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Aimant supraconducteur 11 T sans hélium liquide.

11 T liquid helium-free superconducting magnet.

Auteurs : WATANABE K., AWAJI S., SAKURABA J., WATAZAWA K., HASEBE T., JIKIHARA K., YAMADA Y., ISHIHARA M.

Type d'article : Article

Résumé

An 11 T liquid helium-free superconducting magnet designed at 6 K in vacuum using high temperature superconducting current leads was developed. The niobium-titanium/niobium(3)-tin coil was conductively cooled down from room temperature to 4.1 K in 40 hours by two 4-K Gifford-McMahon cryocoolers. In a performance test, the coil temperature rose to 6.8 K for the inner niobium(3)-tin coil and 5.9 K for the outer niobium-titanium coil, while sweeping the field at 5 A/min. A central field of 10.7 T in a 52 mm room temperature bore was generated at an operating current of 149 A. Holding the field at 10.5 T was achieved continuously for 24 hours at a constant coil temperature of 4.8 K.

Détails

  • Titre original : 11 T liquid helium-free superconducting magnet.
  • Identifiant de la fiche : 1998-1475
  • Langues : Anglais
  • Source : Cryogenics - vol. 36 - n. 12
  • Date d'édition : 12/1996

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