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Influence des conditions imposées par l'astrophysique sur la conception d'un réfrigérateur à dilution.

Influence of the astrophysical requirements on dilution refrigerator design.

Auteurs : SIRBI A., POUILLOUX B., BENOIT A., et al.

Type d'article : Article

Résumé

A 300 to 0.1 K space prototype is developed in cooperation with CRTBT, IAS Air Liquide and RAL, under CNES and ESA contracts, to demonstrate the feasibility of such a cooling system. The heart of the system is a 4 to 0.1 K open cycle dilution refrigerator circulating He3 and He4. All the tests are now completed. The design of this system is chosen like the nominal solution for Planck/HFI (high frequency instrument). Since scientific requirements have changed the design of the prototype has to be adjusted to receive the focal plane of HFI of Planck. The main goal is to optimise He3 consumption without degrading both mechanical and thermal performances. The paper presents the prototype architecture, the dilution refrigerator and the associated tests. The suitability to Planck mission is also assessed.

Détails

  • Titre original : Influence of the astrophysical requirements on dilution refrigerator design.
  • Identifiant de la fiche : 2001-2639
  • Langues : Anglais
  • Source : Cryogenics - vol. 39 - n. 8
  • Date d'édition : 1999

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