[1F01-06] Neutron Source and Utilization

[1F03] Concept of neutron source for LLFP transmutation using multiple incident beams supplied from multiple cyclotrons

*Keijiro Takeda¹, Mitsuhiro Fukuda¹, Hiroshi Toki¹, Ryoichi Seki¹, Hiroki Kanda¹, Tetsuhiko Yorita¹, Masao Nakao¹, Tsutomu Shinoduka² (1. RCNP(Osaka univ), 2. CYLIC(Tohoku univ))

Keywords:Neutron source, Transmutation, Cyclotron, LLFP

We are studying the concept of an accelerator system combining a lot of cyclotrons in order to stably and safely and efficiently perform LLFP transmutation. The beam intensity required for the accelerator is 1 A, we can compensate by multiplying the beams from multiple cyclotrons into the neutron source and disperse the beam power. In this presentation, we calculate the reduction amount and neutron flux of the LLFP nuclide when the deuteron beam is incident on the Cs target multiple times, and estimate the change with time of the isotope composition.