Abstract We have developed two double stage helium sorption coolers. The first unit comprises a 3He stage coupled to a 4He stage. This cooler can be operated from any cold heat sink with adequate cooling power (typically ≥0.5 W) at less than 5 K, and provides temperature down to 260 mK. It is a self contained cooler with no moving parts, which can be simply thermally attached to a cold heat sink. Its operation is controlled by two heaters. The second unit is a double stage 3He cooler with the same features. It requires for its operation a cold heat sink at a temperature below 3 K, and provides temperatures down to 204 mK. Both double stage coolers are currently being experimentally characterized, and preliminary results are presented.


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    Titel :

    Double Stage Helium Sorption Coolers


    Beteiligte:
    Duband, L. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.01.2002


    Format / Umfang :

    6 pages




    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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