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    X-RAY GENERATING TUBE, X-RAY GENERATING APPARATUS, AND RADIOGRAPHY SYSTEM
    2.
    发明申请
    X-RAY GENERATING TUBE, X-RAY GENERATING APPARATUS, AND RADIOGRAPHY SYSTEM 审中-公开

    公开(公告)号：US20190035593A1

    公开(公告)日：2019-01-31

    申请号：US16073290

    申请日：2016-12-28

    申请人： CANON KABUSHIKI KAISHA

    发明人： Kazuya Tsujino

    IPC分类号： H01J35/14 ,  H01J35/04 ,  H01J35/06 ,  H01J35/08 ,  H05G1/32 ,  H05G1/08

    摘要： The present disclosure provides a reliable X-ray generating tube that forms a focus with a stable size and shape. The X-ray generating tube includes an electron gun including an electron emitting portion, a plurality of grid electrodes, and an insulating support member that supports the plurality of grid electrodes. The electron gun includes a conductive section that hides the insulating support member to prevent the insulating support member from being directly viewed from an electron through path of electrons emitted from the electron emitting portion and passing through the grid electrodes.

    X-ray generation tube, X-ray generation device including the X-ray generation tube, and X-ray imaging system
    4.
    发明授权
    X-ray generation tube, X-ray generation device including the X-ray generation tube, and X-ray imaging system 有权
    X射线发生管，包括X射线产生管的X射线产生装置和X射线成像系统

    公开(公告)号：US09431206B2

    公开(公告)日：2016-08-30

    申请号：US14193601

    申请日：2014-02-28

    申请人： CANON KABUSHIKI KAISHA

    发明人： Kazuya Tsujino ,  Kazuyuki Ueda

    IPC分类号： H01J35/04 ,  H01J35/14 ,  G21K1/02

    CPC分类号： H01J35/045 ,  G21K1/02 ,  H01J35/14

    摘要： Provided is a high-output X-ray generation tube in which thermal damage to a target is reduced. The X-ray generation tube includes a target, an electron source, and a grid electrode having multiple electron passage apertures disposed between the target and the electron source. A source-side electron beam on the electron source side with respect to the grid electrode has a current density distribution, and the grid electrode has an aperture ratio distribution so that a region of the source-side electron beam in which a current density is largest is aligned with a region of the grid electrode in which an aperture ratio is smallest.

    摘要翻译： 提供了对目标的热损伤降低的高输出X射线发生管。 X射线发生管包括靶，电子源和具有设置在靶和电子源之间的多个电子通过孔的栅电极。 电子源侧的源侧电子束相对于栅电极具有电流密度分布，并且栅极具有开口率分布，使得电流密度最大的源侧电子束的区域 与孔径比最小的栅电极的区域对准。

    X-RAY GENERATION TUBE, X-RAY GENERATION APPARATUS, AND RADIOGRAPHY SYSTEM
    6.
    发明申请
    X-RAY GENERATION TUBE, X-RAY GENERATION APPARATUS, AND RADIOGRAPHY SYSTEM 有权
    X射线发生管，X射线发生装置和放射系统

    公开(公告)号：US20160155598A1

    公开(公告)日：2016-06-02

    申请号：US14950570

    申请日：2015-11-24

    申请人： CANON KABUSHIKI KAISHA

    发明人： Takashi Shiozawa ,  Kazuya Tsujino ,  Koichi Tsunoda ,  Nobuhiro Ito ,  Kazuhiro Sando ,  Yoichi Ikarashi

    IPC分类号： H01J35/08 ,  H01J35/14 ,  H05G1/10 ,  H01J35/06

    CPC分类号： H01J35/08 ,  H01J35/06 ,  H01J35/14 ,  H01J35/16 ,  H01J2235/087 ,  H01J2235/088 ,  H01J2235/168 ,  H05G1/10

    摘要： An X-ray generation tube includes: an anode including a target configured to generate X-rays under irradiation of electrons, and an anode member electrically connected to the target; a cathode including an electron emitting source configured to emit an electron beam in a direction towards the target, and a cathode member electrically connected to the electron emitting source; and an insulating tube extending between the anode member and the cathode member. The anode further includes an inner circumferential anode layer electrically connected to the anode member, the inner circumferential anode layer extending along an inner circumferential face of the insulating tube, and is remote from the cathode member.

