公开(公告)号：US10020158B2

公开(公告)日：2018-07-10

申请号：US14559807

申请日：2014-12-03

Applicant: CANON KABUSHIKI KAISHA

Inventor： Shuji Yamada ,  Takeo Tsukamoto ,  Takao Ogura ,  Tadayuki Yoshitake ,  Yoichi Ikarashi

IPC: H01J35/00 ,  H01J35/08 ,  G01N23/04 ,  H01J35/04 ,  C23C16/01 ,  C23C16/27

CPC classification number: H01J35/08 ,  C23C16/01 ,  C23C16/27 ,  G01N23/04 ,  H01J35/045 ,  H01J35/116 ,  H01J35/186 ,  H01J2235/02 ,  H01J2235/081 ,  H01J2235/084

Abstract: A transmissive-type target includes a target layer, and a transmissive substrate configured to support the target layer. The transmissive substrate has a pair of surfaces facing each other and is formed of polycrystalline diamond. In the transmissive substrate, one of the pair of surfaces includes polycrystalline diamond having a first average crystal grain diameter which is smaller than a second average crystal grain diameter of polycrystalline diamond included on the other surface opposing thereto. The target layer is supported by any one of the pair of surfaces.

公开(公告)号：US20110058643A1

公开(公告)日：2011-03-10

申请号：US12554164

申请日：2009-09-04

Applicant: Sergio Lamaitre ,  Carey Rogers ,  Yun Zou ,  Jizhong Chen

Inventor： Sergio Lamaitre ,  Carey Rogers ,  Yun Zou ,  Jizhong Chen

IPC: G01N23/04 ,  H01J35/06 ,  H05G1/10 ,  G01N23/08 ,  H01J35/14

CPC classification number: H01J35/04 ,  A61B6/032 ,  A61B6/4021 ,  A61B6/482 ,  H01J35/045 ,  H01J35/06 ,  H01J2235/02 ,  H01J2235/06

Abstract: In one embodiment, an X-ray tube is provided. The X-ray tube comprises at least one thermionic cathode configured to generate an electron beam, a target assembly configured to generate X-rays when impinged with the electron beam emitted from the thermionic cathode, a high voltage supply unit for establishing an output voltage across the thermionic cathode and the target assembly for establishing an accelerating electric field between the thermionic cathode and the target assembly and a mesh grid disposed between the thermionic cathode and the target assembly, the mesh grid configured to operate at a voltage so as to lower the electric field applied at the surface of the thermionic cathode. Further, the voltage at the mesh grid is negatively biased with respect to the voltage at the thermionic cathode.

Abstract translation: 在一个实施例中，提供了X射线管。 所述X射线管包括构造成产生电子束的至少一个热离子阴极，配置成当与从所述热离子阴极发射的电子束碰撞时产生X射线的目标组件，用于建立跨越所述电子束的输出电压的高压电源单元 所述热离子阴极和所述目标组件用于在所述热离子阴极和所述目标组件之间建立加速电场，以及设置在所述热离子阴极和所述目标组件之间的网状网格，所述网状结构被配置为在电压下操作以降低所述电 场施加在热离子阴极的表面。 此外，网格网格处的电压相对于热离子阴极处的电压是负偏置的。

公开(公告)号：US20090130883A1

公开(公告)日：2009-05-21

申请号：US12267919

申请日：2008-11-10

Applicant: Hans Jedlitschka

Inventor： Hans Jedlitschka

IPC: H01R13/52

CPC classification number: H01R13/53 ,  H01J2235/02 ,  H01R13/5219 ,  H01R2201/12

Abstract: A plug for the connection of a high-voltage cable. The plug comprises a jacket configured to be inserted into a connection receptacle of a high-voltage electrical appliance in order to connect the cable to the appliance, wherein the jacket includes a recess created therein, and a sleeve positioned around the jacket to form an insulating interface between the jacket and the receptacle, with the sleeve being located in the recess of the jacket and configured to hold the sleeve on the jacket.

