Reduction and resource recycling of high-level radioactive wastes through nuclear transmutation, 5-3; Development of a database for PHITS toward transmutation with a d-Li neutron source

Nakayama, Shinsuke  

In the ImPACT project, irradiation of LLFPs with high-energy neutrons from the d-Li reactions is being considered as a candidate for the transmutation system of LLFPs. In order to contribute to sophistication of transmutation simulation with a d-Li neutron source, a database on d-Li reactions for PHITS has been developed. After developing the database based on the calculated values of DEURACS, simulation based on the database was performed with PHITS and its accuracy was evaluated. As a result, the simulation results based on the database reproduced the measured values of neutron yield from the thick lithium target better than those using the nuclear reaction models implemented in PHITS. It is expected that the present database will contribute to the sophistication of transmutation simulation with a d-Li neutron source.