公开(公告)号：US20180047540A1

公开(公告)日：2018-02-15

申请号：US15709426

申请日：2017-10-23

申请人： Rad Source Technologies, Inc.

发明人： Phillip Kent AUSBURN

IPC分类号： H01J35/06 ,  H01J35/10

CPC分类号： H01J35/06 ,  A61B6/40 ,  A61B6/4488 ,  A61B6/482 ,  H01J1/16 ,  H01J1/40 ,  H01J1/94 ,  H01J19/32 ,  H01J19/48 ,  H01J19/57 ,  H01J19/82 ,  H01J35/08 ,  H01J35/105 ,  H01J35/116 ,  H01J35/186 ,  H01J35/32 ,  H01J2235/085 ,  H01J2235/16 ,  H01J2893/0006 ,  H01J2893/0012

摘要： A high dose output, through transmission and reflective target x-ray tube and methods of use includes, in general an x-ray tube for accelerating electrons under a high voltage potential having an evacuated high voltage housing, a hemispherical shaped through and reflective transmission target anode disposed in said housing, a cathode structure to deflect the electrons toward the hemispherical anode disposed in said housing, a filament located in the geometric center of the anode hemisphere disposed in said housing, a power supply connected to said cathode to provide accelerating voltage to the electrons.

公开(公告)号：US20170365440A1

公开(公告)日：2017-12-21

申请号：US15696919

申请日：2017-09-06

申请人： TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

发明人： Yuanjing LI ,  Yaohong LIU ,  Jinsheng LIU ,  Huaping TANG ,  Chuanxiang TANG ,  Huaibi CHEN ,  Xinshui YAN

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

CPC分类号： H01J35/14 ,  H01J35/16 ,  H01J35/30 ,  H01J2235/16

摘要： An apparatus and method to generate distributed x-rays. A hot cathode of an electron gun is used in vacuum to generate electron beams having certain initial movement energy and speed. Periodic scanning is performed with the initial low-energy electron beams, which are thus caused to be reciprocally deflected. A current-limiting device is provided in the travel path of the electron beams along the direction of the reciprocal deflection. Through holes arranged in an array on the current-limiting device, only part of the electron beams targeting specific positions can pass to form sequential electron beam currents distributed in an array. These electron beam currents are accelerated by a high-voltage electric field to obtain high energy, bombard an anode target, and thus sequentially generate corresponding focus spots and x-rays distributed in an array at the anode target.

公开(公告)号：US09589759B2

公开(公告)日：2017-03-07

申请号：US14614781

申请日：2015-02-05

申请人： SHIMADZU CORPORATION

发明人： Akihiro Miyaoka

IPC分类号： H01J35/02 ,  H01J35/16 ,  H01J1/88 ,  H01J19/56 ,  H01J37/16 ,  H05G1/04 ,  A61B6/00 ,  H01J5/02 ,  H01J1/40 ,  H01J5/04 ,  H01J35/04 ,  H05G1/02 ,  H01J35/14 ,  H01J35/28

CPC分类号： H01J35/16 ,  A61B6/40 ,  A61B6/44 ,  A61B2560/0406 ,  H01J1/40 ,  H01J1/88 ,  H01J5/02 ,  H01J5/04 ,  H01J19/56 ,  H01J35/02 ,  H01J35/04 ,  H01J35/14 ,  H01J35/28 ,  H01J37/16 ,  H01J2235/083 ,  H01J2235/087 ,  H01J2235/16 ,  H01J2235/163 ,  H01J2235/186 ,  H05G1/02 ,  H05G1/04

摘要： An X-ray generator is provided using a transmission type target having a long life span, where it is possible to change the point for generating X-rays on the surface of the target while maintaining the vacuum chamber in a high vacuum state. A portion of a vacuum chamber 1 that includes a target 2 is linked to a main body portion 1a of the chamber through a linking member 5 as a movable chamber portion 1b. A fixed anode 12 is provided between the target 2 and the electrode 10 at the final stage from among a group of electrodes 8, 9 and 10 for electrostatically accelerating and converging electrons from an electron source 7 and is fixed to the main body portion 1a of the chamber in order to prevent the form of the electrical field from changing when the movable chamber portion 1b is shifted.

