{"title":"Radiophotoluminescence from Au-doped soda-lime silicate glass","authors":"Hiroki Kawamoto, Yutaka Fujimoto, Keisuke Asai","doi":"10.1016/j.radmeas.2024.107320","DOIUrl":null,"url":null,"abstract":"<div><div>Radiophotoluminescence (RPL) is the phenomenon of emission from luminescence centers formed by ionizing radiation (RPL centers) and is applied in dosimeters. Knowledge regarding the development of RPL materials is limited and development of new RPL materials is required. In this study, we investigate the RPL properties of Au-doped soda-lime silicate glass. After X-ray irradiation, an emission band appeared at 650–900 nm upon excitation at 330 nm, and the emission intensity increased linearly in the dose range of 3.72–100 Gy. The UV–vis absorption, photoluminescence, and electron spin resonance spectroscopy revealed that the Au dimer, non-bridged oxygen hole center, and E’ center (electrons trapped in the glass host) were formed by ionizing radiation. The Au dimer acts as the RPL center. In addition, build-up, that is, progressive formation of RPL centers at room temperature, was completed in 20 min, and bleaching by 330 nm light was induced in Au-doped soda-lime silicate glass.</div></div>","PeriodicalId":21055,"journal":{"name":"Radiation Measurements","volume":null,"pages":null},"PeriodicalIF":1.6000,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radiation Measurements","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1350448724002683","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"NUCLEAR SCIENCE & TECHNOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Radiophotoluminescence (RPL) is the phenomenon of emission from luminescence centers formed by ionizing radiation (RPL centers) and is applied in dosimeters. Knowledge regarding the development of RPL materials is limited and development of new RPL materials is required. In this study, we investigate the RPL properties of Au-doped soda-lime silicate glass. After X-ray irradiation, an emission band appeared at 650–900 nm upon excitation at 330 nm, and the emission intensity increased linearly in the dose range of 3.72–100 Gy. The UV–vis absorption, photoluminescence, and electron spin resonance spectroscopy revealed that the Au dimer, non-bridged oxygen hole center, and E’ center (electrons trapped in the glass host) were formed by ionizing radiation. The Au dimer acts as the RPL center. In addition, build-up, that is, progressive formation of RPL centers at room temperature, was completed in 20 min, and bleaching by 330 nm light was induced in Au-doped soda-lime silicate glass.
期刊介绍：
The journal seeks to publish papers that present advances in the following areas: spontaneous and stimulated luminescence (including scintillating materials, thermoluminescence, and optically stimulated luminescence); electron spin resonance of natural and synthetic materials; the physics, design and performance of radiation measurements (including computational modelling such as electronic transport simulations); the novel basic aspects of radiation measurement in medical physics. Studies of energy-transfer phenomena, track physics and microdosimetry are also of interest to the journal.
Applications relevant to the journal, particularly where they present novel detection techniques, novel analytical approaches or novel materials, include: personal dosimetry (including dosimetric quantities, active/electronic and passive monitoring techniques for photon, neutron and charged-particle exposures); environmental dosimetry (including methodological advances and predictive models related to radon, but generally excluding local survey results of radon where the main aim is to establish the radiation risk to populations); cosmic and high-energy radiation measurements (including dosimetry, space radiation effects, and single event upsets); dosimetry-based archaeological and Quaternary dating; dosimetry-based approaches to thermochronometry; accident and retrospective dosimetry (including activation detectors), and dosimetry and measurements related to medical applications.
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