Li2B4O7:Dy3+,Ce3+ 玻璃的热致发光特性及其在剂量测定领域的应用潜力

IF 3.8 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Pub Date : 2024-11-18 DOI:10.1016/j.optmat.2024.116443

Tran Ngoc , Nguyen Xuan Ca , Nguyen Viet Ha , Tran Thi Chung Thuy , Nguyen Thi Huong , Luong Duy Thanh , Nguyen Van Nghia , Phan Van Do

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引用次数: 0

摘要

在这项研究中，我们利用熔体淬火技术成功制备了共掺杂 Ce3+ 和 Dy3+ 离子的锂硼玻璃（Li2B4O7:Ce3+,Dy3+ 或 LBO:Ce3+,Dy3+）。我们的主要目的是研究该材料的热致发光（TL）特性及其在剂量测定领域的应用潜力。我们通过辉光曲线和 TL 光谱研究了 Li2B4O7:Ce3+,Dy3+ 玻璃的 TL 特性。提出了这些玻璃的热致发光机制。找到了研究 Li2B4O7:Ce3+,Dy3+ 玻璃热致发光过程的最佳条件。利用峰形法分析了主峰（225 °C）的动力学参数，例如活化能、寿命和电子俘获中心的频率因子。详细研究了估计材料应用潜力的重要因素，如相对灵敏度、线性响应、剂量检测阈值、平均标准偏差、衰减率、再现性和内在精度。研究结果表明，Li2B4O7:Ce3+,Dy3+ 玻璃在医疗和食品辐照剂量测定方面具有很大的应用潜力。

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Thermoluminescence properties of the Li2B4O7:Dy3+,Ce3+ glasses and their application potential in the dosimetry field

In this study, we have successfully fabricated the lithium-borate glasses co-doped with Ce³⁺ and Dy³⁺ ions (Li₂B₄O₇:Ce³⁺,Dy³⁺ or LBO: Ce³⁺,Dy³⁺) using the melt quenching technique. Our main purpose is to study the thermoluminescence (TL) characteristics and application potential of the material in the dosimetry area. The TL properties of the Li₂B₄O₇:Ce³⁺,Dy³⁺ glasses were studied through the glow curve and TL spectra. The thermoluminescence mechanism for these glasses has been proposed. The optimal conditions for studying of the TL process have been found for the Li₂B₄O₇:Ce³⁺,Dy³⁺ glasses. The kinetic parameters of the main peak (225 °C), for example, the activation energy, lifetime, and frequency factor of the electronic trapping centers were analyzed using the peak shape method. The important factors to estimate the application potential of the material, such as the relative sensitivity, linear responses, dose detection threshold, mean standard deviation, fading rate, reproducibility, and intrinsic precision have been studied in detail. The obtained results showed that the Li₂B₄O₇:Ce³⁺,Dy³⁺ glasses have a high potential for dosimetry applications in medical and food irradiation.

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来源期刊

Optical Materials 工程技术-材料科学：综合

CiteScore

6.60

自引率

12.80%

发文量

1265

审稿时长

38 days

期刊介绍： Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials. OPTICAL MATERIALS focuses on: • Optical Properties of Material Systems; • The Materials Aspects of Optical Phenomena; • The Materials Aspects of Devices and Applications. Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.