Radiation Protection Dosimetry Advance Access originally published online on March 15, 2008
Radiation Protection Dosimetry 2008 130(2):236-238; doi:10.1093/rpd/ncm501
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Body radioactivity and radiation dose from 40K in Bangladeshi subjects measured with a whole-body counter
1 Health Physics Division, Atomic Energy Centre, 4 Kazi Nazrul Islam Avenue, Ramna, Dhaka-1000, Bangladesh
2 Nuclear Safety and Radiation Control Division, 4 Kazi Nazrul Islam Avenue, Ramna, Dhaka-1000, Bangladesh
3 Radiation Monitoring and Waste Management Laboratory, Institute of Nuclear Science and Technology, Atomic Energy Research Establishment, PO Box 3787, Savar, Dhaka, Bangladesh
4 Department of Physics, Jahangirnagar University, Savar, Dhaka, Bangladesh
* Corresponding author: msrahman74{at}hotmail.com, msrahman1974{at}yahoo.com
Received August 24, 2007, amended November 25, 2007, accepted December 26, 2007
A group of subjects of Bangladeshi adults from both sexes were studied for internal radioactivity and effective dose by measuring the whole-body activity of naturally occurring 40K using a whole-body counter. The mean activity concentration in the whole body and effective dose due to naturally occurring 40K for the average male were found to be 2.0 ± 0.4 Bq·g–1 and 100 ± 26 µSv·y–1, respectively and those for the average female were 1.7 ± 0.3 Bq·g–1 and 100 ± 20 µSv·y–1, respectively. The mean activity concentration in the whole body and effective dose for both sexes were 1.9 ± 0.4 Bq·g–1 and 100 ± 25 µSv·y–1, respectively. The effective dose from 40K for subjects is below the value reported by the UNSCEAR.