发明授权
- 专利标题： Photomultiplier for cascade-multiplying photoelectrons
- 专利标题（中）： 用于级联倍增光电子的光电倍增管
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申请号： US234020申请日： 1994-04-28
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公开(公告)号： US5532551A公开(公告)日： 1996-07-02
- 发明人: Hiroyuki Kyushima , Koji Nagura , Yutaka Hasegawa , Eiichiro Kawano , Tomihiko Kuroyanagi , Akira Atsumi , Masuya Mizuide
- 申请人： Hiroyuki Kyushima , Koji Nagura , Yutaka Hasegawa , Eiichiro Kawano , Tomihiko Kuroyanagi , Akira Atsumi , Masuya Mizuide
- 申请人地址： JPX Hamamatsu
- 专利权人： Hamamatsu Photonics K.K.
- 当前专利权人： Hamamatsu Photonics K.K.
- 当前专利权人地址： JPX Hamamatsu
- 优先权： JPX5-102910 19930428
- 主分类号： H01J40/04
- IPC分类号： H01J40/04 ; H01J9/12 ; H01J9/18 ; H01J43/04 ; H01J43/06 ; H01J43/10 ; H01J43/12 ; H01J43/20 ; H01J43/22
摘要：
A photomultiplier has a focusing electrode plate for supporting focusing electrodes, provided between a photocathode and a dynode unit. Since the focusing electrode plate has holding springs which are integrally formed with the focusing electrode plate, resistance-welding becomes unnecessary to prevent field discharge. A concave portion is formed in a main surface of the focusing electrode plate to arrange an insulating member sandwiched between the focusing electrode plate and the photoelectron incidence side of the dynode unit and partially in contact with the concave portion. With this structure, discharge between the focusing electrode plate and the dynode unit can be prevented.
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