The 1st RECAS International Symposium was Held
— Towards Solving Problems in Research Reactors and Developing Human Resources for Nuclear Sciences —
The Research and Education Center for Atomic Sciences (RECAS) hosted the "Symposium on Solving Problems in Research Reactors" on December 5, 2025 at the Mito Ekinan Satellite of Ibaraki University, with a hybrid style allowing online participation. On the day, researchers from abroad, including South Korea, Kazakhstan, Australia, and Indonesia, presented their scientific outcomes and activities alongside domestic researchers from the Japan Atomic Energy Agency, the Japan Atomic Power Company, Tokyo City University, and Ibaraki University. The symposium featured presentations on themes such as the succession of nuclear technology and human development, neutron beam application research, nuclear fusion materials irradiation research, and medical RI production research. Participants actively exchanged views on future development and cooperation on these topics.
RECAS director Prof. Iwasa giving a greeting at the opening
During the symposium, participants actively exchanged their experiences and opinions.
Prof. Ishitsuka expressing his expectation on the future of the symposium at the closing remark
Visit to the Naka Institute for Fusion Science and Technology held prior to the symposium
The presentation materials are available below by clicking each title:
0. Opening address (Kazuaki Iwasa)
Session 1: Learning from South Korea: Technology Succession & Human Resource Development
1.1 Construction Experience of the Jordan Research and Training Reactor (Byung Jin Jun)
1.2 KAERI’s Experiences with the KJRR and other Research Reactor Projects (Cheol Park)
1.3 Development of U-Mo Fuel for Research Reactors and Its Impact (Jong Man Park)
1.4 New Research Reactor Program at the “Monju” Site (Toshinobu Sasa)
1.5 Techical Knowledege Transfer for the Restart of the Tokai No.2 Nuclear Power Plant (Katsumasa Miyoshi)
Session 2: Neutron Science Research
2.1 Current Status of Neutron Science Research at HANARO and Possibilities for Joint Beam Utilization (Young Soo Han)
2.2 Neutron Science Research at Ibaraki University: Collaborations & Education (Kazuaki Iwasa)
Session 3: Irradiation Tests for Fusion Materials
3.1 New Concept of Neutron Multiplayer and Necessary Irradiation Tests (Etsuo Ishitsuka)
3.2 Applied Irradiation Research for Breeding Blanket and Plasma-Facing Materials in Fusion Systems (Inesh Kenzhina)
Session 4: Medical RI Production
4.1 Domestic Production of Ac-225 using the Experimental Fast Reactor JOYO (Yuto Sasaki)
4.2 Status of Medical Radioisotope Production and Future Plans for Ac-225 (Yelena Chakrova)
4.3 Status of Medical RI Production and Plan of Ac-225 Production in Indonesia (Herlan Setiawan)
4.4 Status of Medical RI Production and Future Production Plans in Australia (Leena Burgess)
4.5 Robust and Scalable Production of Key Medical Radioisotopes (Mo-99, Lu-177, Ac-225) via Commercial Light Water Reactors (Naoyuki Takaki)
5. Closing remarks (Etsuo Ishitsuka)
