title: Radioactivity levels of salt for natural sediments in the northwestern desert and local markets in Egypt.
abstract: Thirteen samples of salt collected from different locations of old sediments in the western desert at El-Harra and Ain Giffara, Sitra lake and local markets in Egypt have been investigated. Natural radionuclide contents have been measured by gamma-ray spectrometry employing a shielded HPGe detector. The activities of 238U, 232Th and 40K have been determined in Bq/kg dry weight. The absorbed dose rate of gamma radiation was estimated to be 1.46-16.13 nGy/h. The thorium-to-uranium concentration ratios were also estimated for the samples.
authors.affiliation: Nuclear Physics Laboratory, Faculty of Girls, Ain Shams University, Heliopolis, Cairo, Egypt. samia_elbahi@yahoo.com
authors.forename: S M
authors.initials: SM
authors.lastname: El-Bahi
mesh_terms: D003889:Desert Climate; D004534:Egypt; D019015:Geologic Sediments / Q000032:analysis*; D011197:Potassium Radioisotopes / Q000032:analysis*; D013910:Thorium / Q000032:analysis*; D014501:Uranium / Q000032:analysis*
chemical_list: D011197:Potassium Radioisotopes; D014501:Uranium; D013910:Thorium