title: Spatial distribution of U isotopes in sea-water sediments, Red Sea, Egypt.
abstract: Isotopes of uranium in the sea-water sediments collected from two different areas (El Hamraween harbour and Ras El Behar) on the Egyptian coast of the red sea have been studied using radiochemical separation procedures and alpha-particle spectrometry. Activity concentrations of (238)U, (235)U, (234)U were calculated. The activities observed indicated enhanced radioactivity levels in sea-water sediments of El Hamraween harbour area due to the activities of phosphate shipment operation. Secular equilibrium between (234)U and (238)U was found in the analyzed samples. The average activity ratio of (235)U/(238)U was close to the value 0.046 for uranium in nature.
authors.affiliation: Physics Department, Qena faculty of Science, South Valley University, Egypt. ksh272@yahoo.com
authors.forename: K
authors.initials: K
authors.lastname: Salahel Din
authors.forename: P
authors.initials: P
authors.lastname: Vesterbacka
mesh_terms: D000512:Alpha Particles; D004534:Egypt; D005843:Geography; D019015:Geologic Sediments / Q000737:chemistry*; D019156:Indian Ocean; D011834:Radiation Monitoring; D012623:Seawater / Q000737:chemistry*; D013057:Spectrum Analysis; D014501:Uranium / Q000032:analysis*; D014875:Water Pollutants, Radioactive / Q000032:analysis*
chemical_list: D014875:Water Pollutants, Radioactive; D014501:Uranium