Electric lamp and discharge devices – Photosensitive – Photomultiplier
Patent
1984-05-18
1986-06-03
DeMeo, Palmer C.
Electric lamp and discharge devices
Photosensitive
Photomultiplier
313536, 313261, H01J 4004, H01J 4306
Patent
active
045932298
ABSTRACT:
A photomultiplier tube comprises an evacuated envelope having a photoemissive cathode, a shield cup spaced from the cathode and an electron multiplier cage assembly abutting the shield cup. The cage assembly includes a pair of transversely spaced insulating support plates having oppositely disposed surfaces. A plurality of dynodes and an anode are disposed between the support plates. A plurality of oppositely disposed locating slots are formed in the shield cup. At least one tab slot is formed through the oppositely disposed surfaces of each of the support plates. A plurality of connecting tab members are provided for connecting the cage assembly to the shield cup. Each tab member includes a slot engaging portion, a locking portion, a locating portion and an attachment portion. The slot engaging portion is disposed within the tab slot of the support plate. The locking portion extends from one end of the slot engaging portion for securely engaging one surface of the plate. A locating portion extends from the other end of the slot engaging portion along the other oppositely disposed surface of the plate and through one of the locating slots formed in the shield cup. The attachment portion of the tab member is fixedly attached to the shield cup.
REFERENCES:
patent: Re30249 (1980-04-01), Faulkner
patent: 2396170 (1946-03-01), Fulton, Jr.
patent: 2862135 (1958-11-01), Payne
patent: 2942137 (1960-06-01), Taylor
patent: 4370585 (1983-01-01), Butterwick
patent: 4426596 (1984-01-01), Butterwick
patent: 4431943 (1984-02-01), Faulkner et al.
U.S. patent application entitled, "Photomultiplier Tube Having an Electron Multiplier Cage Assembly with Uniform Transverse Spacing", by A. F. McDonie et al., (filed concurrently herewith), Ser. No. 611,753.
U.S. patent application entitled, "Electrode Structure for an Electron Multiplier Cage Assembly", by D. B. Kaiser, filed concurrently herewith-Ser. No. 611,754.
U.S. patent application entitled, "Photomultiplier Tube Having an Improved Centering and Cathode Contacting Structure", by D. B. Kaiser, filed concurrently herewith-Serial No. 611,958.
Kaiser Donald B.
McDonie Arthur F.
Coughlin Jr. Vincent J.
DeMeo Palmer C.
Irlbeck Dennis H.
RCA Corporation
Whitacre Eugene M.
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