METHOD AND APPARATUS FOR MAGNETIC FOCUSING OF OFF-AXIS ELECTRON BEAM
    25.
    发明公开
    METHOD AND APPARATUS FOR MAGNETIC FOCUSING OF OFF-AXIS ELECTRON BEAM 有权
    DEVICE AND METHOD FOR磁聚焦离轴电子

    公开(公告)号:EP1522084A2

    公开(公告)日:2005-04-13

    申请号:EP03763466.4

    申请日:2003-07-09

    IPC分类号: H01J23/087

    摘要: Axially symmetric magnetic fields are provided about the longitudinal axis of each beam of a multi-beam electron beam device (MBEBD). A flux equalizer assembly is disposed between the cathodes and the anodes and near the cathodes of a (MBEBD). The assembly includes a ferromagnetic flux plate completely contained within the magnetic focusing circuit of the (MBEBD). The flux plate includes apertures for each beam of the (MBEBD). A flux equalization gap or gaps are disposed in the flux plate to provide a perturbation in the magnetic field in the flux plate which counters the asymmetry induced by the off-axis position of the beam. The gaps (MBEBD) have the effect of producing a locally continuously varying reluctance that locally counters the magnetic field asymmetry. The flux equalizer assembly prevents or substantially reduces beam twist and maintains all of the electron beams of the (MBEBD) as linear beams.

    Cavity arrangements
    28.
    发明公开
    Cavity arrangements 失效
    谐振腔装置

    公开(公告)号:EP0701266A3

    公开(公告)日:1998-04-01

    申请号:EP95305801.3

    申请日:1995-08-21

    申请人: EEV LIMITED

    发明人: Bardell, Steven

    IPC分类号: H01J23/20

    摘要: In an output resonant cavity 7 used with a linear electron beam tube such as an IOT, magnetic material 17 and 23 is mounted on walls 12 and 13 of the cavity and defines annular channels within which coils 21, 22 and 27 are located to provide focusing of an electron beam travelling along the axis X-X of a tube located in the apertures 15 and 16. An inner rim 28 locates the electron beam tube in relation to the cavity.

    Cavity arrangements
    29.
    发明公开
    Cavity arrangements 失效
    Hohlraumresonator-Vorrichtungen

    公开(公告)号:EP0701266A2

    公开(公告)日:1996-03-13

    申请号:EP95305801.3

    申请日:1995-08-21

    申请人: EEV LIMITED

    发明人: Bardell, Steven

    IPC分类号: H01J23/20

    摘要: In an output resonant cavity 7 used with a linear electron beam tube such as an IOT, magnetic material 17 and 23 is mounted on walls 12 and 13 of the cavity and defines annular channels within which coils 21, 22 and 27 are located to provide focusing of an electron beam travelling along the axis X-X of a tube located in the apertures 15 and 16. An inner rim 28 locates the electron beam tube in relation to the cavity.

    摘要翻译: 在与诸如IOT的线性电子束管一起使用的输出谐振腔7中,磁性材料17和23安装在空腔的壁12和13上,并且限定环形通道,线圈21,22和27位于该环形通道内以提供聚焦 电子束沿着位于孔15和16中的管的轴线XX行进。内缘28将电子束管相对于空腔定位。