摘要翻译： 使用寿命长的透射型靶设置X射线发生器，能够在将真空室保持在高真空状态的同时，改变在靶表面产生X射线的点。 包括目标2的真空室1的一部分通过作为可移动室部分1b的连接构件5连接到室的主体部分1a。 在一组电极8,9和10之间，在靶2和电极10之间设置固定阳极12，用于从电子源7静电加速和会聚电子，并固定到电极10的主体部分1a 该室为了防止当可动室部分1b移动时电场的形式改变。

公开(公告)号：US09437390B2

公开(公告)日：2016-09-06

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： H01J35/30 ,  H01J35/14 ,  H01J35/16

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。

公开(公告)号：US20150179388A1

公开(公告)日：2015-06-25

申请号：US14408085

申请日：2012-06-14

申请人： Oscar Hemberg ,  Tomi Tuohimaa ,  Per Takman

发明人： Oscar Hemberg ,  Tomi Tuohimaa ,  Per Takman

IPC分类号： H01J29/62 ,  G21K1/08 ,  G21K5/04 ,  H01J35/08 ,  H01J35/14

CPC分类号： H01J29/62 ,  G21K1/08 ,  G21K5/04 ,  H01J35/04 ,  H01J35/08 ,  H01J35/14 ,  H01J2235/082 ,  H01J2235/16

摘要： In an electron irradiation system, a gas-tight housing encloses a cathode region and an irradiation region, which communicate through at least an aperture. In the cathode region, there is arranged a high-voltage cathode for emitting an electron beam. In the irradiation region, there is an irradiation site arranged to accommodate a stationary or moving object to be irradiated. The migration of cathode-degrading debris is limited by means of an electric field designed to prevent positively charged particles from entering the cathode region via the aperture. The invention can be embodied with an axial electric field, which realizes an energy threshold, or a transversal field which deflects charged particles away from trajectories leading into the cathode region.

摘要翻译： 在电子照射系统中，气密壳体包围通过至少一个孔连通的阴极区域和照射区域。 在阴极区域中设置有用于发射电子束的高电压阴极。 在照射区域中，存在被配置为容纳待照射的静止或移动物体的照射部位。 阴极降解碎屑的迁移通过设计用于防止带正电荷的颗粒经由孔径进入阴极区域的电场而受到限制。 本发明可以用实现能量阈值的轴向电场或使带电粒子远离导入阴极区域的横向场来实现。

公开(公告)号：US20140177807A1

公开(公告)日：2014-06-26

申请号：US14131317

申请日：2012-08-06

申请人： John Lewellen ,  John Noonan

发明人： John Lewellen ,  John Noonan

IPC分类号： H01J35/08

CPC分类号： H01J35/08 ,  A61B6/06 ,  A61B6/40 ,  A61B6/4035 ,  G02B27/30 ,  G21K1/02 ,  G21K1/025 ,  G21K1/08 ,  G21K1/087 ,  G21K1/093 ,  H01J1/06 ,  H01J35/12 ,  H01J35/18 ,  H01J35/30 ,  H01J2235/082 ,  H01J2235/087 ,  H01J2235/1204 ,  H01J2235/122 ,  H01J2235/1262 ,  H01J2235/1283 ,  H01J2235/1291 ,  H01J2235/16 ,  H01J2235/186 ,  H05G1/52

摘要： Direct write electron-beam-to-x-ray converters are described, which may be programmed to focus x-rays into an arbitrary shape to provide spatial and intensity modulation to irradiate a malady such as a tumor. An integrated structure of the electron beam to x-ray converter comprises a collimating grid containing a target fluid. The collimating grid comprises a plurality of individual cells enclosed in a housing assembly. An electron beam aimed at a selected individual cell of the collimating grid may be converted to an x-ray beam within the target fluid.

摘要翻译： 描述了直接写入电子束到x射线转换器，其可被编程以将x射线聚焦成任意形状以提供空间和强度调制以照射诸如肿瘤的疾病。 电子束与x射线转换器的一体结构包括一个包含目标流体的准直栅格。 准直栅格包括封闭在壳体组件中的多个单个电池。 瞄准准直栅格的选定单个单元的电子束可以被转换成目标流体内的X射线束。

公开(公告)号：US20130022173A1

公开(公告)日：2013-01-24

申请号：US13554379

申请日：2012-07-20

申请人： Jin Woo JEONG ,  Jun Tae KANG ,  Yoon Ho SONG ,  Jae Woo KIM

发明人： Jin Woo JEONG ,  Jun Tae KANG ,  Yoon Ho SONG ,  Jae Woo KIM

IPC分类号： H01J35/16 ,  H01J35/04 ,  H01J35/08

CPC分类号： H01J35/04 ,  H01J35/08 ,  H01J35/16 ,  H01J2235/16

摘要： The present disclosure relates to a stacked x-ray tube apparatus using a spacer, and more particularly, to a stacked x-ray tube apparatus using a spacer that makes it possible to reduce the size of an x-ray tube by forming a stacked structure, with electric insulation and predetermined gaps maintained for each electrode, by forming a stacked x-ray tube by inserting insulating spacers (for example, ceramic) between a exhausting port, a cathode, a gate, a focusing electrode, and an anode and bonding them with an adhesive substance, and then inserting a spacer between a field emitter on a cathode substrate and a gate hole connected with a gate electrode.

