Refrigeration – Refrigeration producer – Evaporator – e.g. – heat exchanger
Patent
1984-01-03
1985-02-26
Capossela, Ronald C.
Refrigeration
Refrigeration producer
Evaporator, e.g., heat exchanger
62383, 165185, 250352, F25B 1900
Patent
active
045011311
ABSTRACT:
Resolution and sensitivity of photoconducting light sensitive devices vary nversely with temperature. Hence it is desirable to provide cooling means for photoconductive radiation detectors. One type of low temperature photoconductor is fabricated by placing the photomultiplier tube in a double-walled vacuum Dewar flask. In another type, the detector is mounted near a cryogenic projection, or cold finger, emenating from a refrigerator. In this case fabrication is critical, and great care must be exercised when the cryogenic cold finger is inserted in the Dewar well in order to avoid breakage. A different solution herein to the problem provides detector not as subject as prior devices to breakage of the Dewar detector wall.
REFERENCES:
patent: 3807188 (1974-04-01), Lagodmos
patent: 3851173 (1974-11-01), Taylor et al.
patent: 4190106 (1980-02-01), Dunmire et al.
patent: 4194119 (1980-03-01), Mackenzie
patent: 4324104 (1982-04-01), Horn et al.
patent: 4344302 (1982-08-01), Jarrett, Jr. et al.
patent: 4412427 (1983-11-01), Horn et al.
Gaskin Virginia R.
Horvath Eugene P.
Jansson Richard M.
Capossela Ronald C.
Gibson Robert P.
Lane Anthony T.
The United States of America as represented by the Secretary of
Wilson, Jr. Norman L.
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