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Ultimes performances de la bobine LCT d'EURATOM à la température de l'hélium superfluide.

Operation limits of the EURATOM LCT coil at helium II temperature.

Auteurs : HELLER R., DARWESCHSAD M., FINK S., FRIESINGER G., HERZ W., MAURER W., NÖTHER G., SCHLEINKOFER G., SÜSSER M., ULBRICHT A., WÜCHNER F., ZAHN G.

Résumé

Within the framework of the IEA "Large Coil Task" (LCT), on behalf of the European Union, the Forschungszentrum Karlsruche (FZK) constructed a D-shaped toroidal field coil using a forced flow cooled nibium-titanium conductor. The TOSKA facility was modified for operation of forced flow helium II. After a cool down time of about 290 h, the coil was operated at 3.6 K first to compare the results with those obtained in ISMTF at ORNL. After cooldown to 1.8 K, the coil was ramped up with its current sharing region clearly visible on the resitive voltage. The quench started in the high field pancake as expected, the inlet temperature was 1.89 K, the current 19.45 kiloA, corresponding to a maximum magnetic field of 10.77 T. Comparison with single strand data extrapolated from 4.2 K measurements showed no degradation.

Détails

  • Titre original : Operation limits of the EURATOM LCT coil at helium II temperature.
  • Identifiant de la fiche : 1999-2692
  • Langues : Anglais
  • Date d'édition : 05/1998
  • Source : Source : Proc. Workshop CHATS 97, San Francisco, CA/Cryogenics
    vol. 38; n. 5; 519-524; 7 fig.; 4 tabl.; 9 ref.

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