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    Rotary anode type X-ray tube
    11.
    发明申请
    Rotary anode type X-ray tube 有权
    旋转阳极型X射线管

    公开(公告)号：US20050089144A1

    公开(公告)日：2005-04-28

    申请号：US10927105

    申请日：2004-08-27

    Applicant: Harunobu Fukushima ,  Yasuo Yoshii ,  Hitoshi Hattori ,  Koichi Kitade ,  Mitsuo Iwase ,  Hironori Nakamuta

    Inventor： Harunobu Fukushima ,  Yasuo Yoshii ,  Hitoshi Hattori ,  Koichi Kitade ,  Mitsuo Iwase ,  Hironori Nakamuta

    IPC: H01J35/10 ,  H01J35/24 ,  H01J35/26 ,  H01J35/28

    CPC classification number: H01J35/101 ,  H01J2235/1006 ,  H01J2235/106

    Abstract: In a rotary anode type X-ray tube, a rotary anode and a rotary structure supporting the anode are arranged within the vacuum envelope. A stationary shaft has a middle section which is fitted into a cylindrical portion of the rotary structure, and a dynamic pressure type radial bearing is arranged between the cylindrical portion and the middle section. The stationary shaft also has a first section between one end of the middle section and one end of the stationary shaft, and a second section between the other end of the middle section and the other end of the stationary shaft, which are fixed to the vacuum envelope. A transverse stiffness of the second section is set to be larger than a transverse stiffness of the first section, and a center of gravity is positioned in the middle section.

    Abstract translation: 在旋转阳极型X射线管中，旋转阳极和支撑阳极的旋转结构布置在真空外壳内。 固定轴具有嵌入旋转结构的圆筒部的中间部，并且在圆筒部与中间部之间配置有动压型径向轴承。 固定轴还具有在中间部分的一端和固定轴的一端之间的第一部分，以及固定在真空的中间部分的另一端和固定轴的另一端之间的第二部分 信封。 第二部分的横向刚度被设定为大于第一部分的横向刚度，并且重心位于中间部分。

    Anode mounting apparatus with thermal growth compensation for x-ray tube
    12.
    发明授权
    Anode mounting apparatus with thermal growth compensation for x-ray tube 失效
    阳极安装装置，具有X射线管的热增长补偿

    公开(公告)号：US5867556A

    公开(公告)日：1999-02-02

    申请号：US957056

    申请日：1997-10-24

    Applicant: Douglas J. Snyder ,  Thomas Block ,  Dale G. Chrisien

    Inventor： Douglas J. Snyder ,  Thomas Block ,  Dale G. Chrisien

    IPC: H01J35/28

    CPC classification number: H01J35/10

    Abstract: In an X-ray tube having a housing, an outer frame for providing a vacuum, a cathode mounted in the outer frame to project a stream of electrons, and an anode disposed to receive the electron stream at a focal spot position to produce X-rays, apparatus is provided for selectively mounting the anode within the housing. More particularly, the apparatus is disposed to respond to the heat generated by the X-ray production process to provide compensation for undesirable effects resulting from thermal expansion of the anode. The apparatus generally comprises an anode frame structure disposed to support the anode for rotation about a specified axis, and further comprises an anode plate joined to the frame structure for locating the anode at an initial position, in spaced-apart relationship with the cathode and with the aperture of a collimator in fixed relation to the tube, and for displacing the anode away from the initial position, in a direction opposite to the direction of anode thermal expansion, to provide compensation therefor. A compliant plate mounting arrangement is provided for selectively attaching the anode plate to the housing.

    Abstract translation: 在具有壳体的X射线管，用于提供真空的外框架，安装在外框架中以投射电子流的阴极以及设置成在焦点位置处接收电子流以产生X射线的X射线管， 提供了用于选择性地将阳极安装在壳体内的装置。 更具体地说，该设备被设置为响应由X射线生产过程产生的热量，以补偿由阳极的热膨胀引起的不良影响。 该装置通常包括阳极框架结构，其设置成支撑阳极以围绕指定的轴线旋转，并且还包括连接到框架结构的阳极板，用于将阳极定位在与阴极隔开关系的初始位置处， 准直器的孔与管固定，并且用于使阳极远离初始位置，沿与阳极热膨胀方向相反的方向移位，以提供补偿。 提供了一种柔性板安装装置，用于选择性地将阳极板连接到壳体。

    X-RAY TUBE AND X-RAY GENERATION DEVICE
    14.
    发明申请
    X-RAY TUBE AND X-RAY GENERATION DEVICE 审中-公开

    公开(公告)号：US20200058462A1

    公开(公告)日：2020-02-20

    申请号：US16485840

    申请日：2018-02-26

    Applicant: HAMAMATSU PHOTONICS K.K.

    Inventor： Kazutaka SUZUKI

    IPC: H01J35/28 ,  H01J35/18

    Abstract: An X-ray tube includes: a vacuum housing configured to include an internal space which is vacuum; a target unit configured to be disposed in the internal space, and include a target that generates an X-ray by using an electron beam incident therein, and a target support unit that supports the target, the X-ray generated by the target being transmitted through the target support unit; an X-ray emission window configured to be so provided as to face the target support unit, and seal an opening of the vacuum housing, the X-rays transmitted through the target support unit being transmitted through the X-ray emission window; an elastic member configured to press the target unit in such a direction as to approach the X-ray emission window; and a target shift unit configured to shift the target unit pressed by the elastic member in a direction crossing an incidence direction of the electron beam.

