Electron tube including a photocathode

Details Electron tube including a photocathode Electron tube including a photocathode

1975-03-05

1976-01-06

Edlow, Martin H.

357 22, 357 41, 357 45, H01L 2714

Patent

active

039316335

ABSTRACT:
A semiconductor photocathode is described in which the electron emission is obtained from a P-type semiconductor into which free electrons are injected from the source or drain of an FET whose channel is normally blocked. Incident photons absorbed in the channel region unblock the FET causing electron emission. Preferably, the device comprises an imaging array of FET's and associated electron emitters.

REFERENCES:
patent: 3699404 (1972-10-01), Simon
patent: 3721839 (1973-03-01), Shannon

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