Requirements for the cryogenic refrigerator and the He distribution system for the MYRRHA 100 MeV accelerator

Dirk Vandeplassche, Carmen Angulo Pérez, Tomas Junquera

    Research outputpeer-review


    MYRRHA is an ADS demonstrator for the long-lived radioactive waste transmutation. It is composed of a High Energy CW Linac Accelerator (600 MeV - 4mA) coupled to a Subcritical Reactor of 100 MW thermal power. The main challenge of the Linac is a very high reliability performance to limit stress and long restart procedures of the reactor. Within the MYRRHA project phased approach for the construction, a 100 MeV-4 mA Linac (Injector up to 17 MeV and SC Linac between 17 MeV and 100 MeV) will be constructed in the Phase 1, covering 2016-2024. The SC Linac is composed of 60 Single-Spoke SC cavities, housed in 30 cryomodules. The cavities operates at 352 MHz, in a superfluid Helium bath at 2K. This article, presents the preliminary requirements for the Linac Cryogenic System. The analysis of high thermal loads induced by the CW mode operation of cavities, leads to a Cryogenic Refrigerator with a power of 2700 W (equiv. power capacity at 4.5 K). Each cryomodule is connected through a dedicated Valve Box to the Helium transfer line running along the Linac tunnel. A description of the cryogenic system features and initial models of the tunnel and associated buildings are presented.
    Original languageEnglish
    Title of host publicationProceedings of the 9th international conference on particle accelerator conference - IPAC2018
    PublisherJACoW Publishing
    Number of pages3
    ISBN (Print)9783954501847
    StatePublished - 3 May 2018
    Event2018 - IPAC'18: 9th International Particle Accelerator Conference - JW Marriott Parq Vancouver, Vancouver, BC
    Duration: 30 Apr 20184 May 2018


    Conference2018 - IPAC'18
    CityVancouver, BC
    Internet address

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