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Conception et construction d'un refroidisseur à tube à pulsation miniature non magnétique et non métallique.

Design and construction of a non-magnetic and non-metallic miniature pulse-tube cooler.

Auteurs : DANG H. Z., JU Y. L., ZHOU Y.

Résumé

The pulse-tube cryocoolers (PTCs) are promising candidates for SQUIDs cooling because of the increased reliability and reduced vibrations. But the electromagnetic interference and eddy currents originated from the metallic-made components of PTCs are still enormous obstacles for practical applications. The paper first analyses the main sources of interference signals of a PTC system, and finds solutions to minimize and/or eliminate them. Then a non-metallic and non-magnetic miniature PTC (NNMPTC) for the low-noise cooling of high-Tc SQUIDs was designed and fabricated. The cryogen-free operation of high-Tc SQUIDs by the NNMPTC is currently underway.

Détails

  • Titre original : Design and construction of a non-magnetic and non-metallic miniature pulse-tube cooler.
  • Identifiant de la fiche : 2006-0009
  • Langues : Anglais
  • Source : Proceedings of the nineteenth International Cryogenic Engineering Conference. ICEC 19.
  • Date d'édition : 22/07/2002

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