[2H16-21] Neutron Measurement and BNCT

[2H17] Improvement study on a liquid-moderator-based neutron spectrometer

*Shingo Tamaki^2,1, Fuminobu Sato¹, Isao Murata¹ (1. Graduate School of Engineering, Osaka University, 2. Research Fellow of Japan Society for the Promotion of Science (DC))

Keywords:neutron, Boron Neutron Capture Therapy, Bonner Sphere Spectrometer, unfolding

To measure the neutron spectrum in irradiation field of accelerator based neutron source for BNCT, we have been developing a liquid-moderator-based neutron spectrometer. In this study, we perfomed the design study and numerical simulation on the improved design spectrometer. As a result, this improved spectrometer enabled us to measure the angular neutron flux spectrum.