Cryostat with radiation shields cooled by refrigerator

Details Cryostat with radiation shields cooled by refrigerator Cryostat with radiation shields cooled by refrigerator

1987-02-09

1988-08-23

Capossela, Ronald C.

Refrigeration

Refrigeration producer

Evaporator, e.g., heat exchanger

62383, F25B 1900

Patent

active

047651539

ABSTRACT:
A cryostat with two radiation shields cooled by a two stage helium refrigerator which can be easily and quickly removed for maintenance. The inner radiation shield is thermally connected with the second stage of the refrigerator by gaseous convection, while the outer radiation shield is connected with the first stage by metal-to-metal surface contact. The refrigerator is removably installed in a gas-tight receptacle, which forms an annular region around the refrigerator.

REFERENCES:
patent: 3609992 (1971-10-01), Cacheux
patent: 3611746 (1971-10-01), Marsing et al.
patent: 4218892 (1980-08-01), Stephens
patent: 4279127 (1981-07-01), Longsworth
patent: 4484458 (1984-11-01), Longsworth
patent: 4535595 (1985-08-01), Keller et al.
patent: 4543794 (1985-10-01), Matsutani et al.

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