公开(公告)号：US08300768B2

公开(公告)日：2012-10-30

申请号：US12868437

申请日：2010-08-25

Applicant: Susumu Hashimoto ,  Toyomasa Honda ,  Sanae Harada ,  Hiroaki Miyazaki

Inventor： Susumu Hashimoto ,  Toyomasa Honda ,  Sanae Harada ,  Hiroaki Miyazaki

IPC: H01J35/00

CPC classification number: A61B6/032 ,  A61B6/4021 ,  H01J35/04 ,  H01J35/06 ,  H01J35/14 ,  H01J35/30 ,  H01J2235/06 ,  H05G1/52

Abstract: An X-ray tube includes: a Wehnelt electrode having a dent inside; a filament arranged in the dent of the Wehnelt electrode and configured to emit an electron beam when electricity is passed therethrough; an anode configured to emit an X-ray in response to the incident electron beam; an electrode part configured by at least one pair of electrode members, the electrode members facing each other across a path of the electron beam, a voltage being applied to each of the electrode members; a voltage controller configured to control the voltage applied to the electrode part; and a shield member arranged in contact with the Wehnelt electrode and configured to cover part of the dent by a projecting part.

Abstract translation: X射线管包括：具有凹陷的Wehnelt电极; 布置在Wehnelt电极的凹陷中并构造成当电流通过时发射电子束的灯丝; 配置为响应于入射电子束发射X射线的阳极; 电极部件，由至少一对电极部件构成，所述电极部件跨越所述电子束的路径彼此面对，对每个所述电极部件施加电压; 电压控制器，被配置为控制施加到所述电极部分的电压; 以及屏蔽构件，其布置成与所述Wehnelt电极接触并且构造成通过突出部覆盖所述凹陷的一部分。

公开(公告)号：US20110286581A1

公开(公告)日：2011-11-24

申请号：US13069286

申请日：2011-03-22

Applicant: Frank Sprenger ,  Moritz Beckmann ,  Yuan Cheng ,  Houman Jafari

Inventor： Frank Sprenger ,  Moritz Beckmann ,  Yuan Cheng ,  Houman Jafari

IPC: H05G1/52 ,  H01J35/06 ,  B82Y99/00

CPC classification number: H01J35/065 ,  A61B6/4028 ,  A61B6/4064 ,  H01J35/04 ,  H01J35/14 ,  H01J2201/30469 ,  H01J2235/062 ,  H01J2235/068 ,  H05G1/30

Abstract: Multibeam field emission x-ray systems and related methods can include cathode elements, an anode assembly spaced from the plurality of cathode elements, and an extraction gate positioned between the plurality of cathode elements and the anode assembly. A potential difference can be applied between the extraction gate and at least one of the cathode elements to cause an emission of electrons from the respective cathode elements. Emission characteristics of the cathode elements can be measured, and the potential difference between the extraction gate and at least one of the cathode elements can be adjusted based on the emission characteristics measured.

Abstract translation: 多光束场发射x射线系统和相关方法可以包括阴极元件，与多个阴极元件间隔开的阳极组件，以及位于多个阴极元件和阳极组件之间的提取门。 可以在提取栅极和至少一个阴极元件之间施加电位差以引起来自各个阴极元件的电子的发射。 可以测量阴极元件的发射特性，并且可以基于测量的发射特性来调节提取栅极和至少一个阴极元件之间的电势差。

公开(公告)号：US20110051884A1

公开(公告)日：2011-03-03

申请号：US12868437

申请日：2010-08-25

Applicant: Susumu HASHIMOTO ,  Toyomasa Honda ,  Sanae Harada ,  Hiroaki Miyazaki

Inventor： Susumu HASHIMOTO ,  Toyomasa Honda ,  Sanae Harada ,  Hiroaki Miyazaki

IPC: A61B6/03 ,  H01J35/06

CPC classification number: A61B6/032 ,  A61B6/4021 ,  H01J35/04 ,  H01J35/06 ,  H01J35/14 ,  H01J35/30 ,  H01J2235/06 ,  H05G1/52

Abstract: An X-ray tube includes: a Wehnelt electrode having a dent inside; a filament arranged in the dent of the Wehnelt electrode and configured to emit an electron beam when electricity is passed therethrough; an anode configured to emit an X-ray in response to the incident electron beam; an electrode part configured by at least one pair of electrode members, the electrode members facing each other across a path of the electron beam, a voltage being applied to each of the electrode members; a voltage controller configured to control the voltage applied to the electrode part; and a shield member arranged in contact with the Wehnelt electrode and configured to cover part of the dent by a projecting part.

