[12p-S202-1~21] 2.5 Radiation-induced phosphors

[12p-S202-3] Fabrication of a Heavy metal compound nanoparticles-doped plastic scintillator and evaluation of high-energy X-ray detection characteristic

〇(M1)Shusuke Komatsuzaki¹, Akito Watanabe¹, Atsusi Satou¹, Masanori Koshimizu¹, Akira Yoko¹, Gimyeong Seong¹, Takaaki Tomai¹, Tadafumi Adschiri¹, Syunji Kishimoto², Yutaka Fujimoto¹, Keisuke Asai¹ (1.Tohoku Univ., 2.KEK)

Keywords:plastic scintillator, nanoparticle, Synchrotron radiation

There is an increasing demand for the development of detectors with high detection efficiency and high-speed response in high-count measurement of high-energy radiation in synchrotron radiation facilities. Although plastic scintillators (PS) have been studied for a long time, the problem of insufficient detection efficiency remains unsolved. In this study, PS with Bi₂O₃ nanoparticles added was produced to optimize the nanoparticle concentration. We aimed to develop a PS that has both a large amount of light emission and high detection efficiency.