抄録
The future of accelerator-based (Acc-based) neutron irradiation system (NIS) for boron neutron capture therapy (BNCT) using liquid lithium target was studied especially for the usage of neutrons from 7Li(p,n)7Be near threshold reactions. The next generation of NIS for BNCT is envisioned to have a non-invasive dose monitoring system during clinical BNCT performed at a downtown hospital. A liquid lithium film flow for the neutron producing target for BNCT has been established. The combination of a long-life neutron producing target such as a liquid lithium target and a stable proton accelerator such as RFQ is evaluated as a promising candidate for this future system. A new design standard for an Acc-based NIS for BNCT derived from the viewpoints of secondary cancer induced by BNCT, was proposed.