Ag concentration dependence of the radiophotoluminescence properties in Ag-doped Na–Al borate glasses

IF 2.8 3区物理与天体物理 Q3 CHEMISTRY, PHYSICAL

Radiation Physics and Chemistry Pub Date : 2025-03-28 DOI:10.1016/j.radphyschem.2025.112769

Hiroki Kawamoto, Yutaka Fujimoto, Keisuke Asai

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引用次数: 0

Abstract

Radiophotoluminescence (RPL) is the phenomenon of emission from luminescence centers formed by ionizing radiation and is utilized as the principle of luminescent-type dosimeters. In this study, we investigated the Ag concentration dependence of the RPL properties of Ag-doped Na–Al borate glass to find optimal Ag concentration for dosimeter application. In all samples, a broad emission band peaking at 650 nm was observed after X-ray irradiation. The sensitivity was in the order of 0.4 < 1.0 < 8.0 < 2.0 < 4.0 mol%. Hence, the optimal Ag concentration for personal dosimetry, which requires high sensitivity, was found to be 4.0 mol%. In addition, saturation of the RPL intensity occurred at a lower dose in glass with a higher concentration of Ag. Therefore, the glass with lower Ag concentration was thought to be appropriate for dosimeter used in high dose environments. In addition, the time to complete build-up tended to increase in the glass with a higher Ag concentration. Furthermore, the thermal stability of the RPL centers improved in the glass with a higher concentration of Ag.

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来源期刊

Radiation Physics and Chemistry 化学-核科学技术

CiteScore

5.60

自引率

17.20%

发文量

574

审稿时长

12 weeks

期刊介绍： Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.