We investigated the scintillation properties of Ce:GPS (Ce:Gd₂Si₂O₇), Pr:LuAG (Pr:Lu₃Al₅O₁₂), and LYSO (Lu_{2(1 − x)}Y_2xSiO₅) scintillators in high-temperature and high-radiation environments to evaluate their potential application in harsh environments. The temperature dependence of the scintillators was investigated from room temperature to 350 °C. The LYSO scintillator was very vulnerable to high temperatures while the light output of Pr:LuAG scintillator decreased rapidly above 200 °C. The Ce:GPS scintillator demonstrated almost constant light output to 250 °C and decrease about 30% at 300 °C. We also measured the changes in the light yield and transmittance of the scintillators in the range of 0–3.83 MGy. At the highest gamma rays radiation dose, the light output of Ce:GPS, Pr:LuAG, and LYSO compared to the reference scintillator were 15.3% ± 1.8%, 36.7% ± 3.1%, and 73.4% ± 2.6%, respectively. However, Ce:GPS demonstrated a pronounced and fast recovery via thermal annealing, and it recovered within 30 minutes at 400 °C and 1 hour at 300 °C. These properties permit the potential application of Ce:GPS in extreme environments.

我们研究了Ce：GPS（Ce：Gd ₂ Si ₂ O ₇），Pr：LuAG（Pr：Lu ₃ Al ₅ O ₁₂）和LYSO（Lu _2（1-x） Y _2x SiO ₅的闪烁特性）在高温和高辐射环境中的闪烁体，以评估其在恶劣环境中的潜在应用。研究了从室温到350°C的闪烁体的温度依赖性。LYSO闪烁体在高温下非常脆弱，而Pr：LuAG闪烁体的光输出在200°C以上迅速下降。Ce：GPS闪烁体显示出几乎恒定的光输出到250°C，并在300°C下下降了约30％。我们还测量了闪烁体在0–3.83 MGy范围内的光输出和透射率的变化。与参考闪烁体相比，在最高伽玛射线辐射剂量下，Ce：GPS，Pr：LuAG和LYSO的光输出分别为15.3％±1.8％，36.7％±3.1％和73.4％±2.6％。但是，Ce：GPS通过热退火显示出明显且快速的恢复，并且在400°C下30分钟内恢复，在300°C下1小时内恢复。这些特性允许Ce：GPS在极端环境中的潜在应用。