Electric lamp and discharge devices – Photosensitive – Photomultiplier
Patent
1990-11-08
1992-06-30
DeMeo, Palmer C.
Electric lamp and discharge devices
Photosensitive
Photomultiplier
313534, H01J 4320
Patent
active
051266296
ABSTRACT:
Photomultiplier tube (10) segmented into a plurality of elementary photomultipliers (11), comprising a photocathode (12), a plurality of elementary electron multipliers (13) of the "apertured sheet" type, and a plurality of focusing electrodes (14) providing the convergence of the photoelectrons emitted by the photocathode (12) towards the elementary multiplier (13). In accordance with the invention, the homologous sheets (15) of the elementary multipliers are realised on one single segmented conductor wafer (16) having a neutral zone (17) separating the active apertured zones (18) constituting the different multipliers (13). The said focusing electrodes (14) can be made from one single conductor sheet (19) in which feedthrough apertures (20) are punched through which the photoelectrons are passed towards the elementary multipliers (13).
REFERENCES:
patent: 2728014 (1955-12-01), Stouenheimer et al.
patent: 2945144 (1960-07-01), Schmidt et al.
patent: 4649314 (1987-03-01), Eschard
patent: 4731559 (1988-03-01), Eschard
patent: 4816718 (1989-03-01), Lavoute
patent: 4980604 (1990-12-01), L'hermite
Botjer William L.
DeMeo Palmer C.
Hamadi Diab
U.S. Philips Corp.
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