{"title":"A comparative study of long-term measurements of natural gamma absorbed dose rate in outdoor air by TLD and GM detectors","authors":"Pratip Mitra, S. K. Sahu, A. Vinod Kumar","doi":"10.1007/s10967-024-09946-0","DOIUrl":null,"url":null,"abstract":"<div><p>This paper investigates and compares two widely employed techniques for measuring natural gamma absorbed dose rate in outdoor air: the thermoluminescent dosimeter (TLD) and the Geiger-Mueller (GM) detector-based environmental radiation monitor (ERM). Over two decades (2003–2023), measurements were conducted at eighteen investigation sites having a wide variation of local dose rate values. The TLDs accumulated quarterly doses, while the ERMs recorded hourly dose rates. The comparison of mean dose rates obtained by the two methods agreed within ± 30% for all sites. A strong positive correlation was obtained between the two methods.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 3","pages":"2391 - 2396"},"PeriodicalIF":1.6000,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10967-024-09946-0.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Radioanalytical and Nuclear Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10967-024-09946-0","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
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Abstract
This paper investigates and compares two widely employed techniques for measuring natural gamma absorbed dose rate in outdoor air: the thermoluminescent dosimeter (TLD) and the Geiger-Mueller (GM) detector-based environmental radiation monitor (ERM). Over two decades (2003–2023), measurements were conducted at eighteen investigation sites having a wide variation of local dose rate values. The TLDs accumulated quarterly doses, while the ERMs recorded hourly dose rates. The comparison of mean dose rates obtained by the two methods agreed within ± 30% for all sites. A strong positive correlation was obtained between the two methods.
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An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.
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