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Improvement of the performance of helium liquefaction system on dilution refrigerator using GM precooled JT expansion refrigerator with magnetic regenerator.

[In Japanese. / En japonais.]

Author(s) : MATSUMOTO K., OKUDA Y., ONISHI A., KANAZAWA Y.

Type of article: Article

Summary

A Joule-Thomson (JT) expansion refrigerator with a Gifford-McMahon (GM) precooler which had magnetic regenerator was installed in a dilution refrigerator for use in long-term experiments without the necessity of helium transfer. The dilution refrigerator was operated for two months without liquid helium transfer. The performance and stability of the system was much improved with magnetic regenerator material compared with lead because of the increase in cooling power.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1998-0014
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 31 - n. 4
  • Publication date: 1996
  • Document available for consultation in the library of the IIR headquarters only.

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