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Terrestrial gamma radiation dose rates and radiological mapping of Terengganu state, Malaysia

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Abstract

Measurement of terrestrial gamma radiation dose (TGRD) rates in Terengganu state, Malaysia was carried out from 145 different locations using NaI[Tl] micro roentgen survey meter. The measured TGRD rates ranged from 35 to 340 nGy h−1 with mean value of 150 nGy h−1. The annual effective dose to population was found to be 0.92 mSv y−1. The data obtained were used in constructing the gamma isodose map using ArcGis 9.3 which shows the distribution of TGRD rates across the state.

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Acknowledgments

This project is funded by the Atomic Energy Licensing Board (AELB), Ministry of Science, Technology and Innovation, Malaysia under project title: PEMETAAN ISODOS SINARAN GAMA DATARAN, SEMENANJUNG Malaysia, which involved Lee, M.H., Heryanshah, A., Wagiran, H., and Said, M.N. The consultancy was managed by GITM Sdn Bhd. The authors would like to thank the Ministry of Higher Education Malaysia (MOHE) and Universiti Teknologi Malaysia (UTM) for support and funding under UTM Research University Grant; QJ130000.2526.03H67.

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Garba, N.N., Ramli, A.T., Saleh, M.A. et al. Terrestrial gamma radiation dose rates and radiological mapping of Terengganu state, Malaysia. J Radioanal Nucl Chem 303, 1785–1792 (2015). https://doi.org/10.1007/s10967-014-3818-2

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  • DOI: https://doi.org/10.1007/s10967-014-3818-2

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