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Radiation Protection Dosimetry Advance Access originally published online on October 29, 2007
Radiation Protection Dosimetry 2008 129(4):391-396; doi:10.1093/rpd/ncm454
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© The Author 2007. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Radiological significance of cement used in building construction in Turkey

S. Turhan1 and G. Gürbüz2,*

1 Sarayköy Nuclear Research and Training Center, Istanbul Road 30 km., 06983 Saray, Ankara, Turkey
2 Turkish Cement Manufacturers' Association, Eskisehir Road 9 km., 06800 Ankara, Turkey

* Corresponding author: ggurbuz57{at}gmail.com

Received July 2, 2007, amended September 11, 2007, accepted September 29, 2007

The activity concentration of 226Ra, 232Th and 40K in seven cement types from different factories and grinding plants were measured using a gamma ray spectrometry with HPGe detector. The average activity concentrations observed in the studied cement samples (all from 141 samples) were 40.0 ± 27.1, 28.0 ± 20.9 and 248.3 ± 95.0 Bq kg–1 for 226Ra, 232Th and 40K, respectively. The radium equivalent activity (Raeq), the representative level index, the indoor absorbed dose rate and the corresponding annual effective dose were estimated for the potential radiological hazard of the cement. The Raeq values were compared with the corresponding values for cement of different countries. The mean indoor absorbed dose rate (87.4 ± 48.5 nGy h–1) is slightly higher than the population-weighted average of 84 nGy h–1, whereas the corresponding effective dose rate (0.4 ± 0.2 mSv y–1) is lower than the dose criterion of 1 mSv y–1. The obtained results indicate no significant radiological hazards arise from using Turkish cement in building construction.


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