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Intégration d'aimants supraconducteurs dans les systèmes de réfrigérateurs à dilution sans fluides cryogéniques.

Integration of superconducting magnets with cryogen-free dilution refrigerator systems.

Auteurs : BATEY G., BUEHLER M., CUTHBERT M., et al.

Type d'article : Article

Résumé

There has been much recent research interest into "cryogen-free" dilution refrigerators. Cryogen-free systems have some advantages from a safety and convenience point of view as liquid cryogens are unnecessary. However, this also makes integrating the low-temperature system with a high magnetic field environment much more challenging. Here we shall describe recent successes of integrating superconducting magnets and dilution refrigerators into one system requiring a single pulse tube cooler. The resulting environment provides experimental temperatures between 7 mK and 30 K and magnetic fields up to 12 T. We shall describe the effects of AC loss heating in such systems on the pulse tube refrigerator when the field is ramped and also the effects of eddy current heating on the mixing chamber in sweeping fields. [Reprinted with permission from Elsevier. Copyright, 2009].

Détails

  • Titre original : Integration of superconducting magnets with cryogen-free dilution refrigerator systems.
  • Identifiant de la fiche : 2010-0669
  • Langues : Anglais
  • Source : Cryogenics - vol. 49 - n. 12
  • Date d'édition : 12/2009
  • DOI : http://dx.doi.org/10.1016/j.cryogenics.2009.09.008

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