Assessment Of Radiological Consequence Of Radioactivity In Monazite Beach Sand In South West Coastal Region In Southern India
| Autor: | P.J. Jojo, S. Monica, A.K. Visnu Prasad, S.R. Soniya |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Hydrology Radionuclide Measurement method chemistry.chemical_element 02 engineering and technology Radiation hazard 021001 nanoscience & nanotechnology 01 natural sciences Effective dose (radiation) Radium chemistry Radiological weapon Monazite 0103 physical sciences Environmental science Absorbed dose rate 0210 nano-technology |
| Zdroj: | Materials Today: Proceedings. 16:784-791 |
| ISSN: | 2214-7853 |
| DOI: | 10.1016/j.matpr.2019.05.159 |
| Popis: | The natural radionuclide ( 226Ra, 232Th and 40K) contents of sand samples at various locations in Sakthikulangara area in the south west coastal region of Kerala state have been determined using NaI(Tl) based gamma spectrometric measurement method and radiation hazard indices in the study area are evaluated. The specific activities of the radionuclides were found to vary from below detectable level to 32.38 BqKg-1, 34.77 BqKg-1 to 229.30 BqKg-1 and 20.76 BqKg-1 to 88.39 BqKg-1, respectively for 226Ra, 232Th and 40K. The radium equivalent activity (Raeq) was quite less than the recommended limit of 370BqKg-1. The radiological parameters such as internal and external hazard indices, absorbed dose rate, indoor and outdoor annual effective dose, alpha index and representative level index were also determined from the estimated value of the specific activity of 226Ra, 232Th and40K. |
| Databáze: | OpenAIRE |
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