Ion source comprising a concave-shaped repeller
    1.
    发明授权
    Ion source comprising a concave-shaped repeller 失效
    封闭形式的转换器的离子源

    公开(公告)号:US3678267A

    公开(公告)日:1972-07-18

    申请号:US3678267D

    申请日:1969-09-17

    Applicant: PHILIPS CORP

    CPC classification number: H01J49/14

    Abstract: An ion source in which gas is ionized by an electron beam in an ionizing space between a narrow extraction gap in an extraction electrode and an inner wall of a repeller electrode; the wall extending substantially parallel to the extraction gap with the open side of the wall facing the gap. The ions are drawn out of the ionizing space through an extraction electrode along electric fields produced by an acclerating electrode. The repeller electrode has a concave-shaped form for making the effective electric field of the ionizing space substantially independent of the accelerating voltage, thereby resulting in high extraction efficiencies.

    Abstract translation: 离子源,其中通过电子束在提取电极中的窄提取间隙和排斥电极的内壁之间的电离空间中电离气体; 所述壁基本上平行于所述提取间隙延伸,所述壁的敞开侧面向所述间隙。 离子通过电吸引电极产生的电场通过引出电极被从电离空间引出。 排斥电极具有凹形形状,用于使离子化空间的有效电场基本上与加速电压无关,从而导致高提取效率。

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