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Radiation Protection Dosimetry Advance Access published online on May 24, 2005
Radiation Protection Dosimetry, doi:10.1093/rpd/nci300
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© The Author 2005. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oupjournals.org
Received January 5, 2005
Revised March 26, 2005
Accepted April 19, 2005

SCIENTIFIC AND TECHNICAL PAPER

OCCUPATIONAL RADIATION EXPOSURE TO NORMS IN A GOLD MINE

E. O. Darko 1*, G. K. Tetteh 2, and E. H. K. Akaho 3

1 Radiation Protection Institute, GAEC, Box LG 80, Legon, Ghana
2 Department of Physics, University of Ghana, Legon, Ghana
3 Department of Nuclear Engineering, NNRI, GAEC, Box LG 80, Legon, Ghana

* To whom correspondence should be addressed.
E. O. Darko, E-mail: eodarko2002{at}yahoo.co.uk


  Abstract

Preliminary studies have been conducted into the occupational radiation exposure to NORMS from surface and underground mining operations in a gold mine in the Ashanti Region of Ghana. A brief description of the methods and instrumentation is presented. The annual effective dose has been estimated to be 0.26 ± 0.11 mSv for surface mining and 1.83 ± 0.56 mSv for the underground mines using the ICRP dose calculation method. The results obtained are found to be within the allowable limit of 20 mSv per annum for occupational exposure control recommended by the ICRP.


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