[16p-K501-1~19] 2.2 Radiation generators, Detector development, Measurement technology

3:00 PM - 3:15 PM JST(6:00 AM - 6:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[16p-K501-8] Evaluation of the radiation response and absorbed dose of Nd-doped Lu₂O₃ near-infrared emitting scintillator in high dose rate region

〇Satoshi Ishizawa^2,1, Shunsuke Kurosawa^1,3,4, Akihiro Yamaji^1,3, Akira Yoshikawa^1,3,4,5, Takushi Takata⁶, Hiroki Tanaka⁶ (1.NICHe, Tohoku Univ, 2.JSPS Fellow (PD), 3.IMR, Tohoku Univ., 4.Osaka Univ, 5.C&A Corporation, 6.Kyoto Univ.)

Keywords:

Scintillator (high melting point material),Near infrared emission,High dose rate region

Dose measurement in the high-dose-rate region is expected to be achieved with a remote dosimetry system consisting of a scintillator, an optical fiber and a photodetector. In this study, we have developed Nd:Lu₂O₃ scintillator with high density (9.4 g/cm³) and near-infrared emission (~900 nm) for the dosimetry system using the core-heating method. In this presentation, we will report on the demonstration of the dosimetry system using Nd:Lu₂O₃ in the range of 6-660 Gy/h with ⁶⁰Co as well as the results of absorbed dose calculations using PHITS.