Univ-Lille, CNRS, UMR 8523-PhLAM-Physique des Lasers Atomes et Molécules, F-59000 Lille, France.
UMR 7010, Institut de Physique de Nice (INPHYNI), Université Côte d'Azur, 06108 Nice, France.
Sensors (Basel). 2023 May 16;23(10):4785. doi: 10.3390/s23104785.
Cerium-doped-silica glasses are widely used as ionizing radiation sensing materials. However, their response needs to be characterized as a function of measurement temperature for application in various environments, such as in vivo dosimetry, space and particle accelerators. In this paper, the temperature effect on the radioluminescence (RL) response of Cerium-doped glassy rods was investigated in the 193-353 K range under different X-ray dose rates. The doped silica rods were prepared using the sol-gel technique and spliced into an optical fiber to guide the RL signal to a detector. Then, the experimental RL levels and kinetics measurements during and after irradiation were compared with their simulation counterparts. This simulation is based on a standard system of coupled non-linear differential equations to describe the processes of electron-hole pairs generation, trapping-detrapping and recombination in order to shed light on the temperature effect on the RL signal dynamics and intensity.
掺铈硅玻璃被广泛用作电离辐射传感材料。然而，为了将其应用于各种环境中，如体内剂量测定、空间和粒子加速器，需要将其响应特性作为测量温度的函数进行表征。在本文中，研究了在不同 X 射线剂量率下，193-353 K 范围内掺铈玻璃棒的辐射发光（RL）响应的温度效应。采用溶胶-凝胶技术制备掺杂二氧化硅棒，并将其拼接成光纤，以引导 RL 信号到探测器。然后，将辐照期间和辐照后的实验 RL 水平和动力学测量值与模拟值进行了比较。该模拟基于一个标准的耦合非线性微分方程组系统，用于描述电子-空穴对的产生、俘获-脱陷和复合过程，以揭示 RL 信号动力学和强度的温度效应。
