{"title":"Thermoluminescence properties of Y3Al5O12:Ce transparent ceramics at different linear energy transfers","authors":"Kensei Ichiba , Masanori Koshimizu , Go Okada , Yutaka Fujimoto , Kenichi Watanabe , Yusuke Koba , Takumi Kato , Daisuke Nakauchi , Noriaki Kawaguchi , Takayuki Yanagida","doi":"10.1016/j.nimb.2025.165784","DOIUrl":null,"url":null,"abstract":"<div><div>Thermoluminescence (TL) properties of Y<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>(YAG):Ce with different Ce concentrations after irradiations of gamma rays or heavy charged particles investigated analyzed. The TL glow curves were obtained after irradiations of gamma rays at different doses and the heavy charged particles at different linear energy transfers (LETs). The glow curves significantly depended on the gamma-ray dose or LET for YAG:Ce with low Ce concentration. This behavior indicates that the preferential trap centers are different for irradiations of gamma rays and heavy charged particles. The TL intensity decreased significantly with LET. The decrease can be explained with competition between the trapping of electron-hole pairs, which will result in TL upon heating, and the quenching of electron-hole pairs owing to excited states interaction. Notably, the decrease in the TL intensity with LET was suppressed at high Ce concentration. This is explained with faster trapping of electron-hole pairs becuase Ce<sup>3+</sup> ions act as hole trapping centers, which results in a suppressed contribution of the quenching in the above-mentioned competition.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"566 ","pages":"Article 165784"},"PeriodicalIF":1.4000,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0168583X25001740","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"INSTRUMENTS & INSTRUMENTATION","Score":null,"Total":0}
引用次数: 0
Abstract
Thermoluminescence (TL) properties of Y3Al5O12(YAG):Ce with different Ce concentrations after irradiations of gamma rays or heavy charged particles investigated analyzed. The TL glow curves were obtained after irradiations of gamma rays at different doses and the heavy charged particles at different linear energy transfers (LETs). The glow curves significantly depended on the gamma-ray dose or LET for YAG:Ce with low Ce concentration. This behavior indicates that the preferential trap centers are different for irradiations of gamma rays and heavy charged particles. The TL intensity decreased significantly with LET. The decrease can be explained with competition between the trapping of electron-hole pairs, which will result in TL upon heating, and the quenching of electron-hole pairs owing to excited states interaction. Notably, the decrease in the TL intensity with LET was suppressed at high Ce concentration. This is explained with faster trapping of electron-hole pairs becuase Ce3+ ions act as hole trapping centers, which results in a suppressed contribution of the quenching in the above-mentioned competition.
期刊介绍:
Section B of Nuclear Instruments and Methods in Physics Research covers all aspects of the interaction of energetic beams with atoms, molecules and aggregate forms of matter. This includes ion beam analysis and ion beam modification of materials as well as basic data of importance for these studies. Topics of general interest include: atomic collisions in solids, particle channelling, all aspects of collision cascades, the modification of materials by energetic beams, ion implantation, irradiation - induced changes in materials, the physics and chemistry of beam interactions and the analysis of materials by all forms of energetic radiation. Modification by ion, laser and electron beams for the study of electronic materials, metals, ceramics, insulators, polymers and other important and new materials systems are included. Related studies, such as the application of ion beam analysis to biological, archaeological and geological samples as well as applications to solve problems in planetary science are also welcome. Energetic beams of interest include atomic and molecular ions, neutrons, positrons and muons, plasmas directed at surfaces, electron and photon beams, including laser treated surfaces and studies of solids by photon radiation from rotating anodes, synchrotrons, etc. In addition, the interaction between various forms of radiation and radiation-induced deposition processes are relevant.