Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1882949 | Radiation Physics and Chemistry | 2010 | 8 Pages |
Abstract
The aim of this study was to identify gamma self-absorption correction factors for different types of Egyptian Mediterranean coastal sediments. Self-absorption corrections based on direct transmission through different thicknesses of the most dominant sediment species have been tested against point sources with gamma-ray energies of 241Am, 137Cs and 60Co with 2% uncertainties. Black sand samples from the Rashid branch of the Nile River quantitatively absorbed the low energy of 241Am through a thickness of 5Â cm. In decreasing order of gamma energy self-absorption of 241Am, the samples under investigation ranked black sand, Matrouh sand, Sidi Gaber sand, shells, Salloum sand, and clay. Empirical self-absorption correction formulas were also deduced. Chemical analyses such as pH, CaCO3, total dissolved solids, Ca2+, Mg2+, CO32â, HCO3â and total Fe2+ have been carried out for the sediments. The relationships between self absorption corrections and the other chemical parameters of the sediments were also examined.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
A. El-Gamal, M. Rashad, Z. Ghatass,