Superconducting magnet system outfitted with cooling apparatus

Details Superconducting magnet system outfitted with cooling apparatus Superconducting magnet system outfitted with cooling apparatus

1998-04-09

1999-10-19

Capossela, Ronald

Refrigeration

Storage of solidified or liquified gas

Including cryostat

62 6, F25B 1900

Patent

active

059669446

ABSTRACT:
A superconducting magnet system, such as an NMR apparatus, is outfitted with a compact-size refrigerator that prevents mechanical vibrations produced by the refrigerator from being transmitted to the superconducting magnet system. The refrigerator is in the form of a pulse tube refrigerator having a cold head and a pressure oscillation generating source. The cold head of the pulse tube refrigerator is connected directly to a vacuum insulation vessel of the superconducting magnet system. Cold generated from the cold head cools a cooling device, for example, a liquid helium tank for cooling the superconducting coil, or a heat penetration reducing device, for example, a liquid nitrogen tank, for reducing heat penetration from outside.

REFERENCES:
patent: 5381666 (1995-01-01), Saho et al.
patent: 5515685 (1996-05-01), Yanai et al.
patent: 5551243 (1996-09-01), Palkovich et al.
patent: 5647218 (1997-07-01), Kuriyama et al.

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