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Measurement of Environmental External Gamma Radiation Dose Rate Outside the Dwellings of Southern Coastal Odisha, Eastern India


Affiliations
1 Department of Geology and Geophysics, Indian Institute of Technology, Kharagpur 721 302, India
2 Research Reactor Institute, Kyoto University, Kumatori-cho, Sennan-gun, Osaka 590-04, Japan
 

External gamma dose rate measurement using thermoluminescent dosimeter has been performed along the southern coast of Odisha, eastern India. A total of nine villages from the three sectors, viz. Gopalpur, Chhatrapur and Rushikulya have been selected for the study. The average external gamma dose to people residing in the three sectors is 3.77, 4.47 and 3.57 mSv year-1 respectively, which is ~3-4 times the international limit of 1 mSv year-1. These values are high compared to other high background radiation areas like Tamil Nadu along the east coast of India, but are comparable to the high radiation areas in Kerala, along the west coast of India.

Keywords

Coastal Dwellings, Eastern Indian Beach Placer, External Gamma Dose, Natural Radioactive Hazard, Thermoluminescent Dosimeter.
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  • Measurement of Environmental External Gamma Radiation Dose Rate Outside the Dwellings of Southern Coastal Odisha, Eastern India

Abstract Views: 296  |  PDF Views: 127

Authors

N. Sulekha Rao
Department of Geology and Geophysics, Indian Institute of Technology, Kharagpur 721 302, India
Kajori Parial
Department of Geology and Geophysics, Indian Institute of Technology, Kharagpur 721 302, India
Hiroaki Koide
Research Reactor Institute, Kyoto University, Kumatori-cho, Sennan-gun, Osaka 590-04, Japan
D. Sengupta
Department of Geology and Geophysics, Indian Institute of Technology, Kharagpur 721 302, India

Abstract


External gamma dose rate measurement using thermoluminescent dosimeter has been performed along the southern coast of Odisha, eastern India. A total of nine villages from the three sectors, viz. Gopalpur, Chhatrapur and Rushikulya have been selected for the study. The average external gamma dose to people residing in the three sectors is 3.77, 4.47 and 3.57 mSv year-1 respectively, which is ~3-4 times the international limit of 1 mSv year-1. These values are high compared to other high background radiation areas like Tamil Nadu along the east coast of India, but are comparable to the high radiation areas in Kerala, along the west coast of India.

Keywords


Coastal Dwellings, Eastern Indian Beach Placer, External Gamma Dose, Natural Radioactive Hazard, Thermoluminescent Dosimeter.



DOI: https://doi.org/10.18520/cs%2Fv109%2Fi3%2F600-603