Phototube having apertured electrode recessed in cup-shaped elec

Details Phototube having apertured electrode recessed in cup-shaped elec Phototube having apertured electrode recessed in cup-shaped elec

1976-01-26

1978-03-14

Segal, Robert

Electric lamp and discharge devices

Geiger-mueller type

313 99, H01J 3900, H01J 3904

Patent

active

040792820

ABSTRACT:
A phototube includes a cup-shaped apertured electrode interposed between a substantially flat cathode and an electron collection electrode. Anapertured electrode is coaxially secured within the recess of the cup-shaped electrode in parallel spaced-apart facing relation to the cathode.

REFERENCES:
patent: 2121636 (1938-06-01), Koller
patent: 2908840 (1959-10-01), Anderson
patent: 3753023 (1973-08-01), Sommer
patent: 3875441 (1975-04-01), Faulkner

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