ELECTRON GUN AND RADIATION GENERATING APPARATUS
    25.
    发明申请
    ELECTRON GUN AND RADIATION GENERATING APPARATUS 审中-公开
    电子枪和辐射发生装置

    公开(公告)号:US20160293375A1

    公开(公告)日:2016-10-06

    申请号:US15037971

    申请日:2014-09-16

    Inventor: Oliver HEID

    CPC classification number: H01J3/027 H01J3/02 H01J3/18 H01J35/06 H01J35/14

    Abstract: The invention relates to an electron gun for generating a flat electron beam, comprising a cathode with an emission surface which is curved about a central axis and which is designed to emit electrons. The electron gun further comprises an accelerating device for accelerating the electrons in a radial direction towards a target region on the central axis. Furthermore, the emission surface has a width in the azimuth direction and a height oriented perpendicularly to the width, said width being at least ten times greater than the height.

    Abstract translation: 本发明涉及一种用于产生平面电子束的电子枪,包括具有围绕中心轴线弯曲且被设计为发射电子的发射表面的阴极。 电子枪还包括加速装置,用于沿着径向加速电子朝向中心轴上的目标区域。 此外,发射表面具有方位方向上的宽度和垂直于宽度的高度,所述宽度比高度高至少十倍。

    Vacuum encapsulated, high temperature diamond amplified cathode capsule and method for making same
    30.
    发明授权
    Vacuum encapsulated, high temperature diamond amplified cathode capsule and method for making same 有权
    真空封装,高温金刚石放大阴极胶囊及其制造方法

    公开(公告)号:US09224570B2

    公开(公告)日:2015-12-29

    申请号:US13896459

    申请日:2013-05-17

    Abstract: A vacuum encapsulated, hermetically sealed cathode capsule for generating an electron beam of secondary electrons, which generally includes a cathode element having a primary emission surface adapted to emit primary electrons, an annular insulating spacer, a diamond window element comprising a diamond material and having a secondary emission surface adapted to emit secondary electrons in response to primary electrons impinging on the diamond window element, a first high-temperature solder weld disposed between the diamond window element and the annular insulating spacer and a second high-temperature solder weld disposed between the annular insulating spacer and the cathode element. The cathode capsule is formed by a high temperature weld process under vacuum such that the first solder weld forms a hermetical seal between the diamond window element and the annular insulating spacer and the second solder weld forms a hermetical seal between the annular spacer and the cathode element whereby a vacuum encapsulated chamber is formed within the capsule.

    Abstract translation: 一种用于产生二次电子的电子束的真空密封的气密密封阴极胶囊,其通常包括具有适于发射一次电子的主要发射表面的阴极元件,环形绝缘间隔物,包含金刚石材料的金刚石窗体元件, 二次发射表面适于响应于撞击在金刚石窗口元件上的一次电子发射二次电子,布置在金刚石窗口元件和环形绝缘间隔物之间​​的第一高温焊料焊接点和设置在金刚石窗口元件之间的第二高温焊料焊点 绝缘垫片和阴极元件。 阴极胶囊通过在真空下的高温焊接工艺形成,使得第一焊接焊缝在金刚石窗口元件和环形绝缘间隔件之间形成密封,并且第二焊接焊缝在环形间隔件和阴极元件之间形成气密密封 由此在胶囊内形成真空密封室。

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