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Title: Refrigerated MR magnet support system

Abstract

This paper describes a superconductive magnet cooled by a two stage cryocooler. It comprises: a vacuum vessel; a magnet cartridge having a least one superconductive coil situated in the vacuum vessel; a first stage heat station for removably thermally engaging the first stage of the crycooler; removably thermally engaging the second stage of the cryocooler, the second stage heat station in thermal and supporting contact with the magnet cartridge; a thermal radiation shield surrounding the magnet cartridge, the shield spaced away from the vacuum vessel and the magnet cartridge the thermal radiation shield defining an aperture; three concentric cylindrical tubes, spring bias means secured between second end of the intermediate tube and the first stage heat station for maintaining a constant pressure between the cryocooler first stage and the first stage heat station when the second stage of the cryocooler is forced in contact with the second stage heat station; and means for thermally connecting the thermal radiation shield to the first stage heat station.

Inventors:
Publication Date:
OSTI Identifier:
5121859
Patent Number(s):
US 4986078; A
Application Number:
PPN: US 7-395637
Assignee:
General Electric Co., Schenectady, NY (USA)
Resource Type:
Patent
Resource Relation:
Patent File Date: 17 Aug 1989
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; SUPERCONDUCTING MAGNETS; COOLING SYSTEMS; CRYOGENICS; SHIELDS; VACUUM SYSTEMS; ELECTRICAL EQUIPMENT; ELECTROMAGNETS; ENERGY SYSTEMS; EQUIPMENT; MAGNETS; SUPERCONDUCTING DEVICES; 426001* - Engineering- Superconducting Devices & Circuits- (1990-)

Citation Formats

Laskaris, E T. Refrigerated MR magnet support system. United States: N. p., 1991. Web.
Laskaris, E T. Refrigerated MR magnet support system. United States.
Laskaris, E T. Tue . "Refrigerated MR magnet support system". United States.
@article{osti_5121859,
title = {Refrigerated MR magnet support system},
author = {Laskaris, E T},
abstractNote = {This paper describes a superconductive magnet cooled by a two stage cryocooler. It comprises: a vacuum vessel; a magnet cartridge having a least one superconductive coil situated in the vacuum vessel; a first stage heat station for removably thermally engaging the first stage of the crycooler; removably thermally engaging the second stage of the cryocooler, the second stage heat station in thermal and supporting contact with the magnet cartridge; a thermal radiation shield surrounding the magnet cartridge, the shield spaced away from the vacuum vessel and the magnet cartridge the thermal radiation shield defining an aperture; three concentric cylindrical tubes, spring bias means secured between second end of the intermediate tube and the first stage heat station for maintaining a constant pressure between the cryocooler first stage and the first stage heat station when the second stage of the cryocooler is forced in contact with the second stage heat station; and means for thermally connecting the thermal radiation shield to the first stage heat station.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {1}
}