Silicone dielectric gel cryogenic detector interface

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

H - Electricity

01

L

62/3, 340/155.2

H01L 23/42 (2006.01) F17C 13/00 (2006.01) F25D 19/00 (2006.01) G01J 5/06 (2006.01) H01L 31/024 (2006.01)

Patent

CA 1270121

IMPROVEMENT IN A CRYOGENIC DETECTOR TO AVOID VIDEO-FLASHING AND THERMAL FLUCTUATIONS Abstract of the Disclosure 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.

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