title: INAA and DNAA for uranium determination in geological samples from Egypt.
abstract: Uranium isotopes found in soil, rock, water, plants, air, etc., contribute to the natural radiation exposure of the population. U concentrations in some Egyptian environmental samples like Toshki soil, Aswan iron-ore, and phosphate samples from El-Sibayia in the Nile Valley and El-Quseir in the Red Sea coast were determined using instrumental neutron activation analysis (INAA) and delayed neutron activation analysis (DNAA) in the Mainz TRIGA research reactor. The results showed that the phosphate rocks are rich natural sources of uranium among the other minerals forming the earth crust.
authors.affiliation: Physics Department, Faculty of Science, Al-Azher University, Assuit Branch, 71542 Assuit, Egypt. Atef_Eltaher@hotmail.com
authors.forename: A
authors.initials: A
authors.lastname: El-Taher
mesh_terms: D004534:Egypt; D005844:Geology; D009501:Neutron Activation Analysis; D010710:Phosphates / Q000032:analysis; D012990:Soil Pollutants, Radioactive / Q000032:analysis; D014501:Uranium / Q000032:analysis*
chemical_list: D010710:Phosphates; D012990:Soil Pollutants, Radioactive; D014501:Uranium