Abstract
Absorbed 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.
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Acknowledgements
This research was supported by the JSPS core-to-core program (Grant Number: JPJSCCB20210008). One of the authors (T.N.) is thankful to the Tokyo Metropolitan Government, Tokyo, Japan for the award of the doctoral fellowship “Tokyo Human Resources Fund for City Diplomacy” at Tokyo Metropolitan University. T.N. is also thankful to the Institute for Radiological Sciences, National Institutes for Quantum Science and Technology (QST) Chiba, Japan for the award of the QST Research Assistant.
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Inoue, K., Natarajan, T., Sahoo, S.K. et al. Car-borne survey to construct the distribution of absorbed dose rate in air in the Tehri Garhwal region, India. J Radioanal Nucl Chem (2023). https://doi.org/10.1007/s10967-023-09217-4
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DOI: https://doi.org/10.1007/s10967-023-09217-4