Abstract translation: X射线管包括：具有凹陷的Wehnelt电极; 布置在Wehnelt电极的凹陷中并构造成当电流通过时发射电子束的灯丝; 配置为响应于入射电子束发射X射线的阳极; 电极部件，由至少一对电极部件构成，所述电极部件跨越所述电子束的路径彼此面对，对每个所述电极部件施加电压; 电压控制器，被配置为控制施加到所述电极部分的电压; 以及屏蔽构件，其布置成与所述Wehnelt电极接触并且构造成通过突出部覆盖所述凹陷的一部分。

公开(公告)号：US07831020B2

公开(公告)日：2010-11-09

申请号：US12089086

申请日：2006-10-03

Applicant: Tutomu Inazuru

Inventor： Tutomu Inazuru

IPC: H01J35/06

CPC classification number: H01J35/18 ,  H01J35/04 ,  H01J35/14 ,  H01J2235/163 ,  H01J2235/18

Abstract: The present invention relates to an X-ray tube, having a structure for realizing improvement of a magnification factor of a magnified transmission image, and an X-ray source that includes the X-ray tube. The X-ray tube includes: a target housing unit, housing an X-ray target; and an electron gun housing unit, one end of which is mounted to a side wall portion of the target housing unit. The electron gun housing unit is disposed so that a tube axis thereof intersects a tube axis of the target housing unit. The electron gun housing unit holds an electron gun while a center of an electron emission exit of the electron gun is shifted more toward an X-ray emission window side, disposed at one end of the side wall portion of the target housing unit, than the tube axis of the electron gun housing unit.

Abstract translation: 本发明涉及一种具有用于实现放大透射图像的放大倍数的提高的结构的X射线管和包括该X射线管的X射线源。 X射线管包括：目标壳体单元，容纳X射线靶; 以及电子枪容纳单元，其一端安装在目标容纳单元的侧壁部分上。 电子枪容纳单元设置成使其管轴与目标容纳单元的管轴相交。 电子枪外壳单元保持电子枪，同时电子枪的电子发射出口的中心更靠近设置在目标壳体单元的侧壁部分的一端的X射线发射窗侧偏移 电子枪壳体单元的管轴。

公开(公告)号：US20100177874A1

公开(公告)日：2010-07-15

申请号：US12376442

申请日：2007-07-26

Applicant: Stefan Hauttmann

Inventor： Stefan Hauttmann

IPC: H01J35/14 ,  H01J35/04

CPC classification number: H01J35/04 ,  H01J35/14

Abstract: The invention relates to an X-ray tube with a cathode, generating an electron beam, and an ion-deflecting and collecting setup (IDC), consisting of a single pair of electrodes, wherein the first electrode has a positive supply and the second electrode has either an actively or a passively generated negative voltage, compared to ground potential. Further, the invention relates to a method of voltage supplying of a deflecting and collecting setup (IDC) consisting of a single pair of electrode, wherein the first electrode has a positive voltage potential and the second electrode has either an actively or a passively generated negative voltage, compared to ground potential.

Abstract translation: 本发明涉及一种具有阴极，产生电子束的X射线管和由单对电极构成的离子偏转和收集装置（IDC），其中第一电极具有正电源，第二电极 与地电势相比，主动或被动产生的负电压。 此外，本发明涉及一种由单对电极构成的偏转和收集装置（IDC）的电压供给方法，其中第一电极具有正电压电位，第二电极具有主动或被动产生的负极 电压，与地电位相比。

