Title:
SUPERCONDUCTING ELECTROMAGNET DEVICE, COOLING METHOD THEREFOR, AND MAGNETIC RESONANCE IMAGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/080986
Kind Code:
A1
Abstract:
A superconducting electromagnet device is provided with: a refrigerant circulation flowpath (6) through which a refrigerant (R) circulates; a refrigerator (12) for cooling the refrigerant (R) vapour in the refrigerant circulation flowpath (6); a superconducting coil (4) which is cooled by the circulating refrigerant (R); a protective resistor (10) for thermally contacting the superconducting coil (4) and having an internal space (S); a high-boiling-point refrigerant supply part (22) for supplying, to the internal space (S) inside the protective resistor (10), a high-boiling-point refrigerant which has a higher boiling point than the refrigerant (R) and which is frozen by the refrigerant (R); and a vacuum insulating vessel (2) for accommodating at least the refrigerant circulation flowpath (6), the superconducting coil (4) and the protective resistor (10).
Inventors:
AOKI MANABU (JP)
ANDO RYUYA (JP)
MURATA YUKIHIRO (JP)
NAKAGAWA RYOJI (JP)
ANDO RYUYA (JP)
MURATA YUKIHIRO (JP)
NAKAGAWA RYOJI (JP)
Application Number:
PCT/JP2012/080690
Publication Date:
June 06, 2013
Filing Date:
November 28, 2012
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
H01F6/04; A61B5/055; G01R33/3815; H01F6/02
Foreign References:
| JPH11219814A | 1999-08-10 | |||
| JPH11233334A | 1999-08-27 | |||
| JP2005530976A | 2005-10-13 | |||
| JPH08222429A | 1996-08-30 | |||
| JP2000182821A | 2000-06-30 | |||
| JP2005124721A | 2005-05-19 | |||
| JPS5861608A | 1983-04-12 | |||
| JPH09106908A | 1997-04-22 |
Attorney, Agent or Firm:
ISONO Michizo (JP)
Michizo Isono (JP)
Michizo Isono (JP)
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Claims: