated with the diaphragm to affect the electron beam, and switching arrangement with which at least two different electrical voltages can be applied to the at least two control elements. The same electrical voltage is applied to each of the at least two control elements. Upon switching the voltage, an electrical circuit that delays the setting of the respective voltage at the one control element is associated with the connection line of the one control element with the switching arrangement to switch over the voltage. The invention moreover concerns an operating method for the device and an x-ray tube provided with the device.
摘要翻译：用于控制用于产生X射线辐射的电子束的装置具有电子发射器以产生电子束，发射极可以施加到发射极电压，隔膜，与隔膜相关联的至少两个控制元件影响电子束以及可以向至少两个控制元件施加至少两个不同电压的开关装置。对于至少两个控制元件中的每一个施加相同的电压。在切换电压时，延迟在一个控制元件处的相应电压的设置的电路与一个控制元件的连接线与开关装置相关联以切换电压。本发明还涉及该装置的操作方法和设置有该装置的X射线管。

18. 发明授权

US07782999B2 Systems and methods for scanning and data acquisition in computed tomography (CT) applications 有权
标题翻译：计算机断层扫描（CT）应用中扫描和数据采集的系统和方法
公开(公告)号：US07782999B2
公开(公告)日：2010-08-24
申请号：US12096443
申请日：2006-09-16
申请人： Astrid Lewalter , Rainer Pietig , Guenter Zeitler , Kai Eck , Christoph Herrmann , Rainer Kiewitt , Christoph Loef , Oliver Muelhens , Carolina Ribbing , Georg Rose , Matthias Simon , Olaf Wischhusen
发明人： Astrid Lewalter , Rainer Pietig , Guenter Zeitler , Kai Eck , Christoph Herrmann , Rainer Kiewitt , Christoph Loef , Oliver Muelhens , Carolina Ribbing , Georg Rose , Matthias Simon , Olaf Wischhusen
IPC分类号： H05G1/60 , H01J35/30
CPC分类号： A61B6/032 , A61B6/027 , A61B6/4021 , A61B6/503 , A61B6/504 , H01J2235/086 , H05G1/52
摘要： Systems and methods for data acquisition in computed tomography (CT) applications are provided. The systems and methods are particularly adapted for scanning and acquiring/processing data in connection with high-power cone-beam CT applications. The electron beam is moved/scanned along the anode surface to multiple focal positions. Data acquisition for a full projection at one focus position and one view angle is achieved by activating each focus position multiple times during the data acquisition for one angle of the gantry. The detector array and associated data processing system are adapted to rapidly switch between the different focus positions during the acquisitions for one view angle and to collect all data belonging to the same projection into the same data set. Adaptive electron optics are utilized to move/scan the electron beam along the anode surface to the various focus positions. Alternatively, a plurality of cathodes may be provided for respective focus positions and the system may support fast switching therebetween to achieve desirably short spot times. The disclosed CT system permits greater power densities without risk of heat damage to the anode and effectively increases the track velocity of the electron beam on the anode surface. The CT system and associated data acquisition methods have particular utility in CT applications requiring increased time resolution and/or spatial resolution, e.g., cardiac CT applications.
摘要翻译：提供了计算机断层摄影（CT）应用中数据采集的系统和方法。该系统和方法特别适用于扫描和获取/处理与大功率锥束CT应用有关的数据。电子束沿着阳极表面移动/扫描到多个焦点位置。通过在台架的一个角度的数据采集过程中激活每个聚焦位置多次来实现在一个聚焦位置和一个视角下的全投影的数据采集。检测器阵列和相关联的数据处理系统适于在一次视角的采集期间在不同聚焦位置之间快速切换，并且将属于相同投影的所有数据收集到同一数据集中。使用自适应电子光学器件将电子束沿着阳极表面移动/扫描到各种焦点位置。或者，可以为各个焦点位置设置多个阴极，并且系统可以支持它们之间的快速切换，以实现期望的短光斑时间。所公开的CT系统允许更大的功率密度，而不会对阳极造成热损害的风险，并且有效地增加阳极表面上的电子束的轨道速度。 CT系统和相关数据采集方法在需要增加时间分辨率和/或空间分辨率（例如心脏CT应用）的CT应用中具有特别的用途。

