{"title":"Natural radioactivity and radiological hazard assessment of coal samples collected from Kasimpur thermal power plant, Kasimpur (U.P.), India","authors":"A. Sharma, R. Sonkawade, Avinash C. Sharma","doi":"10.1504/ijlr.2015.074412","DOIUrl":null,"url":null,"abstract":"Low-level gamma ray spectroscopy with a NaI (TI) gamma radiation detector was used for the measurement of activity concentrations of radionuclides 226Ra, 232Th and 40K. Activity concentrations of radium were found to vary from 12 to 39 Bq kg−1, thorium ranged from 15 to 49 Bq kg−1 whereas 40K ranged from 157 to 460 Bq kg−1. Radium equivalent activity has been found to vary from 50.8 to 118 Bq kg−1 and absorbed gamma dose rates varied from 24 to 53.2 nGy h−1 whereas corresponding outdoor annual effective dose found to vary from 0.029 to 0.065 mSv y−1. The calculated values of Hex and Hin range from 0.13 to 0.31 and 0.16 to 0.41 respectively whereas values of gamma and alpha index vary from 0.19 to 0.42 and 0.06 to 0.19 respectively. The values of hazard index are under the action limit.","PeriodicalId":14141,"journal":{"name":"International Journal of Low Radiation","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2016-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1504/ijlr.2015.074412","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Low Radiation","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1504/ijlr.2015.074412","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Medicine","Score":null,"Total":0}
引用次数: 0
Abstract
Low-level gamma ray spectroscopy with a NaI (TI) gamma radiation detector was used for the measurement of activity concentrations of radionuclides 226Ra, 232Th and 40K. Activity concentrations of radium were found to vary from 12 to 39 Bq kg−1, thorium ranged from 15 to 49 Bq kg−1 whereas 40K ranged from 157 to 460 Bq kg−1. Radium equivalent activity has been found to vary from 50.8 to 118 Bq kg−1 and absorbed gamma dose rates varied from 24 to 53.2 nGy h−1 whereas corresponding outdoor annual effective dose found to vary from 0.029 to 0.065 mSv y−1. The calculated values of Hex and Hin range from 0.13 to 0.31 and 0.16 to 0.41 respectively whereas values of gamma and alpha index vary from 0.19 to 0.42 and 0.06 to 0.19 respectively. The values of hazard index are under the action limit.
期刊介绍:
The IJLR is a peer-reviewed journal dedicated to the publication of research articles, review papers and technical notes in all domains related to low-dose radiation, among which are the biological and health effects in humans and the biota, in vitro and in vivo research on low radiation effects, regulatory and policy aspects, risk estimation and public perception.