Silica gel bead material, with its porous structure, high surface area, uniform particle size, stability, and excellent adsorption capacity, is a key material for advancing dosimeter technologies. These qualities make it ideal for accurately measuring and monitoring ionizing radiation in various environments. The research aims to characterize the response of different ionizing radiation sources on desiccant silica gel beads, laying the groundwork for potential applications in medical dosimetry. In this study, silica gel bead samples were subjected to various radiation sources, including gamma rays with an average energy of 1.25 MeV, photons (6 MV), and electrons (6 MeV). The radiation was administered at doses within the range of 2 Gy–20 Gy, which is commonly used in radiotherapy to evaluate the dosimetric behaviour of the desiccant silica gel bead samples using the conventional thermoluminescence (TL) technique. The silica gel bead samples have been found to provide a highly linear dose response within the dose range of interest, with the coefficient of determination (R2) ranging between 0.91 and 0.96. Additionally, the samples show high sensitivity at lower doses and maintain excellent reproducibility, with a standard deviation of less than 4%. In regard to fading evaluation, desiccant silica gel beads exhibit minimal signal loss within 35 days post-irradiation, averaging between 20% and 38%. The findings of this study are promising for developing a new dosimeter, which will enhance radiation monitoring and measurement practices in various environments. These improvements cover dosimetric applications in medical and industrial fields including food safety and agricultural development.

中文翻译：

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探索干燥剂硅胶珠作为辐射剂量测定新材料的可行性：初步研究


硅胶珠材料具有多孔结构、高比表面积、粒径均匀、稳定性好以及优异的吸附能力，是推进剂量计技术的关键材料。这些品质使其成为精确测量和监测各种环境中的电离辐射的理想选择。该研究旨在表征不同电离辐射源对干燥剂硅胶珠的响应，为医疗剂量测定的潜在应用奠定基础。在这项研究中，硅胶珠样品受到各种辐射源的照射，包括平均能量为 1.25 MeV 的伽马射线、光子 (6 MV) 和电子 (6 MeV)。辐射剂量在 2 Gy–20 Gy 范围内，这通常用于放射治疗，以使用传统热释光 (TL) 技术评估干燥剂硅胶珠样品的剂量学行为。已发现硅胶珠样品在感兴趣的剂量范围内提供高度线性的剂量响应，决定系数 (R2) 范围在 0.91 至 0.96 之间。此外，样品在较低剂量下表现出高灵敏度，并保持出色的重现性，标准偏差小于 4%。在褪色评估方面，干燥剂硅胶珠在照射后 35 天内表现出最小的信号损失，平均在 20% 至 38% 之间。这项研究的结果有望开发出一种新型剂量计，从而增强各种环境中的辐射监测和测量实践。这些改进涵盖了医疗和工业领域的剂量测定应用，包括食品安全和农业发展。