Neutron beam performance of iBNCT as linac-based neutron source for boron neutron capture therapy Hiroaki Kumada, Susumu Tanaka, Fujio Naito, Toshikazu Kurihara, Takashi Sugimura, Hideyuki Sakurai, Akira Matsumura and Takeji Sakae EPJ Web Conf., 231 (2020) 01003 Published online: 11 March 2020 DOI: 10.1051/epjconf/202023101003