[2H16-21] Neutron Measurement and BNCT

[2H19] Development of a prompt gamma ray imaging detector using LaBr₃(Ce)scintillator for BNCT

*Keita Okazaki¹, Kiyotaka Akabori², Takushi Takata³, Yoshinori Sakurai³, Hiroki Tanaka³ (1. Kyoto University, 2. Sumitomo Heavy Industries,Ltd, 3. Kyoto University Research Reactor Institute)

Keywords:scintillator, Boron Neutron Capture Therapy, LaBr3(Ce), MPPC

A prompt gamma ray imaging detector with LaBr₃(Ce) and 8x8 arrays MPPC was developed for BNCT. Detector characterization was performed using boron samples. Results showed that this imaging detector can discriminate between 478 and 511 keV gamma rays and measure two dimensional boron distribution in real-time, even though the two peaks overlapped partially.