Noemi Aguiar Silva, Sonia Hatsue Tatumi, René Rojas Rocca, Márcio Yee, K. R. Nagabushana, Alvaro de Farias Soares, Isadora Augusta Machado Duque, Caroline Paschoal Fernandes
{"title":"UV-C Radiation Dosimetry Using Phototransfer OSL of Green Quartz – Teflon Pellets","authors":"Noemi Aguiar Silva, Sonia Hatsue Tatumi, René Rojas Rocca, Márcio Yee, K. R. Nagabushana, Alvaro de Farias Soares, Isadora Augusta Machado Duque, Caroline Paschoal Fernandes","doi":"10.1007/s13538-024-01516-9","DOIUrl":null,"url":null,"abstract":"<div><p>This study presents the fabrication of dosimeters based on natural quartz crystals and polytetrafluoroethylene (Teflon®), and their use in ultraviolet type C (UV-C) radiation dosimetry. The luminescence was evaluated by measurements of phototransferred optically stimulated luminescence (PT-OSL), in which the signal from deep traps was used. These dosimeters were characterized for their reproducibility, dose–response curve, fading and computerized deconvolution study. The PT-OSL signal proved to be reproducible, and its growth of the PT-OSL signal was supralinear up to a UV-C dose of 34 mJ/cm<sup>2</sup> approximately. A theoretical study of the PT-OSL signals was conducted using the general order model, revealing three individual components. Fading results demonstrated no significant signal loss within the first two hours. Spatial measurements showed that successful 2D dosimetry was performed using a UV-C radiation.\n</p></div>","PeriodicalId":499,"journal":{"name":"Brazilian Journal of Physics","volume":"54 4","pages":""},"PeriodicalIF":1.7000,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Brazilian Journal of Physics","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s13538-024-01516-9","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
This study presents the fabrication of dosimeters based on natural quartz crystals and polytetrafluoroethylene (Teflon®), and their use in ultraviolet type C (UV-C) radiation dosimetry. The luminescence was evaluated by measurements of phototransferred optically stimulated luminescence (PT-OSL), in which the signal from deep traps was used. These dosimeters were characterized for their reproducibility, dose–response curve, fading and computerized deconvolution study. The PT-OSL signal proved to be reproducible, and its growth of the PT-OSL signal was supralinear up to a UV-C dose of 34 mJ/cm2 approximately. A theoretical study of the PT-OSL signals was conducted using the general order model, revealing three individual components. Fading results demonstrated no significant signal loss within the first two hours. Spatial measurements showed that successful 2D dosimetry was performed using a UV-C radiation.
期刊介绍：
The Brazilian Journal of Physics is a peer-reviewed international journal published by the Brazilian Physical Society (SBF). The journal publishes new and original research results from all areas of physics, obtained in Brazil and from anywhere else in the world. Contents include theoretical, practical and experimental papers as well as high-quality review papers. Submissions should follow the generally accepted structure for journal articles with basic elements: title, abstract, introduction, results, conclusions, and references.
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