Vertically compact cryostat

Details Vertically compact cryostat Vertically compact cryostat

1987-10-30

1988-09-13

Capossela, Ronald C.

Refrigeration

Refrigeration producer

Evaporator, e.g., heat exchanger

F25B 1900

Patent

active

047700076

ABSTRACT:
A vertically compact cryostat includes a housing 2 having a cylindrical lower chamber 3a containing a superconducting coil 1 and a contiguous, larger diameter, overhanging upper chamber 3b serving as a liquid helium reservoir. An annular liquid nitrogen tank 15 surrounds the lower chamber and underlies the upper chamber overhang to thermally insulate the helium and minimize the evaporation thereof. The assembly is completed by a metallic thermal shield 17 attached to the tank and enclosing the housing, and a vacuum vessel surrounding the tank and shield.

REFERENCES:
patent: 3009629 (1961-11-01), Garin et al.
patent: 3168819 (1965-02-01), Santeler
patent: 4072025 (1978-02-01), Thibault

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