公开(公告)号：US09437390B2

公开(公告)日：2016-09-06

申请号：US14437491

申请日：2012-10-22

Applicant: SHIMADZU CORPORATION

Inventor： Sadamu Tomita ,  Masaaki Ukita

IPC: H01J35/30 ,  H01J35/14 ,  H01J35/16

CPC classification number: H01J35/14 ,  H01J35/16 ,  H01J35/305 ,  H01J2235/02 ,  H01J2235/16 ,  H01J2235/168

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08340250B2

公开(公告)日：2012-12-25

申请号：US12554164

申请日：2009-09-04

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

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

IPC: H01J35/00

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：US20110058651A1

公开(公告)日：2011-03-10

申请号：US12878106

申请日：2010-09-09

Applicant: JENS FUERST ,  MATTHIAS GOLDAMMER ,  MARKUS KOWARSCHIK ,  JUERGEN STEPHAN

Inventor： JENS FUERST ,  MATTHIAS GOLDAMMER ,  MARKUS KOWARSCHIK ,  JUERGEN STEPHAN

IPC: G01B15/06

CPC classification number: H01J35/065 ,  G01N23/046 ,  G01N2223/419 ,  H01J35/04 ,  H01J2235/02 ,  H01J2235/062 ,  H01J2235/068

Abstract: In a device and a method for testing an object for material defects, a multi-emitter x-ray source, at least one x-ray detector and a control system to activate emitters of the multi-emitter x-ray source are thereby used. A selective activation of individual emitters or of a portion of the emitters is conducted according to the requirements of at least one item of information related to the tested object. The Flexible and low-cost materials testing is achieved.

Abstract translation: 在用于测试材料缺陷的物体的装置和方法中，由此使用多发射体x射线源，至少一个X射线检测器和用于激活多发射体x射线源的发射体的控制系统。 单个发射器或一部分发射器的选择性激活是根据至少一项与测试对象有关的信息的要求进行的。 实现灵活且低成本的材料测试。

公开(公告)号：US07192031B2

公开(公告)日：2007-03-20

申请号：US10708048

申请日：2004-02-05

Applicant: Bruce M. Dunham ,  Colin R. Wilson ,  John Scott Price

Inventor： Bruce M. Dunham ,  Colin R. Wilson ,  John Scott Price

IPC: H01J35/00 ,  H01J35/06

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：US6141401A

公开(公告)日：2000-10-31

申请号：US198709

申请日：1998-11-24

Applicant: Dieter Gerling

Inventor： Dieter Gerling

IPC: H05G1/20 ,  H01J35/02 ,  H05G1/30 ,  H05G1/66 ,  H01J35/10 ,  H02P1/26

CPC classification number: H05G1/30 ,  H01J35/02 ,  H01J2235/02 ,  H01J2235/10

Abstract: The invention relates to a drive device for a rotary anode of an X-ray tube, including an induction motor (13) whereto an alternating voltage can be applied by means of an inverter (20), and also including a control unit (22) for controlling the inverter (20), the switching frequency of the inverter (20) being variable in time, in conformity with a frequency time characteristic, by means of the control unit (22). It is the object of the invention to provide a drive device for a rotary anode of an X-ray tube as well as a suitable control method which ensures the temperature-independent starting up of the rotary anode. The invention is characterized in that in order to start up the rotary anode to an operating speed independently of the operating temperature of the rotor (12), a fixed, selectable starting up characteristic is provided as the frequency time characteristic, that the starting-up characteristic has at least a low-temperature segment (II) and at least a high-temperature segment (I), the mean slope of the starting up characteristic in the low-temperature segment (II) being optimized for the lower operating temperature range while it is optimized for the upper operating temperature range of the rotor (12) in the high-temperature segment (I).

Abstract translation: 本发明涉及一种用于X射线管的旋转阳极的驱动装置，包括一个感应电机（13），通过一个逆变器（20）可以施加一个交流电压，并且还包括一个控制单元（22） 为了控制逆变器（20），借助于控制单元（22），逆变器（20）的开关频率随着频率时间特性而在时间上是可变的。 本发明的目的是提供一种用于X射线管的旋转阳极的驱动装置以及确保旋转阳极独立温度启动的合适的控制方法。 本发明的特征在于，为了将旋转阳极独立于转子（12）的工作温度启动到运行速度，提供固定的可选择的启动特性作为频率时间特性，即启动 特性至少具有低温段（II）和至少高温段（I），低温段（II）中的启动特性的平均斜率在较低工作温度范围内被优化，而 对于高温段（I）中的转子（12）的上部工作温度范围进行了优化。

公开(公告)号：US09883576B2

公开(公告)日：2018-01-30

申请号：US14898438

申请日：2014-06-13

Applicant: The Curators of the University of Missouri

Inventor： Scott D. Kovaleski ,  Brady B. Gall ,  Andrew L. Benwell ,  Peter Norgard ,  James Vangordon

IPC: H05H3/06 ,  H01J35/14 ,  H01J35/06 ,  H05G1/10 ,  H05G1/06 ,  H05H1/24

CPC classification number: H05H3/06 ,  H01J35/06 ,  H01J35/065 ,  H01J35/14 ,  H01J2235/02 ,  H05G1/06 ,  H05G1/10 ,  H05H2001/2481

Abstract: A low-power, compact piezoelectric particle emitter for emitting particles such as X-rays and neutrons. A piezoelectric transformer crystal receives an input voltage at an input end and generates a higher output voltage at an output electrode disposed at an output end. The emitter is in a vacuum and the output voltage creates an electric field. A charged particle source is positioned relative a target such that charged particles from the charged particle source are accelerated by the electric field toward the target. Interaction between the accelerated charged particles and the target causes one of X-rays and neutrons to be emitted.

