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1. 发明授权

US4446401A Photomultiplier tube having improved count-rate stability 失效
标题翻译：具有改进的计数率稳定性的光电倍增管
公开(公告)号：US4446401A
公开(公告)日：1984-05-01
申请号：US323287
申请日：1981-11-20
申请人： Richard D. Faulkner , Daniel L. Thoman , Arthur F. McDonie
发明人： Richard D. Faulkner , Daniel L. Thoman , Arthur F. McDonie
IPC分类号： H01J43/06 , H01J40/00
CPC分类号： H01J43/06
摘要： A photomultiplier tube includes an evacuated envelope having therein a photocathode, an anode and an electron multiplier disposed between the cathode and the anode for propagating and concatenating electrons along a path therebetween. The electron multiplier and the anode are supported by a pair of oppositely-disposed support plates. At least one aperture which extends along at least a portion of the electron path is formed in each plate. A pair of focusing shields may be spaced from the exterior surface of each of the support plates. The focusing shields are disposed adjacent to the apertures in the support plates and extend longitudinally along the electron path to provide a transverse focusing field which prevents substantially all of the electrons from impinging on the interior surface of the support plates.
摘要翻译：光电倍增管包括其中具有光电阴极的真空外壳，设置在阴极和阳极之间的阳极和电子倍增器，用于沿着它们之间的路径传播和级联电子。电子倍增器和阳极由一对相对布置的支撑板支撑。沿着电子路径的至少一部分延伸的至少一个孔形成在每个板中。一对聚焦屏蔽件可以与每个支撑板的外表面间隔开。聚焦屏蔽件邻近支撑板中的孔设置并且沿着电子路径纵向延伸以提供横向聚焦场，其防止基本上所有电子撞击在支撑板的内表面上。

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