公开(公告)号：US20100098219A1

公开(公告)日：2010-04-22

申请号：US12252609

申请日：2008-10-16

Applicant: Mark E. Vermilyea ,  Colin R. Wilson ,  Yun Zou

Inventor： Mark E. Vermilyea ,  Colin R. Wilson ,  Yun Zou

IPC: G21K1/02

CPC classification number: G21K1/025 ,  H01J35/04 ,  H01J35/08 ,  H01J35/16 ,  H01J2235/086 ,  H01J2235/1204 ,  H01J2235/1262

Abstract: A collimator includes a first plate having an aperture therein, the aperture configured to allow passage of a beam of x-rays from a source of a multi-spot source therethrough, and a second plate parallelly positioned with respect to the first plate and configured to receive and attenuate a first portion of the beam of x-rays passing through the aperture in the first plate, the second plate having an aperture therein configured to non-concentrically overlap the aperture in the first plate, to receive a second portion of the beam of x-rays passing through the aperture in the first plate, and to allow passage of the second portion of the beam of x-rays therethrough. A portion of the aperture in the first plate and a portion of the aperture in the second plate form a composite aperture parallel to the beam of x-rays, the composite aperture configured to allow passage of the second portion of the beam of x-rays through the first and second plates.

Abstract translation: 准直器包括其中具有孔的第一板，所述孔构造成允许来自多点源的源的X射线束通过其中，并且相对于第一板平行定位的第二板被配置为 接收和衰减穿过第一板中的孔的X射线束的第一部分，第二板具有其中构造成与第一板中的孔不同心重叠的孔，以接收梁的第二部分 的X射线通过第一板中的孔，并且允许X射线束的第二部分通过其中。 第一板中的孔的一部分和第二板中的孔的一部分形成平行于X射线束的复合孔，复合孔构造成允许X射线束的第二部分通过 通过第一和第二板。

公开(公告)号：US20100067664A1

公开(公告)日：2010-03-18

申请号：US12513364

申请日：2006-11-21

Applicant: Tomomi Tamura ,  Takumi Kobayashi

Inventor： Tomomi Tamura ,  Takumi Kobayashi

IPC: H01J35/04 ,  H01J35/18

CPC classification number: H01J35/04 ,  H01J35/06 ,  H01J35/14 ,  H01J2235/06 ,  H01J2235/186

Abstract: According to the X-ray generating apparatus of this invention, a potential corresponding to that of a housing is applied to a first electrode, closest to a cathode, of at least two intermediate electrodes arranged between the cathode and a target. Therefore, even if the first electrode with an increased thermal capacity contacts the housing, the function of the X-ray generating apparatus will never be impaired. As a result, the first electrode is not easily restricted by structure, so that the first electrode may be enlarged as a measure for heat radiation, or that the first electrode may be placed in contact with the housing. The first electrode contacting the housing determines a positional relationship of the electron gun and housing to facilitate assembly of the X-ray generating apparatus. Further, all the potentials of the cathode, intermediate electrodes (e.g. a second electrode and a third electrode) and target will have straight polarity with respect to the potential of the first electrode, which facilitates power source control.

Abstract translation: 根据本发明的X射线产生装置，将与壳体相对应的电位施加到最靠近阴极的位于阴极和靶之间的至少两个中间电极的第一电极。 因此，即使具有增加的热容量的第一电极与壳体接触，也不会损害X射线产生装置的功能。 结果，第一电极不容易受到结构的限制，从而第一电极可以作为散热的措施而被扩大，或者第一电极可以被放置成与壳体接触。 接触壳体的第一电极确定电子枪和壳体的位置关系，以便于X射线产生装置的组装。 此外，阴极，中间电极（例如第二电极和第三电极）和靶的所有电位相对于第一电极的电位具有直的极性，这有利于电源的控制。

公开(公告)号：US20100020935A1

公开(公告)日：2010-01-28

申请号：US12574795

申请日：2009-10-07

Applicant: Ehud DAFNI

Inventor： Ehud DAFNI

IPC: H01J35/08

CPC classification number: H01J35/04 ,  A61B6/032 ,  A61B6/4014 ,  A61B6/4021 ,  A61B6/4028 ,  A61B6/4085 ,  A61B6/4291 ,  A61B6/541 ,  H01J35/14 ,  H01J35/24 ,  H01J2235/068 ,  H01J2235/086

Abstract: An X-ray tube system comprising: at least one filament adapted to produce two electron beams when electrified; at least two anodes spaced from each other along a first direction that each comprises a face that receives an electron beams from the at least one filament at a focal point and produces x-ray cone beams responsive thereto, the x-ray beams being directed in a same direction perpendicular to the first direction; a collimator that collimates the cone beams such that the beams are asymmetric, with the side of each beam distal from the other beam having a smaller beam angle than the side proximal to the other beam.

