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Monitoring the Concentration of 238u, 232th, 40k and 137cs of Soil in Anarak-Khour District, Central Iran
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نویسنده
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عبدی ر م ,احسان پور ا ,مستجاب الدعوتی م ,باقری ه
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منبع
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Caspian Journal Of Environmental Sciences - 2015 - دوره : 13 - شماره : 3 - صفحه:247 -257
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چکیده
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This study was conducted to determine the radioactivity concentration in soil samples of anarak-khour district in central iran. totally, forty eight soil samples from a depth of 10-15 cm were taken from seven different sites for monitoring. the radioactivity concentration of 238u, 232th, 137cs and 40k in soil samples was determined, using a high resolution (hpge detector, p-type) ?-spectrometry with detectors having 55% and 38.5% relative efficiencies. the results showed that the radioactivity concentration ranged from 9.91 ± 0.11 to 4479.95 ± 0.15 bq.kg-1 for 238u, from 5.95 ± 0.14 to 389.72 ± 0.10 bq.kg-1 for 232th, ?mda to 8.89 ± 0.13 bq.kg-1 for 137cs and from 123.18 ± 0.27 to 5201.42 ± 0.27 bq.kg-1 for 40k in soil samples. the calculated internal and external hazard indices were more than 1 in some sites which showed a high dose for this area. these results could be used as a database in this area because it might be used as a nuclear waste site in the future.
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کلیدواژه
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Radioactivity Concentration ,Gamma Spectrometry ,Soil ,Anarak-Khour
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آدرس
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اصفهان, گروه فیزیک دانشکده علوم دانشگاه اصفهان, ایران, اصفهان, گروه فیزیک دانشکده علوم دانشگاه اصفهان, ایران, اصفهان, گروه مهندسی هسته ای دانشکده علوم پیشرفته و فن آوری دانشگاه اصفهان, ایران, اصفهان, گروه علوم زمین شناسی دانشکده علوم دانشگاه اصفهان, ایران
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Authors
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