Correlation between thermoluminescence and optically stimulated luminescence of LiMgPO4:Tb,Sm,B phosphor

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

Radiation Physics and Chemistry Pub Date : 2024-10-04 DOI:10.1016/j.radphyschem.2024.112279

Li Fu, Kaiyong Tang, Zungang Wang, Siyuan Zhang, Yan Zeng, Mo Zhou, HaiJun Li

{"title":"Correlation between thermoluminescence and optically stimulated luminescence of LiMgPO4:Tb,Sm,B phosphor","authors":"Li Fu, Kaiyong Tang, Zungang Wang, Siyuan Zhang, Yan Zeng, Mo Zhou, HaiJun Li","doi":"10.1016/j.radphyschem.2024.112279","DOIUrl":null,"url":null,"abstract":"<div><div>LiMgPO<sub>4</sub>:Tb,Sm,B is a promising material for dosimetry applications, particularly in optically stimulated luminescence (OSL). This study aimed to explore residual thermoluminescence (R-TL) glow curves after different light bleaching times to establish a connection between TL traps and OSL components for the first time. The OSL decay curves and R-TL glow curve intensities were analyzed using exponential decay functions to account for optical decay, enabling identification of the OSL components and bleaching decay rates of each TL peak. A correlation between the decay rates of OSL components and bleaching decay rates of TL peaks, as well as the relationship between increased OSL intensity and decreased TL intensity were studied for different irradiation doses. Various bleaching models were evaluated to determine the most appropriate one for LiMgPO<sub>4</sub>:Tb,Sm,B. A non-thermally sensitive deep electron trap is proposed to enhance the understanding of the luminescence mechanism in LiMgPO<sub>4</sub>:Tb,Sm,B.</div></div>","PeriodicalId":20861,"journal":{"name":"Radiation Physics and Chemistry","volume":"226 ","pages":"Article 112279"},"PeriodicalIF":2.8000,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radiation Physics and Chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0969806X24007710","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

LiMgPO₄:Tb,Sm,B is a promising material for dosimetry applications, particularly in optically stimulated luminescence (OSL). This study aimed to explore residual thermoluminescence (R-TL) glow curves after different light bleaching times to establish a connection between TL traps and OSL components for the first time. The OSL decay curves and R-TL glow curve intensities were analyzed using exponential decay functions to account for optical decay, enabling identification of the OSL components and bleaching decay rates of each TL peak. A correlation between the decay rates of OSL components and bleaching decay rates of TL peaks, as well as the relationship between increased OSL intensity and decreased TL intensity were studied for different irradiation doses. Various bleaching models were evaluated to determine the most appropriate one for LiMgPO₄:Tb,Sm,B. A non-thermally sensitive deep electron trap is proposed to enhance the understanding of the luminescence mechanism in LiMgPO₄:Tb,Sm,B.

查看原文本刊更多论文

LiMgPO4:Tb,Sm,B 荧光粉的热致发光与光激发发光之间的相关性

LiMgPO4:Tb,Sm,B是一种很有前途的剂量测定应用材料，尤其是在光激发发光（OSL）方面。本研究旨在探索不同光漂白时间后的残余热致发光（R-TL）辉光曲线，从而首次建立 TL 陷阱与 OSL 成分之间的联系。利用指数衰减函数分析了OSL衰减曲线和R-TL辉光曲线强度，以考虑光学衰减，从而确定了每个TL峰的OSL成分和漂白衰减率。研究了不同辐照剂量下 OSL 成分衰减率与 TL 峰漂白衰减率之间的相关性，以及 OSL 强度增加与 TL 强度降低之间的关系。对各种漂白模型进行了评估，以确定最适合 LiMgPO4:Tb,Sm,B 的模型。提出了一种非热敏深电子陷阱，以加深对 LiMgPO4:Tb,Sm,B 中发光机制的理解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

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.