Neutron Instruments for the New Research Reactor at the “Monju” Site

• Published in: RADIOISOTOPES Vol. 74; no. 2; pp. 239 - 243
• Main Author: Sato, Nobuhiro
• Format: Journal Article
• Language: English; Japanese
• Published: Japan Radioisotope Association 15.07.2025
• Subjects: cold neutron source; neutron beam application; neutron instruments; neutron irradiation; new research reactor; task force
• ISSN: 0033-8303; 1884-4111
• DOI: 10.3769/radioisotopes.740213

The new research reactor at the “Monju” site, which is planned as a 10-MW class medium-power reactor primarily designed for neutron beam utilization, aims to be a valuable research facility that contributes to academic research, industrial applications, and local society development. The neutron instruments are the essential factor that defines the character of the new research reactor as a research facility. Institute for Integrated Radiation and Nuclear Science, Kyoto University (KURNS) is leading the planning of neutron instruments for the new research reactor, working closely with JAEA and Fukui University. The prioritized instruments, selected by their importance in terms of utilization needs, and the instruments located close to the reactor core that affect the reactor design are the primary focus of the neutron instruments study. With the cooperation of experts from domestic universities and research institutions, neutron instruments task forces have been organized to conduct a study on the neutron instruments to be installed at the new research reactor. In addition, prototype instruments development will be promoted to ensure the continuity of academic and technological knowledge and foster human resource, while steadily advancing the neutron instruments study by the task forces.