Photodetector heat stabilizer

Details Photodetector heat stabilizer Photodetector heat stabilizer

1979-02-01

1980-11-18

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Temperature control of photocell

H01J 724

Patent

active

042347904

ABSTRACT:
Temperature sensitive photodetectors are temperature stabilized by coupling the photocathode of a photodetector in heat exchange relationship to a heated casting which acts as a heat source for the photocathode. The photocathode is coupled to the casting by a metallic Z-shaped bracket positioned on an insulating block with one base of the Z being coupled to the photocathode and the other base being coupled to a metal box through a Mylar insulating spacer, the box being directly mounted on the casting. A printed circuit board associated with the photodetector is also mounted on the insulating block. The direct heat path from the heated casting through the Z-shaped bracket to the photocathode reduces the warm up time of the photodetector thereby more rapidly temperature stabilizing the photodetector.

REFERENCES:
patent: 4090071 (1978-05-01), McCarter

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