Vacuum tube for generating a wide beam of fast electrons
    92.
    发明授权
    Vacuum tube for generating a wide beam of fast electrons 失效
    用于生成宽电子束的真空管

    公开(公告)号:US3780334A

    公开(公告)日:1973-12-18

    申请号:US3780334D

    申请日:1972-05-31

    Applicant: THOMSON CSF

    Inventor: LEBOUTET H

    CPC classification number: H01J33/00 H01J3/029

    Abstract: A vacuum tube for producing a wide high-uniformity beam of fast accelerated electrons. The tube comprises an evacuated enclosure provided with an electron transparent window and containing an elongated cathode, accelerator electrodes and a control electrode formed by sleeves electrically insulated from one another and brought to separately adjustable potentials.

    Abstract translation: 一种用于产生快速加速电子的宽均匀度束的真空管。 该管包括设置有电子透明窗口并且包含细长阴极,加速器电极和由彼此电绝缘的套筒形成的控制电极的抽空外壳,并分别调节电位。

    Method of controlling the intensity of an electron beam
    93.
    发明授权
    Method of controlling the intensity of an electron beam 失效
    控制电子束强度的方法

    公开(公告)号:US3621327A

    公开(公告)日:1971-11-16

    申请号:US3621327D

    申请日:1969-12-29

    Applicant: FORD MOTOR CO

    Inventor: HASHMI ZIA

    CPC classification number: H01J33/00 H01J29/52

    Abstract: A method for controlling the cross-sectional area and intensity of an electron beam produced in an electron accelerator. A first constant electric field is applied to the beam causing dispersal of the beam in a first plane and concentration of the beam in a second plane disposed perpendicular to the first plane. Subsequently, a second constant electric field is applied to the beam causing beam concentration in the first plane and beam dispersal in the second plane. The fields are applied to the beam between the origin of the beam and the accelerator window and provide that the cross-sectional area of the beam greatly is enlarged at the point of intersection of the beam and the window relative to its original dimensions.

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