    SYSTEM AND METHOD FOR RECIPROCATING AN ANODE IN AN X-RAY DEVICE
    15.
    发明申请
    SYSTEM AND METHOD FOR RECIPROCATING AN ANODE IN AN X-RAY DEVICE 审中-公开

    公开(公告)号：US20190148103A1

    公开(公告)日：2019-05-16

    申请号：US15814088

    申请日：2017-11-15

    Applicant: GENERAL ELECTRIC COMPANY

    Inventor： Michael William Gorrilla

    IPC: H01J35/28 ,  H01J35/12

    Abstract: An x-ray device is presented. The x-ray device includes a cathode configured to emit an electron beam. Further, the x-ray device includes an anode having an anode surface configured to generate x-rays in response to the emitted electron beam impinging on a focal spot on the anode surface. Also, the x-ray device includes a reciprocating assembly including a drive shaft operatively coupled to the anode and a first bearing unit operatively coupled to the drive shaft, where the first bearing unit is configured to translate the anode via the drive shaft to distribute heat generated in the anode. Moreover, the x-ray device includes a first diaphragm disposed between the anode and the first bearing unit and configured to cease a flow of one or more first lubricants from the first bearing unit towards the anode.

    Multi-target X-ray tube with stationary electron beam position
    18.
    发明授权
    Multi-target X-ray tube with stationary electron beam position 有权
    具有固定电子束位置的多目标X射线管

    公开(公告)号：US09177755B2

    公开(公告)日：2015-11-03

    申请号：US14163486

    申请日：2014-01-24

    Applicant: Moxtek, Inc.

    Inventor： Todd S. Parker ,  Steven D. Liddiard ,  Dave Reynolds

    IPC: H01J35/24 ,  H01J35/10 ,  H01J35/14 ,  H01J35/28

    CPC classification number: H01J35/24 ,  H01J35/08 ,  H01J35/10 ,  H01J35/14 ,  H01J35/16 ,  H01J35/28 ,  H01J2235/081 ,  H01J2235/086 ,  H01J2235/087 ,  H01J2235/186

    Abstract: A transmission x-ray tube comprising an end window hermetically sealed to a flexible coupling. The flexible coupling can allow the window to shift or tilt in one direction or another direction to allow an electron beam to impinge upon one region of the window or another region of the window.A method of utilizing different regions of an x-ray tube target by tilting an x-ray tube window at an acute angle with respect to an electron beam axis to cause an electron beam to impinge on a selected region of the window and tilting the window in a different direction to allow the electron beam to impinge on a different selected region of the window.

    Abstract translation: 一种透射X射线管，包括密封到柔性联轴器的端窗。 柔性联接可以允许窗口在一个方向或另一个方向上移动或倾斜，以允许电子束撞击窗口的一个区域或窗口的另一区域。 一种通过使X射线管窗口相对于电子束轴倾斜为锐角来利用X射线管靶的不同区域的方法，以使电子束撞击在窗口的选定区域上并使窗口倾斜 在不同的方向上，以允许电子束撞击窗口的不同选定区域。

    DISTRIBUTED X-RAY SOURCE AND X-RAY IMAGING SYSTEM COMPRISING THE SAME
    20.
    发明申请
    DISTRIBUTED X-RAY SOURCE AND X-RAY IMAGING SYSTEM COMPRISING THE SAME 失效
    分布式X射线源和包含其的X射线成像系统

    公开(公告)号：US20120300901A1

    公开(公告)日：2012-11-29

    申请号：US13393835

    申请日：2010-09-13

    Applicant: Astrid Lewalter ,  Rainer Pietig ,  Wolfgang Chrost

    Inventor： Astrid Lewalter ,  Rainer Pietig ,  Wolfgang Chrost

    IPC: H01J35/28 ,  A61B6/02 ,  G01N23/04 ,  H01J35/06 ,  H01J35/12

    CPC classification number: H01J35/28 ,  A61B6/025 ,  A61B6/4028 ,  A61B6/4488 ,  A61B6/502 ,  A61B6/508 ,  H01J35/065 ,  H01J35/12 ,  H01J2235/068 ,  H01J2235/1262

    Abstract: A distributed X-ray source (3) and an imaging system (1) comprising such an X-ray source (3) are proposed. The X-ray source (3) comprises an electron beam source arrangement (19) and an anode arrangement (17). The electron beam source arrangement (19) is adapted to emit electron beams (24) towards at least two locally distinct focal spots (27) on the anode arrangement (17). Therein, the X-ray source is adapted for displacing the anode arrangement (17) with respect to the electron beam source arrangement (19). While the provision of a plurality of focal spots allows acquisition of projection images under different projection angles thereby allowing reconstruction of three-dimensional X-ray images e.g. in tomosynthesis application, a displacement motion of the anode arrangement (17) with respect to the electron beam source arrangement (19) may allow for distributed heat flux to the anode arrangement thereby possibly reducing cooling requirements.

    Abstract translation: 提出了包括这样的X射线源（3）的分布式X射线源（3）和成像系统（1）。 X射线源（3）包括电子束源装置（19）和阳极装置（17）。 电子束源装置（19）适于向阳极装置（17）上的至少两个局部不同的焦点（27）发射电子束（24）。 其中，X射线源适于使阳极装置（17）相对于电子束源装置（19）移位。 虽然提供多个焦点允许在不同的投影角度获取投影图像，从而允许重建三维X射线图像，例如， 在层析合成应用中，阳极布置（17）相对于电子束源装置（19）的位移运动可以允许分布的热通量到阳极布置，从而可能降低冷却要求。

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