Radiation hard visible light readout circuit

Details Radiation hard visible light readout circuit Radiation hard visible light readout circuit

1985-12-27

1987-04-21

Howell, Janice A.

Radiant energy

Invisible radiant energy responsive electric signalling

250214C, 307311, G01J 100, H01J 4014

Patent

active

046599304

ABSTRACT:
A pair of photodetectors are electrically connected in series. A common interconnection point of the two photodetectors is electrically connected to the inverting input of an opertional amplifier to provide a signal indicative of visible light falling on one of the photodetectors. The other of the photodetectors is masked to block visible but allow a response to non-visible radiation in the form of gamma, x-rays and the like.

REFERENCES:
patent: 3895230 (1975-07-01), Itagaki
patent: 4035634 (1977-07-01), Numata

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