发明名称 |
Broad area cathode contact for a photomultiplier tube |
摘要 |
A photomultiplier tube comprises an evacuated envelope having a generally cylindrical sidewall with a faceplate closing one end of the envelope. A conductive coating is disposed on a portion of the sidewall adjacent to the faceplate. A photocathode is formed on the faceplate and on a portion of the conductive coating. An electron multiplier assembly including a plurality of electrodes is spaced from the photocathode. A plurality of leads extend from the electrodes to a plurality of terminals in a base attached to the tube. A resilient electrical contact member is connected to a terminal in the base for applying a potential to the photocathode. The electrical contact member has a pair of support tabs at the opposite ends of the member. The tabs are affixed to the multiplier assembly so that the contact member assumes a substantially arcuate shape which contacts and conforms to a large area of the conductive coating on the sidewall of the envelope.
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申请公布号 |
US4447758(A) |
申请公布日期 |
1984.05.08 |
申请号 |
US19810323236 |
申请日期 |
1981.11.20 |
申请人 |
RCA CORPORATION |
发明人 |
FAULKNER, RICHARD D.;HENRY, DALE V.;MUTH, DAVID L. |
分类号 |
H01J43/04;(IPC1-7):H01J40/00 |
主分类号 |
H01J43/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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