Measurement of neutron-capture cross section of Sn with the array of Ge spectrometer at the J-PARC/MLF/ANNRI

J-PARC/MLF/ANNRIにおけるGeスペクトロメータを用いたSnの中性子捕獲反応断面積測定

木村 敦   ; 原田 秀郎   ; 中村 詔司  ; 藤 暢輔   ; 井頭 政之*; 片渕 竜也*; 水本 元治*; 堀 順一*; 木野 幸一*

Kimura, Atsushi; Harada, Hideo; Nakamura, Shoji; Toh, Yosuke; Igashira, Masayuki*; Katabuchi, Tatsuya*; Mizumoto, Motoharu*; Hori, Junichi*; Kino, Koichi*

A Sn sample for a nuclear data experiment contains a large amount of tin stable isotopes, Sn, because they also have fission yields and the sample is normally prepared only through a chemical process from spent fuel. Therefore, to obtain accurate cross-section data for Sn, a series of neutron-capture cross-section measurements for all the tin stable isotopes have been started with Accurate Neutron-Nucleus Reaction measurement Instrument (ANNRI) of Materials and Life science experimental Facility (MLF) in Japan Proton Accelerator Research Complex (J-PARC). The preliminary results of the neutron-capture cross sections for Sn and Sn have been reported in ND2013. In this presentation, preliminary result of the neutron-capture cross-section for Sn is reported in the neutron energy range from 10 meV to 2 keV.