公开(公告)号：US09029795B2

公开(公告)日：2015-05-12

申请号：US14155207

申请日：2014-01-14

Applicant: Canon Kabushiki Kaisha

Inventor： Kazuhiro Sando ,  Noritaka Ukiyo ,  Yasue Sato ,  Yoshihiro Yanagisawa

IPC: H01J35/08 ,  G01N23/04

CPC classification number: H01J35/08 ,  H01J35/18 ,  H01J2235/087 ,  H01J2235/165 ,  H01J2235/186

Abstract: A radiation generating tube includes an electron emitting source configured to emit an electron beam; a target configured to generate radiation when the target is irradiated with the electron beam; a rear shield body having a tube-shaped electron passage with openings thereof at each end of the passage, and being located at the side of the electron emitting source with respect to the target, a first opening of the passage facing the electron emitting source and being separated from the electron emitting source, a second opening of the passage facing the target; and a brazing material joining the rear shield body with a peripheral edge of the target, at a position separated from the second opening. A closed space isolated from the electron passage is provided between the target and the rear shield body.

Abstract translation: 辐射发生管包括被配置为发射电子束的电子发射源; 被配置为当靶被电子束照射时产生辐射的目标; 后屏蔽体，其具有在通道的每个端部处具有开口的管状电子通道，并且相对于靶位于电子发射源的侧面，面向电子发射源的通道的第一开口和 与电子发射源分离，面向目标的通道的第二开口; 以及在与所述第二开口分离的位置处将所述后屏蔽体与所述靶的周缘连接的钎焊材料。 在目标和后屏蔽体之间设置与电子通道分离的封闭空间。

公开(公告)号：US20150124935A1

公开(公告)日：2015-05-07

申请号：US14506362

申请日：2014-10-03

Applicant: X-Illumina, Inc.

Inventor： Steven D. Hansen

IPC: H01J35/08 ,  H01J35/06

CPC classification number: H05G2/00 ,  H01J19/04 ,  H01J19/24 ,  H01J35/065 ,  H01J35/08 ,  H05H1/52

Abstract: Described herein are methods and systems relating to an x-ray generation system. In some embodiments, the system includes an electron beam acceleration region that generates an electron beam and accelerates electrons in the beam and a radiation generation region that (i) receives the electron beam and (ii) generates an electric field having an energy of greater than about 10E7 V/m without electrical breakdown of vacuum gaps. The electric field is configured to decelerate electrons in the electron beam sufficiently to generate x-ray energy.

Abstract translation: 这里描述了与x射线产生系统有关的方法和系统。 在一些实施例中，该系统包括产生电子束并加速该束中的电子的电子束加速区域和（i）接收电子束的辐射产生区域，以及（ii）产生具有大于 约10E7 V / m，无电绝缘真空间隙。 电场被配置为使电子束中的电子充分减速以产生x射线能量。

公开(公告)号：US20140369470A1

公开(公告)日：2014-12-18

申请号：US14293493

申请日：2014-06-02

Applicant: CANON KABUSHIKI KAISHA

Inventor： Noritaka Ukiyo ,  Yasue Sato ,  Yoshihiro Yanagisawa ,  Kazuhiro Sando

IPC: H01J35/16 ,  H01J35/06 ,  H01J35/08 ,  G01N23/04

CPC classification number: H01J35/16 ,  G21G4/08 ,  H01J19/42 ,  H01J19/56 ,  H01J35/08 ,  H01J37/16 ,  H01J2229/4827 ,  H01J2229/86 ,  H01J2235/087 ,  H01J2235/16 ,  H01J2235/165 ,  H01J2235/166 ,  H01J2237/16 ,  H05G1/04 ,  H05G1/06

Abstract: Provided is a radiation generating tube in which an insulating tube is prevented from being damaged by heat generation of a target or an electron emitting source during drive. Extending portions extending along an outer periphery of an insulating tube are provided to a cathode and an anode, respectively, and the insulating tube is joined to the extending portions to enhance the strength of joint portions. At the same time, the insulating tube can be deformed easily by setting a tube wall thickness of the insulating tube at a central portion in a longitudinal direction to be smaller than a tube wall thickness of an opening end, and thus the concentration of thermal stress on the joint portions caused by an increase in temperature of the cathode and the anode is alleviated.

Abstract translation: 提供一种辐射发生管，其中防止绝缘管在驱动期间被靶或电子发射源的发热而损坏。 在绝缘管的外周延伸的部分分别设置在阴极和阳极上，并且绝缘管与延伸部分接合以提高接头部分的强度。 同时，通过将绝缘管的长度方向中央部的管壁厚设定为小于开口端的管壁厚度，能够容易地变形绝缘管，因此热应力的集中 在阴极和阳极的温度升高引起的接合部分被减轻。

公开(公告)号：US20140362973A1

公开(公告)日：2014-12-11

申请号：US14241426

申请日：2012-08-29

Applicant: Takao Ogura ,  Yoshihiro Yanagisawa ,  Miki Tamura ,  Ichiro Nomura ,  Tamayo Hiroki ,  Shigeki Matsutani ,  Kazuyuki Ueda

