Evaluation of Natural Radioactivity and its Radiation Hazards in Some Building and Decorative Materials in Iraq

被引:0
|
作者
Abdellah, W. M. [1 ]
Mansour, N. A. [2 ]
Diab, H. M. [1 ]
Hassan, N. M. [2 ]
Kasem, A. [2 ]
Ibrahim, Mona. H. [2 ]
机构
[1] Nucl & Radiol Regulatory Author, Dept Radiat Protect, Cairo, Egypt
[2] Zagazig Univ, Fac Sci, Dept Phys, Zagazig, Egypt
来源
关键词
Water; Spectrometry; Gamma; Building; Materials; IRAQ;
D O I
暂无
中图分类号
TL [原子能技术]; O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
Twenty-nine samples of different types of building materials such as bricks, cement, ceramic, granite, gravel, marble, paint, plaster, sand and soil were analyzed by a gamma spectrometer based on HPGe detector. The total average contents of Ra-226, Th-232, and K-40 for all the building samples are 35.26 Bq kg(-1), 26.99 Bq kg(-1), and 321.19 Bq kg(-1) respectively. The estimated radium equivalent activities (Ra-eq), representative index (I-gamma), absorbed gamma-dose rate, external and internal hazard indices and the annual effective dose equivalent (AEDE) are lower than the recommended safe limit 1 mSy(-1). The results indicated that all the building materials in Iraq are safe except the materials that used as decorative materials that have to be regulated.
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页码:39 / 45
页数:7
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