Abstract translation: 用于连接高压电缆的插头。 插头包括被配置成插入到高压电器的连接插座中以将电缆连接到电器的外壳，其中护套包括在其中形成的凹部和围绕护套定位的套筒，以形成绝缘 护套和插座之间的接口，套筒位于护套的凹槽中并且被配置成将套管保持在护套上。

公开(公告)号：US5828210A

公开(公告)日：1998-10-27

申请号：US702375

申请日：1996-08-23

Applicant: Gerald Burt Kliman ,  Rudolph Alfred Albert Koegl ,  Steven Duane Hansen

Inventor： Gerald Burt Kliman ,  Rudolph Alfred Albert Koegl ,  Steven Duane Hansen

IPC: G01P3/48 ,  H01J35/10 ,  G01P3/54

CPC classification number: G01P3/48 ,  H01J35/10 ,  H01J2235/02

Abstract: A method for monitoring a rotor speed of an X-ray tube anode drive includes acquiring axial flux pickup data from the rotor, using the axial flux pickup data to provide a flux spectrum, and estimating the rotor speed by analyzing the flux spectrum. The step of acquiring axial flux pickup data can include situating an axial leakage flux pickup coil so as to pick up a flux signal from an X-ray tube anode drive rotor while the rotor rotates. An analog flux signal can be converted to a digital flux signal and a fast Fourier transform can be used to transform the digital flux signal into a flux spectrum. The flux spectrum can be used to estimate a drive frequency and a slip frequency and the speed can be estimated by subtracting the slip frequency from the drive frequency and dividing by the number of pole pairs of the X-ray tube anode drive.

Abstract translation: 用于监视X射线管阳极驱动器的转子速度的方法包括使用轴向磁通拾取数据从转子获取轴向磁通拾取数据以提供磁通谱，并通过分析磁通谱来估计转子速度。 获取轴向磁通拾取数据的步骤可以包括设置轴向漏磁通拾取线圈，以便在转子旋转时从X射线管阳极驱动转子拾取磁通信号。 模拟通量信号可以转换为数字通量信号，并且可以使用快速傅立叶变换将数字通量信号转换为通量谱。 磁通谱可用于估计驱动频率和滑差频率，并且可以通过从驱动频率中减去滑差频率并除以X射线管阳极驱动器的极对数来估计速度。

公开(公告)号：US20230274904A1

公开(公告)日：2023-08-31

申请号：US18311683

申请日：2023-05-03

Applicant: Moxtek, Inc.

Inventor： Todd S. PARKER ,  Kasey Otho GREENLAND

IPC: H01J35/16

CPC classification number: H01J35/16 ,  H01J2235/02 ,  H01J2235/16

Abstract: An x-ray tube 10 can have (a) an enclosure electrically-insulating a cathode 11 from an anode 12; (b) a coating-ring 18 on an inner-face of the enclosure, the coating-ring 18 encircling a longitudinal-axis 16 of the enclosure; and (c) an interruption-ring 19 located at the inner-face of the enclosure at a different location than the coating-ring 18. The interruption-ring 19 can encircle the longitudinal-axis 16 at a different location along the longitudinal-axis 16 with respect to the coating-ring 18. The interruption-ring 19 can encircle the longitudinal-axis 16 at a different radius from the longitudinal-axis 16 than the coating-ring 18. The coating-ring 18 and the interruption-ring 19 can reduce uneven electrical charge build-up on the inner-face of the enclosure, and can protect the triple-point.

公开(公告)号：US20150063548A1

公开(公告)日：2015-03-05

申请号：US14380988

申请日：2013-02-07

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Norimasa Kosugi ,  Naoki Okumura ,  Tatsuya Nakamura ,  Toru Fujita ,  Tomoyuki Okada ,  Akiomi Ujima

IPC: H01J35/02 ,  H01J35/18

CPC classification number: H01J35/025 ,  H01J35/045 ,  H01J35/18 ,  H01J2235/02 ,  H01J2235/186 ,  H05G1/06 ,  H05G1/70

Abstract: In an X-ray radiation source, a lid part is fastened to a main part with screws, so that an X-ray tube is secured to a housing while being pressed against an inner surface of the wall part a by a first circuit board. The X-ray tube can be secured stably within the housing by thus being held between the first circuit board and the wall part. The X-ray radiation source uses the first circuit board incorporated in the housing itself for pressing the X-ray tube. This makes it unnecessary to provide new members for pressing the X-ray tube and can prevent the device structure from becoming complicated.