Inventor： Takao Ogura ,  Yoshihiro Yanagisawa ,  Miki Tamura ,  Ichiro Nomura ,  Tamayo Hiroki ,  Shigeki Matsutani ,  Kazuyuki Ueda

IPC: H01J35/08 ,  H01J35/16 ,  G01N23/04

CPC classification number: H01J35/08 ,  G01N23/04 ,  G01N23/043 ,  H01J35/16 ,  H01J35/18 ,  H01J2235/087 ,  H01J2235/168 ,  H01J2235/186

Abstract: Provided is an X-ray generator including an electron passage in an electron-passage forming member; and a target on an insulative substrate. The transmission X-ray generator irradiates the target with electrons that have passed through the electron passage to generate X-rays. The target is provided at a central region of the substrate; the electron passage accommodates a secondary-X-ray generating section that generates X-rays by irradiation with electrons reflected from the target; the secondary-X-ray generating section and the target are disposed so that both of X-rays generated by direct irradiation of the target with the electrons and X-rays generated by irradiation of the secondary-X-ray generating section with the electrons reflected from the target are radiated to the outside; and at least part of the peripheral region of the substrate has higher transmittance for the X-rays generated at the secondary-X-ray generating section than the central region of the substrate.

Abstract translation: 提供一种电子通道形成构件中具有电子通道的X射线发生器， 和绝缘基板上的靶。 透射X射线发生器用已经通过电子通道的电子照射靶，产生X射线。 靶设在基板的中心区域; 电子通道容纳通过从靶标反射的电子的照射产生X射线的次X射线产生部分; 二次X射线产生部和靶被配置为使得通过用电子直接照射目标而产生的X射线和通过二次X射线产生部的照射而产生的X射线被反射 从目标射到外面; 并且衬底的周边区域的至少一部分对于在二次X射线产生部分处产生的X射线比衬底的中心区域具有更高的透射率。

公开(公告)号：US20140270086A1

公开(公告)日：2014-09-18

申请号：US14213372

申请日：2014-03-14

Applicant: The Board of Trustees of the Leland Stanford Junior University

Inventor： Anatoly Krasnykh

IPC: H01J35/08

CPC classification number: H05G2/00 ,  G01N23/083 ,  G21K5/00 ,  H05G1/20 ,  H05H7/22 ,  H05H9/02 ,  H05H2007/025 ,  H05H2007/122

Abstract: The relative position of an RF waveform and electron bunches in a linear accelerator is controlled by appropriate control of the accelerator electronics. Thus the energy given to any particular electron bunch can be controlled by altering the position of amplitude peaks of the RF driving field relative to the electron bunch. This control can be applied simultaneously and independently to all electron bunches in a bunch train. An output X-ray pulse is provided by the contributions of multiple electron bunches when they hit one or more targets. When more energetic electrons hit the target, more energetic X-rays are produced. Thus this controllable electron bunch energy and intensity can provide intra-pulse control of X-ray energy.

Abstract translation: 在线性加速器中的RF波形和电子束的相对位置通过加速器电子器件的适当控制来控制。 因此，可以通过改变RF驱动场相对于电子束的振幅峰值的位置来控制给予任何特定电子束的能量。 该控制可以同时且独立地应用于串列中的所有电子束。 输出X射线脉冲由多个电子束在击中一个或多个靶时的贡献提供。 当更多的能量电子撞击目标时，产生更多的能量X射线。 因此，这种可控的电子束能量和强度可以提供X射线能量的脉冲内控制。

公开(公告)号：US08837680B2

公开(公告)日：2014-09-16

申请号：US13469792

申请日：2012-05-11

Applicant: Osamu Tsujii ,  Noriaki Oguri ,  Takashi Ogura

Inventor： Osamu Tsujii ,  Noriaki Oguri ,  Takashi Ogura

IPC: H01J35/08 ,  H01J35/18

CPC classification number: H01J35/18 ,  H01J35/08 ,  H01J2235/081 ,  H01J2235/087 ,  H01J2235/183

Abstract: A radiation transmission type target to be used for a radiation tube has a target metal 12 placed on a substrate 13, and has an antistatic member 14 placed on a surface of the substrate 13 opposite to a surface on which the target metal 12 is placed. The target suppresses its electrostatic charge, and enables the radiation tube to stable operate.

Abstract translation: 用于辐射管的辐射透射型靶具有放置在基板13上的目标金属12，并且具有放置在基板13的与放置目标金属12的表面相反的表面上的抗静电部件14。 目标抑制其静电电荷，使辐射管稳定运行。

公开(公告)号：US20140233706A1

公开(公告)日：2014-08-21

申请号：US14239188

申请日：2012-08-14

Applicant: Frank Weigand

Inventor： Frank Weigand

IPC: H01J35/08

CPC classification number: H01J35/08 ,  A61N5/1001 ,  A61N2005/1022

Abstract: The present invention relates in particular to methods and apparatuses for generating and/or providing X-ray radiation with specific radiation characteristics, in particular with a specific radiation dose rate curve (10). In order to provide simple and cost efficient solution, it is provided according to the invention, that the X-ray radiation is generated and/or provided, by composing and/or adapting the X-ray radiation with the specific radiation characteristics, in particular with the specific radiation dose rate curve (10), proportionally from a first specification X-ray radiation with a defined first radiation characteristics, in particular with a predetermined first radiation dose rate curve (11) and a second specification X-ray radiation, which is different from the first specification X-ray radiation, with defined second radiation characteristics, in particular with a predetermined second radiation dose rate curve (12).

