Car-borne survey to construct the distribution of absorbed dose rate in air in the Tehri Garhwal region, India

AbstractAbsorbed dose rate in air for the Tehri Garhwal region of Uttarakhand state, India was measured using a vehicle-mounted NaI(Tl) scintillation spectrometer. The average values of absorbed dose rate in air for Jakhana and New Tehri areas in this region were 150 nGy  h−1 and 88 nGy  h−1, respectively, and the respective estimated average external effective doses for the areas were 1.06  mSv y−1 and 0.62  mSv y−1. Higher dose rates observed in the Jakhana area were possibly related to uraninite and sericite which were formed as a result of hydrothermal alteration and found in the area.
Source: Journal of Radioanalytical and Nuclear Chemistry - Category: Nuclear Medicine Source Type: research