Moderator Configuration Options for ESS

L. Zanini, K. Batkov, Esben Bryndt Klinkby, Ferenc Mezei, E. Pitcher, Troels Schönfeldt, A. Takibayev

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    The current, still evolving status of the design and the optimization work for the moderator configuration for the European Spallation Source is described. The moderator design has been strongly driven by the low-dimensional moderator concept recently proposed for use in spallation neutron sources or reactors. Quasi-two dimensional, disc- or tube-shaped moderators,can provide strong brightness increase (factor of 3 or more) with respect to volume para-H2moderators, which constitute the reference, state-of-the-art technology for high-intensity coupled moderators. In the design process other, more conventional, principles were also considered,such as the importance of moderator positioning, of the premoderator, and beam extraction considerations. Different design and configuration options are evaluated and compared with the reference volume moderator configuration described in the ESS Technical Design Report.
    Original languageEnglish
    Title of host publicationProceedings of the 21st Meeting of the International Collaboration on Advanced Neutron Sources (ICANS XXI) : Dawn of High Power Neutron Sources and Science Applications
    EditorsT. Oku, M. Nakamura, K. Sakai, M. Teshigawara, H. Tatsumoto, M. Yonemura, J. Suzuki, M. Arai
    PublisherJapan Atomic Energy Agency
    Publication date2016
    Pages126-133
    Article number3.2.11
    DOIs
    Publication statusPublished - 2016
    Event21st Meeting of the International Collaboration on Advanced Neutron Sources - Ibaraki Prefectural Culture Center, Mito, Japan
    Duration: 29 Sep 20143 Oct 2014
    Conference number: 21

    Conference

    Conference21st Meeting of the International Collaboration on Advanced Neutron Sources
    Number21
    LocationIbaraki Prefectural Culture Center
    CountryJapan
    CityMito
    Period29/09/201403/10/2014
    SeriesK E K Proceedings
    Number2015-7
    SeriesJ A E A - Conf
    Number2015-002

    Cite this

    Zanini, L., Batkov, K., Klinkby, E. B., Mezei, F., Pitcher, E., Schönfeldt, T., & Takibayev, A. (2016). Moderator Configuration Options for ESS. In T. Oku, M. Nakamura, K. Sakai, M. Teshigawara, H. Tatsumoto, M. Yonemura, J. Suzuki, & M. Arai (Eds.), Proceedings of the 21st Meeting of the International Collaboration on Advanced Neutron Sources (ICANS XXI): Dawn of High Power Neutron Sources and Science Applications (pp. 126-133). [3.2.11] Japan Atomic Energy Agency. K E K Proceedings, No. 2015-7, J A E A - Conf, No. 2015-002 https://doi.org/10.11484/jaea-conf-2015-002