Variable sensitivity transmission mode negative electron affinit

Details Variable sensitivity transmission mode negative electron affinit Variable sensitivity transmission mode negative electron affinit

1981-05-06

1987-02-17

Sikes, William L.

Electric lamp and discharge devices

Cathode ray tube

Image pickup tube

313384, H01J 3100, H01J 3126

Patent

active

046442219

ABSTRACT:
A method of forming a variable sensitivity transmission mode negative eleon affinity (NEA) photocathode in which the sensitivity of the photocathode to white or monochromatic light can be varied by varying the backsurface recombination velocity of the photoemitting material with an electric field. The basic structure of the photocathode is comprised of a Group III-V element photoemitter on a larger bandgap Group III-V element window substrate.

REFERENCES:
patent: 3278782 (1966-10-01), Kanter
patent: 3868523 (1975-02-01), Klopfer et al.
patent: 3960620 (1976-06-01), Etterberg
patent: 4019082 (1977-04-01), Olsen et al.
patent: 4096511 (1978-06-01), Gurnell et al.
patent: 4286373 (1981-09-01), Gutierrez et al.

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