On-Chip Detector Cooling for Space Applications

J.H. Derking, H.J.M. ter Brake, A. Sirbi, M. Linder, H. Rogalla

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review


    Vibration-free miniature Joule-Thomson (JT) coolers are of interest for cooling small optical detectors for future space missions. The European Space Agency is interested in on-chip detector cooling for the temperature range 70¶K¶-¶250¶K. This is the topic of a new project at the University of Twente. In this project, the focus is on the integration of Micro-Electro-Mechanical Systems (MEMS) based JT coolers with small detectors for space applications. Furthermore, distributed micro cooling will be investigated, which means that multiple cold tips will be driven by a single compressor. The progress of this project is discussed in this paper. The application of JT coolers in the temperature range 70¶K¶-¶250¶K is investigated. The working fluid in a JT cold stage is optimized on basis of the thermodynamical properties of the fluid. The results of this optimization are discussed. Furthermore, a static model of the counter flow heat exchanger is built, in order to simulate the performance of a micro JT cold stage. The results of the simulations are compared with experimental data.
    Original languageEnglish
    Title of host publicationCryocoolers 15
    EditorsSaul D. Miller, Ronald G. Ross, Jr.
    Place of PublicationBoulder, CO
    PublisherICC Press
    ISBN (Print)978-1-934021-01-9
    Publication statusPublished - 2009
    Event15th International Cryocooler Conference, Cryocoolers-15 2008 - Long Beach, United States
    Duration: 9 Jun 200812 Jun 2008
    Conference number: 15

    Publication series

    NameInternational Cryocooler Conference
    PublisherICC Press
    ISSN (Print)1549-1757


    Conference15th International Cryocooler Conference, Cryocoolers-15 2008
    Abbreviated titleCryocoolers
    CountryUnited States
    CityLong Beach

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