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DEVELOPMENT OF RECIPROCATING MAGNETIC REFRIGERATOR.

[In Japanese. / En japonais.]

Author(s) : NAKAGOME H.

Type of article: Article

Summary

THE REQUIREMENT FOR A HELIUM REFRIGERATOR WITH HIGH EFFICIENCY AND COMPACTNESS HAS BEEN GROWING FOR COOLING SUPERCONDUCTING DEVICES. THE AUTHORS HAVE DEVELOPED A RECIPROCATING MAGNETIC REFRIGERATOR FOR LIQUEFYING HELIUM. THE WORKING MATERIAL: GADOLINIUM-GALLIUM-GARNET (GGG) SINGLE CRYSTAL, IS PLACED AT THE END OF EACH PISTON. WHEN THE WORKING MATERIAL IS IN A HIGH-INTENSITY MAGNETIC FIELD, THE TEMPERATURE OF THE GGG RISES TO 15 K. THE INNER SURFACE OF THE CYLINDER IS COOLED BY THE AUXILIARY REFRIGERATOR. WHEN THE MAGNETIC FIELD IS ELIMINATED BY MOVING THE PISTON, TEMPERATURE OF THE GGG GOES BELOW 4.2 K. THE REFRIGERATION OF LIQUID HELIUM OCCURS.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1986-1747
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 20 - n. 5
  • Publication date: 1985
  • Document available for consultation in the library of the IIR headquarters only.

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