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Manikandan, N. Muguntha,Selvasekarapandian, S.,Sivakumar, R.,Meenakshisundaram, V.,Raghunath, V.M. 대한방사선 방어학회 2001 방사선방어학회지 Vol.26 No.3
The activity concentration of primordial radionuclides i.e., 238U series, 232Th series and 40K, in soil samples collected from Udagamandalam environment, have been measured by employing NaI(Tl) Gamma ray Spectrometer. The absorbed gamma dose rate has also been simultaneously measured by using both Environmental Radiation Dosimeter at each soil sampling location (ambient gamma dose) as well as from the gamma dose derived from the activity concentration of the primordial radionuclides. The results of activity concentration of each radionuclides in soil, absorbed dose rate in air due to soil activity and possible cosmic radiation at each location along with human effective dose equivalent for Udagamandalam environment are presented and discussed.