The Cryomodule Test Stand at the European Spallation Source

Wolfgang Hees, John Weisend, Xilong Wang, Torsten Köttig

    Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

    Abstract

    The European Spallation Source (ESS) is an intergovernmental project building a multidisciplinary research laboratory based upon the world's most powerful neutron source to be built in Lund, Sweden. The ESS will use a linear accelerator which will deliver protons with 5 MW of power to the target at 2.5 GeV with a nominal current of 50 mA. The superconducting part of the linac consists of over 150 niobium cavities cooled with superfluid helium at 2 K. A dedicated cryoplant will supply the cryomodules with single phase helium through an external cryogenic transfer line. The elliptical cavity cryomodules will undergo their site acceptance tests at the ESS cryomodule test stand in Lund. This test stand will use a 4.5 K cryoplant and warm sub-atmospheric compression to supply the 2 K helium. We will show the requirements for the test stand, a layout proposal and discuss the factors determining the required cryogenic capacity, test sequence and schedule.
    Original languageEnglish
    Title of host publicationAdvances in Cryogenic Engineering: Transactions of the Cryogenic Engineering Conference - CEC (AIP Conference Proceedings)
    PublisherAmerican Institute of Physics (AIP)
    Pages655-658
    Volume1573
    DOIs
    Publication statusPublished - 2014
    EventJoint Conference of the Transactions of the Cryogenic Engineering Conference (CEC) / Transactions of the International Cryogenic Materials Conference - Anchorage, AK
    Duration: 2013 Jun 172013 Jun 21

    Publication series

    Name
    Volume1573
    ISSN (Print)0094-243X
    ISSN (Electronic)1551-7616

    Conference

    ConferenceJoint Conference of the Transactions of the Cryogenic Engineering Conference (CEC) / Transactions of the International Cryogenic Materials Conference
    Period2013/06/172013/06/21

    Subject classification (UKÄ)

    • Natural Sciences
    • Physical Sciences

    Keywords

    • Helium
    • Refrigeration
    • Cryomodule
    • Test Stand
    • Site Acceptance Test

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