Updates on facility and sample environment from JRR-3

Kaneko, Koji   

After nearly 10 years of shutdown, the Japanese research reactor 3, JRR-3, has been restarted on February 2022, and subsequently the user program has been resumed from July. Since then, the reactor was at stable operation, with 7 cycles per year. In line with the restart of the reactor, sample environments were also checked, and reused successfully. In addition, some equipments were renewed to fulfill demands of increased security and safety. This renewal includes the new dry magnet and sets of top-loading cryostats. We will report issues we faced at the restart, and the ongoing project.