19. 发明申请

US20100172475A1 FAST DOSE MODULATION USING Z-DEFLECTION IN A ROTARING ANODE OR ROTARING FRAME TUBE 有权
标题翻译：在旋转阳极或旋转框架管中使用Z偏差进行快速调剂
公开(公告)号：US20100172475A1
公开(公告)日：2010-07-08
申请号：US12664451
申请日：2008-06-17
申请人： Rolf Karl Otto Behling
发明人： Rolf Karl Otto Behling
IPC分类号： H01J35/26 , H01J35/30
CPC分类号： H01J35/14 , H01J35/10 , H01J35/26 , H01J35/30 , H01J2235/086
摘要： A fast dose modulation using a z-deflection in a rotating anode or a rotating frame tube, where the electron beam is deflected from a first focal spot region to a second focal spot region being formed on the anode, wherein only the electromagnetic beam generated in the first focal spot region contributes to the useful electromagnetic exposure beam, wherein the second focal spot region is designed to avoid emission of electromagnetic beams into the direction of a useful electromagnetic beam direction.
摘要翻译：在旋转阳极或旋转框架管中使用z偏转的快速剂量调制，其中电子束从形成在阳极上的第一焦点区域偏转到第二焦斑区域，其中仅电子束产生于第一焦点区域有助于有用的电磁辐射光束，其中第二焦斑区域被设计为避免电磁束发射到有用的电磁波束方向的方向。

20. 发明申请

US20100074392A1 X-RAY TUBE WITH MULTIPLE ELECTRON SOURCES AND COMMON ELECTRON DEFLECTION UNIT 审中-公开
标题翻译：具有多个电子源和通用电子偏转单元的X射线管
公开(公告)号：US20100074392A1
公开(公告)日：2010-03-25
申请号：US12517216
申请日：2007-11-30
申请人： Rolf Karlotto Behling , Gerald James Carlson
发明人： Rolf Karlotto Behling , Gerald James Carlson
IPC分类号： H01J35/30 , H01J35/14 , H01J35/08 , A61B6/00
CPC分类号： H01J35/06 , H01J35/14 , H01J2235/068
摘要： It is described an X-ray tube (100, 200) for moving a focal spot within a wide range. The X-ray tube (100, 200) comprises a first electron source (105), which is adapted to generate a first electron beam projecting along a first beam path (107a, 107b), a second electron source (110), which is adapted to generate a second electron beam projecting along a second beam path (112a, 112b) and an anode (120), which is arranged within the first beam path (107a, 107b) and within the second beam path (112a, 112b) such that on a surface (121) of the anode (120) the first electron beam (307a) generates a first focal spot (308) and the second electron beam (412a) generates a second focal spot (413). The X-ray tube (100, 200) further comprises a common deflection unit (130, 330, 430), which is adapted to deflect the first (307a) and the second electron beam (412a), such that the positions of the first (308) and the second focal spot (413) is shifted. The electron sources (105, 110) may be arranged within a linear array allowing for a simple mechanical support of the X-ray sources.
摘要翻译：描述了用于在宽范围内移动焦点的X射线管（100,200）。 X射线管（100,200）包括第一电子源（105），其适于产生沿着第一光束路径（107a，107b）突出的第一电子束，第二电子源（110）适于产生沿着第二光束路径（112a，112b）和阳极（120）投射的第二电子束，阳极（120）布置在第一光束路径（107a，107b）内并在第二光束路径（112a，112b）内，在阳极（120）的表面（121）上，第一电子束（307a）产生第一焦斑（308），第二电子束（412a）产生第二焦点（413）。 X射线管（100,200）还包括公共偏转单元（130,330,430），其适于使第一（307a）和第二电子束（412a）偏转，使得第一（308）和第二焦斑（413）移动。电子源（105,110）可以布置在允许X射线源的简单机械支撑的线性阵列内。

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