Abstract translation: 在X射线辐射源中，用螺钉将盖部分固定在主体部分上，使得X射线管通过第一电路板按压到壁部a的内表面而固定在壳体上。 因此，通过将X射线管保持在第一电路基板与壁部之间，能够稳定地固定在壳体内。 X射线辐射源使用结合在壳体本身中的第一电路板来挤压X射线管。 这不需要提供用于按压X射线管的新构件，并且可以防止装置结构变得复杂。

公开(公告)号：US07901234B2

公开(公告)日：2011-03-08

申请号：US12267919

申请日：2008-11-10

Applicant: Hans Jedlitschka

Inventor： Hans Jedlitschka

IPC: H01R13/52

CPC classification number: H01R13/53 ,  H01J2235/02 ,  H01R13/5219 ,  H01R2201/12

Abstract: A plug for the connection of a high-voltage cable. The plug comprises a jacket configured to be inserted into a connection receptacle of a high-voltage electrical appliance in order to connect the cable to the appliance, wherein the jacket includes a recess created therein, and a sleeve positioned around the jacket to form an insulating interface between the jacket and the receptacle, with the sleeve being located in the recess of the jacket and configured to hold the sleeve on the jacket.

Abstract translation: 用于连接高压电缆的插头。 插头包括被配置成插入到高压电器的连接插座中以将电缆连接到电器的外壳，其中护套包括在其中形成的凹部和围绕护套定位的套筒，以形成绝缘 护套和插座之间的接口，套筒位于护套的凹槽中并且被配置成将套管保持在护套上。

公开(公告)号：US20050175151A1

公开(公告)日：2005-08-11

申请号：US10708048

申请日：2004-02-05

Applicant: Bruce Dunham ,  Colin Wilson ,  John Price

Inventor： Bruce Dunham ,  Colin Wilson ,  John Price

IPC: G21K5/02 ,  A61B6/03 ,  G21K5/04 ,  H01J35/00 ,  H01J35/06 ,  H01J35/14 ,  H01J35/22 ,  H01J35/32 ,  H05G1/60

CPC classification number: A61B6/032 ,  A61B6/4028 ,  A61B6/4488 ,  H01J35/065 ,  H01J35/14 ,  H01J2235/02 ,  H01J2235/06

Abstract: An field emitter array system (10) includes a housing (50). An emitter array (80) generates an electron beam and has multiple emitter elements (81) that are disposed within the housing (50). Each of the emitter elements has multiple activation connections (92).

Abstract translation: 场发射器阵列系统（10）包括壳体（50）。 发射极阵列（80）产生电子束并具有设置在壳体（50）内的多个发射极元件（81）。 每个发射器元件具有多个激活连接（92）。

公开(公告)号：US12002648B2

公开(公告)日：2024-06-04

申请号：US18311683

申请日：2023-05-03

Applicant: Moxtek, Inc.

Inventor： Todd S. Parker ,  Kasey Otho Greenland

IPC: H01J35/16

CPC classification number: H01J35/16 ,  H01J2235/02 ,  H01J2235/16

Abstract: An x-ray tube 10 can have (a) an enclosure electrically-insulating a cathode 11 from an anode 12; (b) a coating-ring 18 on an inner-face of the enclosure, the coating-ring 18 encircling a longitudinal-axis 16 of the enclosure; and (c) an interruption-ring 19 located at the inner-face of the enclosure at a different location than the coating-ring 18. The interruption-ring 19 can encircle the longitudinal-axis 16 at a different location along the longitudinal-axis 16 with respect to the coating-ring 18. The interruption-ring 19 can encircle the longitudinal-axis 16 at a different radius from the longitudinal-axis 16 than the coating-ring 18. The coating-ring 18 and the interruption-ring 19 can reduce uneven electrical charge build-up on the inner-face of the enclosure, and can protect the triple-point.

公开(公告)号：US20180190465A1

公开(公告)日：2018-07-05

申请号：US15856521

申请日：2017-12-28

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Wenhui HUANG ,  Dongsheng ZHANG ,  Qingxiu JIN ,  Chengjun TAN ,  Donghai LIU ,  Qun LUO ,  Chuanxiang TANG

IPC: H01J35/06 ,  H01J35/08 ,  H01J35/14 ,  H05G1/02

CPC classification number: H01J35/06 ,  H01J35/08 ,  H01J35/14 ,  H01J35/16 ,  H01J2235/02 ,  H01J2235/068 ,  H05G1/02

Abstract: A cathode assembly, an X-ray source and a CT device are provided. The cathode assembly includes a ceramic plug having a first and second end portions. Four wiring terminals and a protruding positioning part are provided on the first end portion. An internal cavity is formed in the ceramic plug, and a cathode is provided therein. The cathode has a filament with a positive and negative electrode leads. A grid is provided on the second end portion and has a grid voltage signal line. The cathode has a cathode surface lead. The positive electrode lead, the negative electrode lead, the grid voltage signal line and the cathode surface lead are electrically connected to one of the wiring terminals, respectively. The ceramic socket has four wiring tubes which may be electrically connected with the four wiring terminals.