Neutron beam provided by the neutron nucleus reaction instrument at the J-PARC MLF

ORAL

Abstract

We constructed a neutron beam line at the J-PARC materials and life science facility. This is called the neutron nucleus reaction instrument (NNRI) and measurements of the neutron capture cross sections for minor actinides and long-lived fission products have just begun. Prior to them we measured properties, which are spatial and energy distributions, and pulse shape, of the neutron beam provided by the NNRI. In this talk, we introduce the concept and structure of the NNRI at first. Then we report the properties of the neutron beam, which are experimentally obtained, and discuss their validity comparing to the prediction by simulation.

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Authors

  • Koichi Kino

    Hokkaido U., Hokkaido University

  • Michihiro Furusaka

    Hokkaido U., Hokkaido University

  • Fujio Hiraga

    Hokkaido U., Hokkaido University

  • Takashi Kamiyama

    Hokkaido U., Hokkaido University

  • Yoshiaki Kiyanagi

    Hokkaido U., Hokkaido University

  • Kazuyoshi Furutaka

    JAEA, Japan Atomic Energy Agency

  • Shinji Goko

    JAEA, Japan Atomic Energy Agency

  • Hideo Harada

    Japan Atomic Energy Agency, JAEA

  • Atsushi Kimura

    JAEA, Japan Atomic Energy Agency

  • Tadahiro Kin

    JAEA, Japan Atomic Energy Agency

  • Fumito Kitatani

    JAEA, Japan Atomic Energy Agency

  • Mitsuo Koizumi

    JAEA, Japan Atomic Energy Agency

  • Shoji Nakamura

    JAEA, Japan Atomic Energy Agency

  • Masayuki Ohta

    JAEA, Japan Atomic Energy Agency

  • Masumi Oshima

    JAEA, Japan Atomic Energy Agency

  • Yosuke Toh

    JAEA, Japan Atomic Energy Agency

  • Masayuki Igashira

    Tokyo Institute of Technology

  • Tatsuya Katabuchi

    Tokyo Institute of Technology

  • Motoharu Mizumoto

    Tokyo Institute of Technology