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Neutron capture reaction data measurement of minor actinides in fast neutron energy region for study on nuclear transmutation system

核変換システム研究のためのMA核種の高速中性子捕獲反応データの測定

片渕 竜也*; 岩本 修 ; 堀 順一*; 岩本 信之 ; 木村 敦  ; 中村 詔司 ; 芝原 雄司*; 寺田 和司*

Katabuchi, Tatsuya*; Iwamoto, Osamu; Hori, Junichi*; Iwamoto, Nobuyuki; Kimura, Atsushi; Nakamura, Shoji; Shibahara, Yuji*; Terada, Kazushi*

A research project entitled "Study on improvement of neutron capture reaction data accuracies of long-lived minor actinides in fast neutron energy region for development of nuclear transmutation systems" started in 2017. The project aims at improving accuracies of neutron capture cross section of long-lived minor actinides ($$^{237}$$Np, $$^{241}$$Am, $$^{243}$$Am) in the fast neutron energy region which are very important for development of nuclear transmutation systems. In order to improve the capture reaction data of MA, measurement using an intense pulsed neutron beam from a spallation neutron source of the Japan Proton Accelerator Research Complex (J-PARC) is planned. The neutron beam filter is designed to solve the so-called double bunch issue of a neutron beam in J-PARC. This allows for measuring neutron capture cross sections using the high-intensity neutron beam of J-PARC. The outline of the project and the current progress will be presented.

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