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HELIUM LIQUEFACTION BY GIFFORD-MCMAHON CYCLE CRYOGENIC REFRIGERATOR.

[In Japanese. / En japonais.]

Author(s) : NAGAO M.

Type of article: Article

Summary

THE PAPER DESCRIBES THE PRINCIPAL DESIGN FEATURES AND PERFORMANCE TEST RESULTS OF A THREE-STAGE GIFFORD-MCMAHON CYCLE CRYOGENIC REFRIGERATOR BY WHICH THE AUTHORS HAVE ACHIEVED A NO-LOAD TEMPERATURE OF 3.3 K AND SUCCEEDED IN HELIUM LIQUEFA THE REFRIGERATION CAPACITY WAS 20 MILLIWATTS AT 4.2 K AND THE HELIUM LIQUEFACTION RATE WAS 10 CM3/H. THE KEYPOINT OF THE SUCCESS IS THE SELECTION OF GADOLINIUM-RHODIUM AND GADOLINIUM-ERBIUM-RHODIUM COMPOUNDS AS A REGENERATOR MAI THIS IS THE FIRST TIME THAT A REGENERATIVE-CYCLE CRYOGENIC REFRIGERATOR HAS SUCCESSFULLY LIQUEFIED HELIUM WITHOUT AN AUXILIARY REFRIGERATOR FOR PRECOOLING.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1990-0931
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 24 - n. 4
  • Publication date: 1989
  • Document available for consultation in the library of the IIR headquarters only.

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