Gamma-ray spectroscopic analysis of selected samples from Nile River sediments in Upper Egypt

被引：26
|
作者：
Uosif, M. A. M. [1 ]
机构：
[1] AL Azhar Univ, Fac Sci, Dept Phys, Assiut, Egypt
来源：
RADIATION PROTECTION DOSIMETRY | 2007年 / 123卷 / 02期
关键词：
D O I：
10.1093/rpd/ncl103
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Selected sedimentary samples from different locations on the east and west banks of the Nile River in Upper Egypt were analysed by natural radioactivity measurements to detect the presence of radioactive elements. From the analysis of radiations from Ra-226, Th-232 and K-40 isotopes, the samples were found to contain Ra, Th and K in concentrations up to 52 +/- 7.3, 76.2 +/- 6.2 and 351.9 +/- 17.6 Bq kg(-1), respectively. The absorbed dose rate in air was found to be in the range of 9.6-84.8 nGyh(-1). The representative external hazard index values for the corresponding samples were also estimated.
引用
收藏
页码：215 / 220
页数：6
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