Assessment of background gamma radiation levels using airborne gamma ray spectrometer data over uranium deposits, Cuddapah Basin, India - A comparative study of dose rates estimated by AGRS and PGRS

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• 作者：D. Srinivas ; V. Ramesh Babu ; ^{rameshbabuveldi@gmail.com} ; I. Patra ; Shailesh Tripathi ; M.S. Ramayya ; A.K. Chaturvedi
• 关键词：Gamma radiation ; Dose rate ; Airborne gamma ray spectrometry ; Portable gamma ray spectrometry ; Uranium deposits
• 刊名：Journal of Environmental Radioactivity
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：167
• 期：Complete
• 页码：1-12
• 全文大小：5119 K
• 卷排序：167

文摘

Present work establishes a baseline data to assess any changes in radiation levels due to mining and milling activities. Estimated average absorbed dose rates in the air due to terrestrial radio-elements over the known deposits using AGRS data. Validated the dose rates estimated from the AGRS data utilizing the ground PGRS data. Average annual dose rates for Lambapur-Peddagattu, Chitrial, Koppunuru deposits are 130 nGy/hr, 186 nGy/hr, 63 nGy/hr. Annual effective dose rates computed for these deposits are much lower than the recommended limit.