Electric lamp and discharge devices – Electrode and shield structures – Cathodes containing and/or coated with electron emissive...
Patent
1981-07-20
1983-12-06
Chatmon, Saxfield
Electric lamp and discharge devices
Electrode and shield structures
Cathodes containing and/or coated with electron emissive...
313106, 313532, H01J 114, H01J 1906
Patent
active
044196032
ABSTRACT:
Photocathode of SbK.sub.2 Cs destined for any electro-optical tube.
Photocathode (11) comprising a layer (12) of potassium and caesium antimonide SbK.sub.2 Cs deposited on the substrate (13), also comprising a sub-layer (14) of manganese oxide, intermediate between the said substrate (13) and the said layer (12) of SbK.sub.2 Cs, the said sub-layer (14) of MnO improving in the red the spectral sensitivity of the layer (12) of SbK.sub.2 Cs.
Application notably for photomultiplier tubes used in nuclear physics.
REFERENCES:
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patent: 2177259 (1939-10-01), Keck
patent: 2244720 (1941-06-01), Massa et al.
patent: 2431401 (1947-11-01), Janes
patent: 2676282 (1954-04-01), Polkosky
patent: 2728014 (1955-12-01), Stoudenheimer
patent: 3697794 (1972-10-01), Stoudenheimer
patent: 3697795 (1972-10-01), Braun et al.
Farrayre Antoine
Marandas Georges J. P.
Nussli Jacques
Chatmon Saxfield
Spain Norman N.
U.S. Philips Corporation
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