Silicone dielectric gel cryogenic detector interface

Details Silicone dielectric gel cryogenic detector interface Silicone dielectric gel cryogenic detector interface

1986-06-03

1988-02-23

Howell, Janice A.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250338, 62514R, H01L 2342

Patent

active

047272554

ABSTRACT:
The inherent video noise and video-flashing encountered at the liquid nitrogen boiling point within a cryogenically cooled detector is substantially eliminated by filling any space which might entrap air with a flowable self-sealing silicone gel. The gel is sticky and maintains its adherence to both the cold finger and dewar as it is cooled to cryogenic temperatures without losing its internal self-cohesion. In the illustrated embodiment a two-part gel manufactured by Dow Corning under the trademark Sylgard 527 is employed. The gel is characterized by being self-sealing to at least a temperature within the range of -60 degrees C. to -100 degrees C. In addition, the gel is thermally stable at all temperatures from elevated ambient temperatures through cryogenic temperatures.

REFERENCES:
patent: 3980476 (1976-09-01), Wysocki
patent: 4479367 (1984-10-01), Buller

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