J-PARC中性子源用極低温水素システム

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タイトル別名
  • Cryogenic Hydrogen System for a Spallation Neutron Source in J-PARC
  • J PARC チュウセイシゲンヨウ キョクテイオン スイソ システム

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Through the collaboration of the Japan Atomic Energy Agency and High Energy Accelerator Research Organization, the Japan Proton Accelerator Research Complex (J-PARC) has been constructed. The prime purpose is to use the various secondary particle beams such as neutrons, mesons and neutrinos produced in proton-nucleus reactions. One of the facilities that has already been completed is a materials and life-science experimental facility (MLF) where materials and biological structures are analyzed by neutron beam-scattering experiments. In the MLF, a spallation neutron source that provides a high-intensity pulse neutron with low-order meV energy for scattering experiments has been completed, and has successfully produced the desired neutrons. Neutrons produced by spallation reaction have high-order MeV energy, and the high-energy neutron is then transformed to meV-order energy by passing it through a supercritical hydrogen moderator. Therefore, a cryogenic hydrogen system is equipped in the spallation neutron source system. This paper describes the first operation results of the cryogenic hydrogen system.

収録刊行物

  • 低温工学

    低温工学 43 (10), 409-416, 2008

    公益社団法人 低温工学・超電導学会 (旧 社団法人 低温工学協会)

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