این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Iranian Journal of Medical Physics، جلد ۱۴، شماره ۲، صفحات ۹۸-۱۰۳
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Estimation of Natural Radioactivity and Radiation Exposure in Environmental Soil Samples of Golestan, Iran
چکیده انگلیسی مقاله Introduction: Considering the risk of radiation, the measurement of the natural radiation sources seems to be necessary. In this study, the concentrations of the natural radionuclides, namely 226Ra, 232Th, and 40K, were measured in the soil samples taken from different locations of Golestan, Iran. The measurement results can also be used as a baseline to evaluate the impact of non-nuclear activities and the routine releases of nuclear installations. Materials and Methods: A total of 42 soil samples were collected. The samples were sealed for at least three weeks to ensure the secular equilibrium between 226Ra and 232Th and their respective radioactive progenies. The activity concentrations of natural radionuclides in soil samples were measured using a shielded HPGe detector. Results: The average activity concentrations of 226Ra, 232Th, and 40K were 23, 31, and 453 Bq.kg-1, respectively. To assess the radiological hazards, the Ra equivalent activity as well as the external and internal hazard indices were estimated. Radium equivalent varied within the range of 58.4-142.6 Bq.kg-1 with a mean value of 102.4 Bq.kg-1. The estimated mean values of Hex and Hin (0.28 and 0.34, respectively) in the area under investigation were lower than unity as desirable. Therefore, it did not pose any health risks to the population of the area. Conclusion: The results of this study were compared with those of other studies carried out in other countries. As the findings of the present study indicated, the health-related risks causing by the naturally accruing radionuclides was very low in the investigated area.
کلیدواژه‌های انگلیسی مقاله Exposure, gamma spectrometry, Iran, Natural radioactivity
نویسندگان مقاله پیمان لطفعلی نژاد | peyman lotfalinezhad
physics department, k. n. toosi university of technology, p.o. box 16315-1618, tehran, iran

سازمان اصلی تایید شده: دانشگاه صنعتی خواجه نصیرالدین طوسی (Khajeh nasir toosi university of technology)

صدیقه کاشیان | sedigheh kashian
radiation applications research school, nuclear science and technology research institute, tehran, iran.


محسن صالح کوتاهی | mohsen saleh kotahi
physics department, k. n. toosi university of technology, p.o. box 16315-1618, tehran, iran

سازمان اصلی تایید شده: دانشگاه صنعتی خواجه نصیرالدین طوسی (Khajeh nasir toosi university of technology)

علی اصغر fathivand | ali asghar fathivand
radiation applications research school, nuclear science and technology research institute, tehran, iran
نشانی اینترنتی http://ijmp.mums.ac.ir/article_8469.html
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زبان مقاله منتشر شده en
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نوع مقاله منتشر شده Original Paper
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