Abstract：
In clinical settings, standard dosimeters might miss radiation mishaps. Retrospective dosimeters could help to track personnel (such as patients and other staff who don\'t wear dosimeters) exceeding safe limits and assess long-term exposure trends. This study has investigated key thermoluminescence (TL) dosimetric characteristics, including the glow curve structure, dose-response, energy dependence, sensitivity and fading of various safety glasses that are used as screen protectors of smartphones subjected to photon irradiation. Among the studied glasses, the HD Anti-Peep safety glass for iPhone has been found to exhibit a linear dose-response with a regression coefficient of 99% within the dose range of 2-10 Gy. Moreover, all the safety glasses showed independence with respect to photon energy of 6 MV and 10 MV. The TL glow curves of the samples showed a broad glow peak between 125 °C and 325 °C at 10 Gy. The TL kinetic parameters of the safety glasses were also studied by analyzing the glow curves using the peak shape and initial rise method. The geometric factor (μg) is found to be within the range of 0.43-0.53, which indicates the suitability of applying Chen\'s general-order formula to calculate the kinetic parameters such as activation energy, frequency factor and trap lifetime. The activation energy (E) and frequency factor (s) are found in the range of 0.31-0.54 eV and 4.55 × 103 to 2.12 × 106 s-1 respectively obtained via the peak shape method. The relatively long trap lifetime and observed thermoluminescence features indicate that the HD Anti-Peep safety glass offers a better option to estimate dose retrospectively to ensure the safety of human health.
摘要：
在临床环境中，标准剂量计可能会错过辐射事故。回顾性剂量计可以帮助跟踪人员（如患者和其他不佩戴剂量计的工作人员）超过安全限值，并评估长期暴露趋势。本研究调查了关键的热释光（TL）剂量学特征，包括辉光曲线结构，剂量反应，能源依赖，灵敏度和褪色的各种安全眼镜被用作智能手机的屏幕保护受到光子辐射。在研究的眼镜中，已发现用于iPhone的HDAnti-Peep安全玻璃在2-10Gy的剂量范围内表现出线性剂量响应，回归系数为99％。此外，所有安全眼镜均显示出相对于6MV和10MV光子能量的独立性。样品的TL辉光曲线显示在125°C和325°C之间在10Gy下的宽辉光峰。还通过使用峰形和初始上升方法分析辉光曲线，研究了安全眼镜的TL动力学参数。发现几何因子（μg）在0.43-0.53范围内，这表明应用Chen的一般顺序公式计算活化能等动力学参数的适用性，频率因子和陷阱寿命。通过峰形方法获得的活化能（E）和频率因子（s）分别在0.31-0.54eV和4.55×103至2.12×106s-1的范围内。相对较长的陷阱寿命和观察到的热释光特征表明，HDAnti-Peep安全玻璃提供了更好的选择来回顾性地估计剂量，以确保人类健康的安全。
