Abstract: The aim of this study is to determine the radioactivity content of different types for building materials. Twenty four samples, from both local and foreign product were collected and measured using gamma spectrometry system. The activity concentrations have been determined for radium (226Ra), thorium (232Th) and potassium (4OK) in each sample. The samples were crushed and dried in controlled furnace for around twenty four hours, and then stored for four weeks in plastic Marinelli beakers. From the measured gamma-ray spectra, activity concentrations of marble building materials 238U (0.72– 43.2Bq/kg), 232Th (0.20 –33.10 Bq/kg), 226Ra (0.43–33.1 Bq/kg) and 40K (0.70–897.2 Bq/kg) for granite 238U (0.04–315.3 Bq/kg), 232Th (0.02–186.1 Bq/kg), 226Ra (0.03–147.2 Bq/kg) and 40K (0.30 – 1482.6 Bq/kg) The results are compared with the published data of other countries and with the world average limits. It is concluded that the measured radioactivity of building materials are within acceptable levels and does not poses any risk from radiation protection point of view. The results indicated that all the samples collected used as building materials in Alkharj area are safe in general for the radioactivity levels.
Keywords: Radioactivity concentration, building materials, Radium Equivalent, Radiation Hazard, Annual dose.
Title: Study of Natural Radioactivity for Some Building materials used in Al Kharj Area
Author: Ismael. A. Wadi, Mubarak Dirar, Ahmed Elhassan, Wasil .A.Abdalla
International Journal of Mathematics and Physical Sciences Research
ISSN 2348-5736 (Online)
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