Detection and Application of Neutron Polarization of Polarized Noble Gas by Neutron- Nuclear Resonant Reaction

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We proposed to detect and apply a neutron polarizing ability of polarized xenon (Xe) gas caused by neutron-nuclear resonant reactions. For this purpose, we have developed a polarized Xe system and potable polarized ^3He spin flipper based on spin exchange optical pumping and nuclear magnetic resonance technique, designed and constructed the apparatus for measuring the neutron polarization caused by the polarized Xe system, and carried out a feasibility test of our apparatus with a pulse neuron source at J-PARC.