Abstract translation: 本发明特别涉及用于产生和/或提供具有特定辐射特征的X射线辐射的方法和装置，特别是与特定辐射剂量率曲线（10）。 为了提供简单且具有成本效益的解决方案，根据本发明提供了通过组合和/或适应具有特定辐射特性的X射线辐射来生成和/或提供X射线辐射，特别是 具有特定辐射剂量率曲线（10），与具有确定的第一辐射特性的第一规格X射线辐射成比例地，特别是具有预定的第一辐射剂量率曲线（11）和第二规格X射线辐射，其中 与具有限定的第二辐射特性的第一规格X射线辐射不同，特别是具有预定的第二辐射剂量率曲线（12）。

公开(公告)号：US20140126701A1

公开(公告)日：2014-05-08

申请号：US14124400

申请日：2012-05-28

Applicant: CANNON KABUSHKI kAISHA

Inventor： Takao Ogura ,  Yasue Sato ,  Nobuhiro Ito

IPC: H01J35/08

CPC classification number: H01J35/08 ,  H01J35/116 ,  H01J35/16 ,  H01J35/18 ,  H01J35/186 ,  H01J2235/081 ,  H01J2235/084 ,  H01J2235/183 ,  H05G1/06

Abstract: An X-ray emitting target including a diamond substrate, a first layer disposed on the diamond substrate and including a first metal, and a second layer disposed on the first layer and including a second metal whose atomic number is 42 or more and which has a thermal conductivity higher than that of the first metal. The layer thickness of the first layer is greater than or equal to 0.1 nm and smaller than or equal to 100 nm. The target is prevented from overheating, so that output variation due to rising temperature is suppressed. Thus it is possible to emit stable and high output X-rays.

Abstract translation: 一种X射线发射靶，包括金刚石衬底，设置在金刚石衬底上并包括第一金属的第一层和设置在第一层上的第二层，并且包括原子序数为42以上的第二金属， 导热系数高于第一金属。 第一层的层厚度大于或等于0.1nm且小于或等于100nm。 防止目标过热，从而抑制由温度升高引起的输出变化。 因此，可以发出稳定且高输出的X射线。

公开(公告)号：US08509386B2

公开(公告)日：2013-08-13

申请号：US12816216

申请日：2010-06-15

Applicant: David S. K. Lee ,  John E. Postman

Inventor： David S. K. Lee ,  John E. Postman

IPC: H01J35/10 ,  H01J35/08

CPC classification number: H01J35/10 ,  H01J35/108 ,  H01J2235/084

Abstract: In one example, an x-ray target comprises a target track, a substrate, and an optional backing. The target track includes a base material and a grain growth inhibitor to reduce or prevent microstructure grain growth in the base material. The target track can be included as part of an x-ray tube anode, either of a rotary form or a stationary form.

Abstract translation: 在一个示例中，x射线靶包括目标轨迹，基底和可选的背衬。 目标轨道包括基材和晶粒生长抑制剂，以减少或防止基材中的微结构晶粒生长。 目标轨道可以被包括作为X射线管阳极的一部分，无论是旋转形式还是固定形式。

公开(公告)号：US20130108024A1

公开(公告)日：2013-05-02

申请号：US13489446

申请日：2012-06-05

Applicant: Bruce Briant Parsons ,  Chi-Chieh Cheng

Inventor： Bruce Briant Parsons ,  Chi-Chieh Cheng

IPC: H01J35/08

CPC classification number: H01J35/08 ,  A61B6/508 ,  H01J35/18 ,  H01J2235/081 ,  H01J2235/087 ,  H01J2235/186

Abstract: The present invention provides a transmission type X-ray tube and a reflection type X-ray tube. The transmission type X-ray tube comprises a target and a filter material. The target has at least one element which produces X-rays as being excited. The X-rays comprise characteristic Kα and Kβ emission energies of the element for producing images of an object impinged by the X-rays. The filter material through which the X-rays pass has a k-edge absorption energy that is higher than the Kα emission energies and is lower than the Kβ emission energies. The thickness of the filter material is at least 10 microns and less than 3 millimeters.

Abstract translation: 本发明提供一种透射型X射线管和反射型X射线管。 透射型X射线管包括靶和过滤材料。 目标具有至少一个产生X射线激发的元素。 X射线包括用于产生被X射线撞击的物体的图像的元件的特征Kalpha和Kbeta发射能量。 X射线通过的过滤材料具有比Kalpha发射能量高的k边缘吸收能并且低于Kbeta发射能量。 过滤材料的厚度至少为10微米且小于3毫米。