Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1728088 | Annals of Nuclear Energy | 2015 | 7 Pages |
Abstract
Monitoring of radiological parameters in underground uranium mines is essential to maintain the radiation levels within safe limits. In this study, the radiological parameters such as external gamma emitted from ore body, long-lived alpha activity associated with ore dust and radon concentration in an operating underground uranium mine located at Jaduguda, India were measured using different equipments such as micro-R radiation survey meter, personal air sampler and scintillation cell. The geometric mean values of external gamma radiation level, long-lived alpha activity, radon activity concentration and equilibrium equivalent radon (EER) concentration were found to be 2.39 μGy hâ1, 16.84 mBq mâ3, 872.89 Bq mâ3 and 436.44 Bq mâ3 respectively with their geometric standard deviations of 1.56, 3.21, 1.58 and 1.58. The total radiation dose received by the miners estimated from the radiological parameters was found to be well below the prescribed limit of 20 mSv yâ1 recommended by International Commission on Radiation Protection (ICRP), and hence, it may not pose significant health hazards to the Jaduguda miners.
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Authors
Durga Charan Panigrahi, Devi Prasad Mishra, Patitapaban Sahu, Subhas Chandra Bhowmik,