Title of article
Radioactivity and radiation hazard assessment of Cauvery River, Tamilnadu, India
Author/Authors
Murugesan, S. Sathyabama University - Department of Physics, India , Mullainathan, S. A.V.C College of Engineering - Department of Physics, India , Ramasamy, V. Annamalai University - Department of Physics, India , Meenakshisundaram, V. Indira Gandhi Centre for Atomic Research - Health and Safety Division, India
From page
211
To page
222
Abstract
Background: Natural radiation is constantly present in the environment and is emitted from a variety of natural and artificial sources. It affects human body and environment. Materials and Methods: The activity concentrations of 238U, 232Th and 40K have been determined by Gamma ray spectrometer with an HPGe detector in sediments of Cauvery River, Tamilnadu, India. Results: The absorbed dose rate, radium equivalent concentration, external (Hex) and internal (Hin) hazardous indices are calculated from criteria formula and compared with the international recommended limits. The radioactive heat production rate and activity concentration index are also calculated. The observed dose rate measurements from ERDM (Environmental Radiation Dosi Meter) at 1m above the ground level at each site of the both rivers are measured and correlated with calculated absorbed dose rate. Conclusion: From the various parameters and correlation between them, the Cauvery River does not pose a radiological hazard except the site no. 21, 22, 23, 30, 31 and 35.
Keywords
Sediments , radioactivity , absorbed dose rate , hazardous indices , RHP , activity concentration index.
Journal title
International Journal of Radiation Research
Journal title
International Journal of Radiation Research
Record number
2666413
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