FSPI022 　施設現状報告ポスター2　 7月31日・8月1日 国際科学イノベーション棟5階 ホワイエ 13:30-15:30

東大ライナック・レーザー施設報告 2019

STATUS REPORT OF LINAC/LASER FACILITY OF UNIVERSITY OF TOKYO IN 2019

○橋本 英子，山下 真一，上田 徹，安見 厚志，土橋 克広（東京大学原子力専攻），三津谷 有貴（東京大学総合研究機構），草野 譲一，田辺 英二（アキュセラ），上坂 充（東京大学原子力専攻）

○Eiko Hashimoto, Shinichi Yamashita, Toru Ueda, Atsushi Yasumi, Katsuhiro Dobashi (Department of Nuclear Engineering and Management, University of Tokyo), Yuki Mitsuya (Institute of Engineering Innovation, University of Tokyo), Joichi Kusano, Eiji Tanabe (Accuthera Inc.), Mitsuru Uesaka (Department of Nuclear Engineering and Management, University of Tokyo)

We operate various accelerators; S-band linacs, heavy irradiation system, and X-band linacs at the Nuclear Professional School, University of Tokyo. S-band linacs was celebrating its 40th anniversary in 2018, since the operation work was started. We avail ourself of the research in radiation chemistry used by very-short pulse beam, quantum beam engineering. In heavy irradiation system, ion beam are generated by 1MV Tandetron and 3.75MV Van de Graff accelerator. We investigate the radiation-induced phenomena which is observed by microstructure, chemical analysis and mechanical properties. We have developed 950 keV/3.95 MeV X-band electron linac-based X-ray sources for on-site bridge inspection and visualized the inner structure of a lower floor slab. These systems can visualize in seconds the inner states of bridges, including cracks of concrete, location and state of wires and other imperfections.