{"title":"印度喀拉拉邦南部沿海环境放射性核素粒度富集及辐射危害评价的系统调查","authors":"P. Divya, C. Kaliprasad, V. Prakash","doi":"10.1504/ijnest.2020.10030865","DOIUrl":null,"url":null,"abstract":"The concentrations of natural radionuclides 40K, 226Ra and 232Th in sand samples collected from southern coastal parts of Kerala were determined by NaI(Tl) detector. The activities obtained for various grain sizes have been compared in order to understand the enrichment pattern. Sand with a grain size of 63-125 μm showed enhanced level of radionuclides concentration. The dose to the populace was also calculated from the activities of radionuclides in order to assess the radiation hazards. The calculated values of risk assessment parameters were not within the safe limits, which indicates the radiation hazards to the population due to these radionuclides are significant. However, the observed dose rates were well below the reported average values for other high background radiation areas. The results of the present systematic investigation are presented and discussed here in detail.","PeriodicalId":35144,"journal":{"name":"International Journal of Nuclear Energy Science and Technology","volume":" ","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2020-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"A systematic investigation on grain size enrichment of radionuclides and assessment of radiation hazards along the southern coastal environment of Kerala, India\",\"authors\":\"P. Divya, C. Kaliprasad, V. Prakash\",\"doi\":\"10.1504/ijnest.2020.10030865\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The concentrations of natural radionuclides 40K, 226Ra and 232Th in sand samples collected from southern coastal parts of Kerala were determined by NaI(Tl) detector. The activities obtained for various grain sizes have been compared in order to understand the enrichment pattern. Sand with a grain size of 63-125 μm showed enhanced level of radionuclides concentration. The dose to the populace was also calculated from the activities of radionuclides in order to assess the radiation hazards. The calculated values of risk assessment parameters were not within the safe limits, which indicates the radiation hazards to the population due to these radionuclides are significant. However, the observed dose rates were well below the reported average values for other high background radiation areas. The results of the present systematic investigation are presented and discussed here in detail.\",\"PeriodicalId\":35144,\"journal\":{\"name\":\"International Journal of Nuclear Energy Science and Technology\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-08-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Nuclear Energy Science and Technology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1504/ijnest.2020.10030865\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"Energy\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Nuclear Energy Science and Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1504/ijnest.2020.10030865","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Energy","Score":null,"Total":0}
A systematic investigation on grain size enrichment of radionuclides and assessment of radiation hazards along the southern coastal environment of Kerala, India
The concentrations of natural radionuclides 40K, 226Ra and 232Th in sand samples collected from southern coastal parts of Kerala were determined by NaI(Tl) detector. The activities obtained for various grain sizes have been compared in order to understand the enrichment pattern. Sand with a grain size of 63-125 μm showed enhanced level of radionuclides concentration. The dose to the populace was also calculated from the activities of radionuclides in order to assess the radiation hazards. The calculated values of risk assessment parameters were not within the safe limits, which indicates the radiation hazards to the population due to these radionuclides are significant. However, the observed dose rates were well below the reported average values for other high background radiation areas. The results of the present systematic investigation are presented and discussed here in detail.
期刊介绍：
Today, nuclear reactors generate nearly one quarter of the electricity in nations representing two thirds of humanity, and other nuclear applications are integral to many aspects of the world economy. Nuclear fission remains an important option for meeting energy requirements and maintaining a balanced worldwide energy policy; with major countries expanding nuclear energy"s role and new countries poised to introduce it, the key issue is not whether the use of nuclear technology will grow worldwide, even if public opinion concerning safety, the economics of nuclear power, and waste disposal issues adversely affect the general acceptance of nuclear power, but whether it will grow fast enough to make a decisive contribution to the global imperative of sustainable development.
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