Study on the variation of indoor gamma radiation in the Dhaka district.
- 1 June 2001
- journal article
- research article
- Published by Oxford University Press (OUP) in Radiation Protection Dosimetry
- Vol. 95 (4) , 365-369
- https://doi.org/10.1093/oxfordjournals.rpd.a006562
Abstract
Monthly indoor gamma dose rates in 15 houses in the Dhaka district were measured for a period of a year using lithium fluoride (LiF) thermoluminescence dosemeters (TLD-100). The indoor gamma dose rate was found to vary between residences and with the age of buildings. A statistical analysis between indoor gamma dose rate and meteorological parameters, namely, teperature, rain fall, relative hamidity and atmospheric pressure was performed. The correlation between the measured gamma dose rate and meteorological parameters indicates that meteorological parameters influence the indoor gamma dose rate. It is proposed, however, that the ventilation rates of the houses should be considered.Keywords
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