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Cryocooler cooled superconducting magnet: application of bismuth-based oxide superconducting current leads for the magnet.

[In Japanese. / En japonais.]

Author(s) : YAMADA Y., SAKURABA J., HASEBE T., HATA F., CHONG C. K., ISHIHARA M., WATANABE K.

Type of article: Article

Summary

The bulk has a composition of (bismuth + lead)-strontium-calcium-copper (2223) and is utilized in the form of thin-walled sintered cylindrical tube. At a current of 400 A, this magnet can generate a steady magnetic field of 4 T in a room temperature 38 mm bore. Heat leakage through bismuth (2223) bulk leads when passing a current of 400 A is slight at about 0.2 W. Thereby the resulting total heat load on the coil is less than 0.4 W, within cooling capacity of the Gifford-McMahon cryocooler.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1994-2777
  • Languages: Japanese
  • Source: Cryogenics/ Cryog. Eng. - vol. 28 - n. 9
  • Publication date: 1993
  • Document available for consultation in the library of the IIR headquarters only.

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