Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1988-10-20
1990-08-21
Fields, Carolyn E.
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
62 511, G01J 506
Patent
active
049504215
ABSTRACT:
A non-evacuated dewar 10 advantageously employs a molecular sieve 30 that serves to adsorb gasses in the dewar when cooled during operation of the detector 24 thereby preventing liquid formation onto the detector. The effects of outgassing and permeation during storage are substantially eliminated because the dewar package is in partial pressure equilibrium with its environment since the interior of the dewar is backfilled with the same inert gas as is in the surrounding outside environment. A second molecular sieve 40 may be used to adsorb moisture which may permeate into the housing.
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Article entitled "Davison Molecular Sieves", pp. 3-5, (undated).
Article entitled "Physical Properties of Linde 3X Molecular Sieve", 3 pgs., undated.
Bewilogua et al, "Adsorption of hydrogen, neon, and helium on 5A molecular sieve at 20.4 K and 4.2 K in the low pressure range", Journal of Cryogenics, vol. 16, No. 4, pp. 238-240, (1976).
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Davis, Jr. John A.
Peck Leonard E.
Rich Benjamin K.
Sargent Wesson P.
Denson-Low W. K.
Fields Carolyn E.
Santa Barbara Research Center
Schubert W. C.
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