Radiophotoluminescence properties of silver-doped lithium–aluminum borate glasses

IF 3.6 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence Pub Date : 2025-09-20 DOI:10.1016/j.jlumin.2025.121563

Ryoichi Morishita, Hiroki Kawamoto, Yutaka Fujimoto, Keisuke Asai

引用次数: 0

Abstract

Radiophotoluminescence (RPL) is a phenomenon in which luminescence is emitted from radiation-induced luminescent centers, known as RPL centers. Upon optical excitation, these centers are promoted to excited states and subsequently emit photoluminescence. This property has been utilized in passive dosimetry. However, only a limited number of RPL-active materials have been reported to date, making the development of new materials an important challenge. In this study, we investigated the RPL properties of silver-doped lithium–aluminum borate glasses as a potential novel RPL material.

After X-ray irradiation, the glasses exhibited dose-dependent luminescence and characteristic ESR signals, indicating the formation of Ag-related centers. The detectable dose range extended from 53.7 to 1000 Gy. Thermal annealing affected both the luminescence and ESR responses. These results suggest that Ag-doped Li–Al borate glass is a promising candidate for a reusable RPL material.

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掺银锂铝硼酸盐玻璃的辐射光致发光特性

辐射光致发光（RPL）是一种从辐射诱导的发光中心（称为RPL中心）发出发光的现象。在光激发下，这些中心被提升到激发态并随后发出光致发光。这一性质已被用于被动剂量测定。然而，迄今为止只有有限数量的rpl活性材料被报道，这使得新材料的开发成为一个重要的挑战。在这项研究中，我们研究了掺银锂铝硼酸盐玻璃作为一种潜在的新型RPL材料的RPL性能。经过x射线照射后，玻璃表现出剂量依赖性发光和特征ESR信号，表明ag相关中心的形成。可探测剂量范围从53.7至1000戈瑞。热退火对发光和ESR响应均有影响。这些结果表明，掺银硼酸锂铝玻璃是一种很有前途的可重复使用的RPL材料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Luminescence 物理-光学

CiteScore

6.70

自引率

13.90%

发文量

850

审稿时长

3.8 months

期刊介绍： The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid. We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.