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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.48 [2010] >
IJPAP Vol.48(07) [July 2010] >
| Title: | Evaluation and analysis of 226Ra, 232Th, 40K and radon exhalation rate in various grey cements |
| Authors: | Varshney, Rati
Mahur, A K
Sonkawade, R G
Suhail, M A
Azam, A
Prasad, R |
| Keywords: | Radon exhalation rate
Gamma ray spectroscopy
Radium equivalent activity
Gamma absorbed dose rate |
| Issue Date: | Jul-2010 |
| Publisher: | CSIR |
| Abstract: | The natural
terrestrial gamma radiation dose rate is an important contribution to the
average dose rate received by the world’s population. Natural radio nuclides in
building material are sources of external and internal radiation exposure in
dwellings. The natural radioactivity and radon exhalation rate of the commonly
used building construction material (grey cements) have been studied. Positive
correlation was found between radium concentration and radon concentration. The
external radiation exposure caused by gamma emitting radionuclide is determined
from obtained values of 226Ra, 232Th and 40K,
using high purity Germanium Detector. The absorbed dose is found to be higher
in the AMB cement. This study presents the results of estimation of 226Ra,
232Th and 40K concentration, gamma absorbed dose rates
and radon exhalation rates of grey cements collected from different manufacturers. |
| Page(s): | 473-477 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.48(07) [July 2010]
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