[1H01-05] Fusion Neutron Source and Neutron Irradiation

[1H01] Progress on A-FNS design and R&D

(1) Present status of A-FNS project and progress on design activity

*Satoshi Sato¹, Kentaro Ochiai¹, Makoto Oyaizu¹, Masayuki Ohta¹, Saerom Kwon¹, Shunsuke Kenjo¹, Takashi Ebisawa¹ (1. QST)

Keywords:A-FNS, IFMIF/EVEDA, lithium target, lithium loop

The Fusion Neutron Source A-FNS, which generates high energy neutron by reaction between deuteron and lithium, is planned to be constructed in Rokkasho to acquire initial irradiation data on fusion DEMO reactor materials. Design activities are conducted on the A-FNS accelerator and test facility. The IFMIF/EVEDA project has been implemented in collaboration with Europe since 2021 to solve the common issues on lithium target R&D and neutron source design. In particular, we have conducted tritium migration estimation, dose rate assessment due to activated depositions in Li loop, accident analysis in safety and the redesign of the Li-Oil heat exchanger. We will present the development plan of A-FNS in this presentation.