[2A10-14] Medical Applications

[2A13] Characterization of Real-Time Neutron Thin-Silicon Sensor for Boron Neutron Capture Therapy

*Masahi Takada¹, Satoru Endo³, Hiroki Tanaka⁴, Tetsuro Matsumoto², Akihiko Masuda², Tomoya Nunomiya⁵, Kei Aoyama⁵, Satoshi Nakamura⁶, Masaru Nakamura⁷, Takashi Nakamura^5,8 (1. National Defense Academy of Japan, 2. National Institute Advance Science Technology, 3. Hiroshima University, 4. Kyoto University, 5. Fuji Electric Co., 6. National Cancer Center Hospital, 7. Cancer Intelligence Care System, Inc., 8. Tohoku Univ.)

Keywords:Neutron Measurement, Silicon Detector, Boron Neutron Capture Therapy, Real-Time Measurement, Monte Carlo Simulation, Thermal Neutron, Gamma Ray, Particle-Emission Reaction

We can measure thermal neutron beams directly and in real time at Boron Neutron Capture Therapy (BNCT) fields using our thin silicon sensor, which has small sensivity to gamma rays. We characterized neutron sensor responses to high-flux neutron and gamma ray responses. The neutron sensors are comprised of the Si sensor attached with LiF radiator or that without LiF. The neutron sensor has an advantage of using same neutron reaction as the BNCT.