Abstract translation: 一种X射线管系统，包括：至少一根灯丝，其适于在通电时产生两束电子束; 至少两个阳极沿着第一方向彼此间隔开，每个阳极包括在焦点处接收来自所述至少一个灯丝的电子束的面并产生响应于此的X射线锥形束，所述x射线束被引导到 垂直于第一方向的相同方向; 准直器，其使锥形光束准直，使得光束是不对称的，每个光束远离另一个光束的侧面具有比靠近另一个光束的一侧更小的光束角。

公开(公告)号：US20030048875A1

公开(公告)日：2003-03-13

申请号：US10285441

申请日：2002-11-01

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Kazumasa Mihara ,  Yuichiro Kaminou ,  Akira Ishibashi

IPC: H05G001/02

CPC classification number: H01J35/04 ,  A61B6/4429 ,  A61N5/01 ,  A61N5/10 ,  G21G1/12 ,  G21H5/02 ,  H01J2235/186

Abstract: An x-ray treatment apparatus includes an x-ray generating device, a head unit, a manipulator and a microwave source. The x-ray generating device produces x-rays, by letting electrons, which have been emitted from an electron gun, be accelerated by a linear accelerator and strike a target. The acceleration of electrons is effected by microwaves. The x-ray generating device is accommodated in the head unit. The head unit is attached to a distal end portion of the manipulator. The manipulator positions the head unit such that x-rays emitted from the head unit may be applied to a part for medical treatment in a patient. The microwave source is disposed at a proximal end portion of the manipulator. Microwaves are propagated from the microwave source to the accelerator through a waveguide.

Abstract translation: X射线治疗装置包括X射线产生装置，头部单元，机械手和微波源。 X射线产生装置通过使从电子枪发射的电子被线性加速器加速并产生目标而产生X射线。 电子的加速由微波进行。 X射线产生装置容纳在头单元中。 头单元附接到操纵器的远端部分。 操纵器定位头单元，使得从头单元发射的x射线可以施加到患者体内用于医疗的部件。 微波源设置在操纵器的近端部分。 微波通过波导从微波源传播到加速器。

公开(公告)号：US6044129A

公开(公告)日：2000-03-28

申请号：US975727

申请日：1997-11-21

Applicant: Lester D. Miller ,  James E. Burke ,  Donald F. Decou, Jr.

Inventor： Lester D. Miller ,  James E. Burke ,  Donald F. Decou, Jr.

IPC: H01J35/04 ,  H01J35/20

CPC classification number: H01J35/20 ,  H01J35/04

Abstract: An x-ray tube includes an anode, a cathode, and an electrode disposed in an evacuated envelope. The electrode is positioned such that the electrode is remote from an area in immediate proximity to the envelope. An electric field defined by electrode is of sufficient strength such that arcing preferentially occurs between the electrode and the anode as opposed to occurring between the cathode and anode. The electrode is further situated such that metal sputtered from the electrode substantially falls in a define region on the anode and serves as an active getter for pumping gas from the envelope. The electrode is composed of an active metal which, upon being passively heated by the anode, also acts as a getter material to aid in pumping gas from the envelope.

Abstract translation: X射线管包括阳极，阴极和设置在抽真空的外壳中的电极。 电极被定位成使得电极远离紧邻信封的区域。 由电极限定的电场具有足够的强度，使得在电极和阳极之间优先发生电弧，而不是发生在阴极和阳极之间。 电极进一步定位成使得从电极溅射的金属基本上落在阳极上的限定区域中，并且用作用于从封套泵送气体的主动吸气剂。 电极由活性金属组成，其在被阳极被动加热时也用作吸气剂材料以有助于从封套泵送气体。