Neutron science at JRR-3; Over view, recent outcomes and future prospects

Nakajima, Kenji   

JRR-3 is the multipurpose research reactor. After the major upgrading which was finished in 1990, the reactor is running at thermal power of 20 MW. At 7 horizontal beam tubes in the reactor hall and at 2 thermal guide tubes and 3 cold guide tubes in the guide hall, 28 neutron instruments are installed, which are operated by Japan Atomic Energy Agency, Universities including University of Tokyo, Tohoku University, Ibaraki University, Kyoto University and QST. JRR-3 was shut down for after Great East Japan earthquake in 2011 due to the reinforcement work to fit the new regulation, and user program was resumed in 2021. In spite of 10 years interruption of the user operation, now our neutron science at JRR-3 is producing fruitful results in the wide range of field from basic science to industrial applications. In this talk, over view, current status and future prospects of neutron science done at JRR-3 will be given.