公开(公告)号：US20160284503A1

公开(公告)日：2016-09-29

申请号：US15081098

申请日：2016-03-25

Applicant: KABUSHIKI KAISHA TOSHIBA ,  Toshiba Electron Tubes & Devices Co., Ltd.

Inventor： Miki WATANABE ,  Hidero Anno ,  Tomonari Ishihara

IPC: H01J35/06

CPC classification number: H01J35/06 ,  H01J2235/02

Abstract: According to one embodiment, an X-ray tube includes an envelope, an anode and a cathode structure. The anode and the cathode structure are provided opposite to each other in the envelope. The cathode structure includes a cathode and an insulator which supports the cathode and is attached to the envelope. The insulator includes a basal portion attached to the envelope, a support portion which supports the cathode at a distal end projecting from the basal portion, and a tubular projection portion which is provided to project from the basal portion and opposite to a periphery of the support portion.

Abstract translation: 根据一个实施例，X射线管包括外壳，阳极和阴极结构。 阳极和阴极结构在外壳中彼此相对设置。 阴极结构包括阴极和支撑阴极并连接到封套的绝缘体。 绝缘体包括附接到外壳的基部，在从基部突出的远端支撑阴极的支撑部，以及设置成从基部突出并与支撑体的周边相对突出的管状突出部 一部分。

公开(公告)号：US09384932B2

公开(公告)日：2016-07-05

申请号：US13881347

申请日：2011-10-27

Applicant: Luke Perkins

Inventor： Luke Perkins

IPC: H01J29/02 ,  H01J3/02 ,  H01J29/48 ,  H01J29/96 ,  H01J31/50 ,  H01J37/248 ,  H05H3/06 ,  H01C3/14 ,  H01C17/065

CPC classification number: H01J29/02 ,  H01C3/14 ,  H01C17/06553 ,  H01J3/027 ,  H01J29/485 ,  H01J29/96 ,  H01J31/50 ,  H01J37/248 ,  H01J2235/02 ,  H05H3/06

Abstract: An annular ceramic washer has inner and outer cylindrical surfaces, first and second annular surfaces, and a winding path thick film resistor located on the inner surface. Metal washers are preferably brazed to the end ring surfaces. The annular ceramic washer is useful in vacuum tube applications in establishing a voltage on a target utilizing the voltage of an electrode coupled to the winding path thick film resistor.

Abstract translation: 环形陶瓷垫圈具有内圆柱形表面和外圆柱形表面，第一和第二环形表面以及位于内表面上的卷绕路径厚膜电阻器。 金属垫圈优选钎焊到端环表面。 环形陶瓷垫圈可用于使用耦合到绕组路径厚膜电阻器的电极的电压来建立目标上的电压的真空管应用中。

公开(公告)号：US09349563B2

公开(公告)日：2016-05-24

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: H01J5/18 ,  H01J35/02 ,  H05G1/70 ,  H01J35/18 ,  H01J35/04 ,  H05G1/06

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：US20160120016A1

公开(公告)日：2016-04-28

申请号：US14898438

申请日：2014-06-13

Applicant: THE CURATORS OF THE UNIVERSITY OF MISSOURI

Inventor： Scott D. Kovaleski ,  Brady B. Gall ,  Andrew L. Benswell ,  Peter Norgard ,  James Vangordon

IPC: H05H3/06 ,  H05G1/10 ,  H01J35/06

CPC classification number: H05H3/06 ,  H01J35/06 ,  H01J35/065 ,  H01J35/14 ,  H01J2235/02 ,  H05G1/06 ,  H05G1/10 ,  H05H2001/2481

Abstract: A low-power, compact piezoelectric particle emitter for emitting particles such as X-rays and neutrons. A piezoelectric transformer crystal receives an input voltage at an input end and generates a higher output voltage at an output electrode disposed at an output end. The emitter is in a vacuum and the output voltage creates an electric field. A charged particle source is positioned relative a target such that charged particles from the charged particle source are accelerated by the electric field toward the target. Interaction between the accelerated charged particles and the target causes one of X-rays and neutrons to be emitted.

Abstract translation: 用于发射诸如X射线和中子的粒子的低功率紧凑型压电粒子发射器。 压电变压器晶体在输入端接收输入电压，并在设置在输出端的输出电极处产生较高的输出电压。 发射极处于真空状态，输出电压产生电场。 带电粒子源相对于靶定位，使得来自带电粒子源的带电粒子通过电场朝向靶加速。 加速带电粒子与目标物之间的相互作用导致发射X射线和中子之一。