    摘要翻译： X射线发生管包括：阳极，其包括被配置为在电子照射下产生X射线的靶;以及阳极，电连接到靶; 包括电子发射源的阴极，被配置为沿着朝向所述靶的方向发射电子束;以及阴极部件，电连接到所述电子发射源; 以及在阳极部件和阴极部件之间延伸的绝缘管。 阳极还包括与阳极部件电连接的内周阳极层，内周阳极层沿着绝缘管的内周面延伸，远离阴极部件。

    Multi-radiation unit and radiation imaging system including the unit
    7.
    发明授权
    Multi-radiation unit and radiation imaging system including the unit 有权
    多辐射单元和辐射成像系统包括单元

    公开(公告)号：US09116096B2

    公开(公告)日：2015-08-25

    申请号：US14076528

    申请日：2013-11-11

    申请人： CANON KABUSHIKI KAISHA

    发明人： Kazushige Utsumi ,  Kazuya Tsujino ,  Kazuyuki Ueda

    IPC分类号： G01N23/04 ,  H05G1/70

    CPC分类号： G01N23/04 ,  G01N2223/204 ,  H01J2235/186 ,  H05G1/70

    摘要： A multi-radiation unit includes: a multi-radiation tube which has a plurality of electron sources, a plurality of targets and an intermediate electrode having openings through which electrons emitted from the electron sources pass; a selection circuit that allows electrons to be emitted from a selected electron source selected from the plurality of electron sources; an intermediate electrode potential defining unit that defines a potential of the intermediate electrode; a storage unit that stores, for each of the plurality of electron sources, an electrostatic control condition of the intermediate electrode for obtaining a predetermined irradiated state of a target corresponding to the selected electron source; and a changing unit that changes, when electrons are emitted from the selected electron source, the electrostatic control condition of the intermediate electrode based on the electrostatic control condition stored in the storage unit for the selected electron source.

    摘要翻译： 多辐射单元包括：具有多个电子源的多辐射管，多个靶和具有从电子源发射的电子通过的开口的中间电极; 选择电路，其允许从选自所述多个电子源的所选择的电子源发射电子; 限定所述中间电极的电位的中间电极电位限定单元; 存储单元，其针对所述多个电子源中的每一个存储用于获得与所选择的电子源相对应的目标的预定照射状态的所述中间电极的静电控制条件; 以及改变单元，当从所选择的电子源发射电子时，基于存储在所选择的电子源的存储单元中的静电控制条件，改变中间电极的静电控制状态。

    X-ray generating tube, X-ray generating apparatus, and radiography system
    8.
    发明授权
    X-ray generating tube, X-ray generating apparatus, and radiography system 有权

    公开(公告)号：US11114268B2

    公开(公告)日：2021-09-07

    申请号：US16073290

    申请日：2016-12-28

    申请人： CANON KABUSHIKI KAISHA

    发明人： Kazuya Tsujino

    IPC分类号： H01J35/00 ,  H01J35/04 ,  H01J35/14 ,  H01J35/08 ,  H01J35/06 ,  H05G1/08 ,  H05G1/32 ,  H01J35/18

    摘要： The present disclosure provides a reliable X-ray generating tube that forms a focus with a stable size and shape. The X-ray generating tube includes an electron gun including an electron emitting portion, a plurality of grid electrodes, and an insulating support member that supports the plurality of grid electrodes. The electron gun includes a conductive section that hides the insulating support member to prevent the insulating support member from being directly viewed from an electron through path of electrons emitted from the electron emitting portion and passing through the grid electrodes.

    X-ray generating tube, X-ray generating apparatus, and radiography system
    9.
    发明授权
    X-ray generating tube, X-ray generating apparatus, and radiography system 有权

    公开(公告)号：US10105112B2

    公开(公告)日：2018-10-23

    申请号：US15022905

    申请日：2014-09-10

    申请人： CANON KABUSHIKI KAISHA

    发明人： Kazushige Utsumi ,  Nobuhiro Ito ,  Kazuyuki Ueda ,  Kazuya Tsujino

    IPC分类号： H01J35/08 ,  A61B6/00 ,  A61B6/02 ,  A61B6/03 ,  G21K1/02

    摘要： An X-ray generating tube including a transmission target having a minute focal spot. The X-ray generating tube includes a transmission target having a first surface configured to be irradiated with an electron beam; an electron emitting source configured to irradiate the transmission target with the electron beam obliquely; and a tubular forward shield member to define an extraction angle of an extracted X-ray beam. The forward shield member is disposed such that a central axis of the electron beam and a central axis of the X-ray beam whose extraction angle is defined are located at the same side with respect to a virtual normal plane perpendicular to the surface and a projection of the central axis of the electron beam to the surface.