[15a-K502-1~10] 2.1 Radiation physics, Material development and characteristic evaluation

10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)

[15a-K502-7] Development of Cs₂O-BaO-P₂O₅ glass-ceramic near-infrared scintillators for high radiation field monitoring

〇Keita Miyajima¹, Akihiro Nishikawa¹, Takumi Kato¹, Daisuke Nakauchi¹, Noriaki Kawaguchi¹, Takayuki Yanagida¹ (1.NAIST)

Keywords:

scintillator

Nd-doped Cs₂O-BaO-P₂O₅ glass-ceramic scintillators were synthesized by the melt-quenching technique. The obtained samples exhibited scintillation in the near-infrared reagion, which originated from 4f-4f transitions of Nd³⁺. Their X-ray dose rate response functions were evaluated, and good linearity was observed at dose rates of 6–6000 mGy/h. The lower detection limit of X-ray dose rate was 3.5 mGy/h with our measurement setup, which was superior to Nd-doped infamous single crystalline scintillators.