Pool cooling infrared telescope

Details Pool cooling infrared telescope Pool cooling infrared telescope

1975-05-20

1976-07-20

Borchelt, Archie R.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250338, 62467R, G01J 302, F17C 700

Patent

active

039708500

ABSTRACT:
An infrared telescope that has a detector therein that must be cooled to r 20.degree.K in order to function properly is cooled by freezing a pool of liquid cryogen through rapid venting of a chamber containing the cryogen to a low pressure to cause the cryogen to freeze by the pressure of the liquid cryogen being dropped below the fluid triple point pressure. In this way, the frozen pool of liquid cryogen which is in contact with the detector maintains the detector in a cooled and operating range.

REFERENCES:
patent: 3018643 (1962-01-01), Evers
patent: 3180989 (1965-04-01), Hand, Jr. et al.
patent: 3836779 (1974-09-01), Bruno et al.
patent: 3899674 (1975-08-01), Decramer et al.

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