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
Abstract
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.
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.