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dc.contributor.authorThabayneh, Khalil-
dc.description.abstractThe aim of this investigation was to determine the amount of γ-decay of several building materials used in Egypt, in terms of Bq kg−1, and to calculate the radiological effect caused by this radioactivity. Activity concentrations of 226Ra, 232Th and 40K in 30 samples of manufactured building materials were measured using gamma-spectroscopy system based on high-purity germanium detector with an efficiency of 40 %. The activity concentrations for 226Ra, 232Th, and 40K, from the selected building materials, ranged from (8.15 ± 2.81 to 288.5 ± 17.49 Bq kg−1), (3.59 ± 1.36 to 77.77 ± 15.61 Bq kg−1) and (4.09 ± 4.72 to 1314 ± 15.30 Bq kg−1), respectively. Radium equivalent activities, absorbed dose rate, Excess lifetime cancer risk and the values of hazard indexes were calculated for the measured samples to assess the radiation hazards arising from using those materials in the construction of dwellings. These …en_US
dc.publisherJ. of Radiation Research and Applied Scienceen_US
dc.subjectbuilding materials, Radiumen_US
dc.titleAssessment of natural radiation exposure and radon exhalation rate in various samples of Egyptian building materialsen_US
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