摘要翻译： 本公开涉及一种使用间隔物的叠层X射线管装置，更具体地说，涉及一种使用间隔件的层叠X射线管装置，其可以通过形成堆叠结构来减小X射线管的尺寸 通过在排气口，阴极，栅极，聚焦电极和阳极之间插入绝缘间隔物（例如陶瓷）来形成堆叠的x射线管，并且通过在每个电极上保持电绝缘和预定间隙 然后在阴极基板的场发射体和与栅电极连接的栅极孔之间插入间隔物。

公开(公告)号：US08036341B2

公开(公告)日：2011-10-11

申请号：US12191990

申请日：2008-08-14

申请人： David S. K. Lee

发明人： David S. K. Lee

IPC分类号： H01J35/08

CPC分类号： H01J35/08 ,  H01J35/16 ,  H01J2235/081 ,  H01J2235/084 ,  H01J2235/088 ,  H01J2235/16 ,  H01J2235/165

摘要： Stationary x-ray target assemblies manufactured using a metal deposition process to form one or more metal layers of the target. In particular, the metal deposition process is used to form an x-ray target metal layer and/or a stress buffer zone on an x-ray target substrate. The stress buffer zone improves material properties of the metals and/or the bonding between the x-ray target metal layer and the substrate. Improved bonding between the x-ray target metal layer and the substrate also improves the heat dissipation properties of the stationary x-ray target assembly.

摘要翻译： 使用金属沉积工艺制造的固定x射线靶组件以形成靶的一个或多个金属层。 特别地，使用金属沉积工艺在x射线靶基底上形成X射线靶金属层和/或应力缓冲区。 应力缓冲区改善金属的材料性质和/或x射线靶金属层与基底之间的结合。 X射线靶金属层和基片之间的改善的结合也改善了固定x射线靶组件的散热性能。

公开(公告)号：US07783011B2

公开(公告)日：2010-08-24

申请号：US12391656

申请日：2009-02-24

申请人： Yuichi Ito ,  Toru Moriike ,  Seiji Hosoya ,  Yoshihiko Dan ,  Makoto Otsuka

发明人： Yuichi Ito ,  Toru Moriike ,  Seiji Hosoya ,  Yoshihiko Dan ,  Makoto Otsuka

IPC分类号： H01J35/02

CPC分类号： H01J35/06 ,  H01J9/26 ,  H01J35/16 ,  H01J35/32 ,  H01J2235/023 ,  H01J2235/06 ,  H01J2235/087 ,  H01J2235/16 ,  H01J2235/186

摘要： A transmission type X-ray tube includes an electrode lead (4) holding a cathode filament (7) and a stem unit (1) to which a sealing member (5), an exhaust tube (2), and the like are attached by brazing, and an irradiation window frame (8) having an X-ray irradiation window (9) attached by brazing. The other end side (52) of the sealing member (5) is attached to an open end (83) of the irradiation window frame (8) by welding. Thus, it is possible to obtain a high-quality transmission type X-ray tube having a long service life at a low cost.

摘要翻译： 透射型X射线管包括：保持阴极丝（7）的电极引线（4）和通过密封部件（5），排气管（2）等附着在其上的杆单元（1） 钎焊和具有通过钎焊附着的X射线照射窗（9）的照射窗框（8）。 密封构件（5）的另一端（52）通过焊接附接到照射窗框架（8）的开口端（83）。 因此，可以以低成本获得具有长使用寿命的高质量透射型X射线管。

公开(公告)号：US20070211862A1

公开(公告)日：2007-09-13

申请号：US11547721

申请日：2005-03-31

申请人： Yuichi Ito ,  Toru Moriike ,  Seiji Hosoya ,  Yoshihiko Dan ,  Makoto Otsuka

发明人： Yuichi Ito ,  Toru Moriike ,  Seiji Hosoya ,  Yoshihiko Dan ,  Makoto Otsuka

IPC分类号： H01J35/18 ,  H01J9/00

CPC分类号： H01J35/06 ,  H01J9/26 ,  H01J35/16 ,  H01J35/32 ,  H01J2235/023 ,  H01J2235/06 ,  H01J2235/087 ,  H01J2235/16 ,  H01J2235/186

摘要： A transmission type X-ray tube includes an electrode lead (4) holding a cathode filament (7) and a stem unit (1) to which a sealing member (5), an exhaust tube (2), and the like are attached by brazing, and an irradiation widow frame (8) having an X-ray irradiation window (9) attached by brazing. The other end side (52) of the sealing member (5) is attached to an open end (83) of the irradiation window frame (8) by welding. Thus, it is possible to obtain a high-quality transmission type X-ray tube having a long service life at a low cost.

摘要翻译： 透射型X射线管包括：保持阴极丝（7）的电极引线（4）和通过密封部件（5），排气管（2）等附着在其上的杆单元（1） 钎焊和具有通过钎焊附着的X射线照射窗（9）的照射寡妇框架（8）。 密封构件（5）的另一端（52）通过焊接附接到照射窗框架（8）的开口端（83）。 因此，可以以低成本获得具有长使用寿命的高质量透射型X射线管。