Status of the RCNP cyclotron facility

The upgrade work of the accelerator facility of Research Center for Nuclear Physics (RCNP) has been carried from 2019 to 2021 to renovate the AVF cyclotron and to improve the performance of the accelerator and the functionality of the RCNP. After the approval of the use of the radiation generator by the Nuclear Regulation Agency Japan in March 2022, we had started the commissioning of AVF cyclotron with the beam of 4He2+ of 28.5 MeV for 211At production. After that the commissioning of the ring cyclotron has been carried from the beginning of October 2022 and we successfully accelerated proton beams of 392 MeV with 1 μA which were transported to the white neutron generating course which supplied for the irradiation of semiconductor devices. We also supplied the 392 MeV proton beam for the commissioning of the high-resolution spectrometer Grand Raiden. In the test of the high-resolution achromatic beam transport mode, the energy spread of the proton beam was obtained for 392 MeV proton beam. In 2023, normal user time has been restarted. Though the financial situation is quite severe mainly due to the soaring electricity bills, we would manage the time for the development of beams and supply them to the users. (author)