Abstracto

Determination of K-40 radionuclide content and the resulting radiation doses in some foodstuffs and drinking water in KSA

Mohammed Al-Dughmah, Fawzzia Qurashy

The activity of K- 40 radionuclide content and the resulting radiation doses in some foodstuff and drinking water in KSA are measured. To the first time, a quantitative study is given here to determine the concentration of the natural potassium in various samples under investigations. High resolution gamma ray spectroscopy was employed. Our standard sample was prepared using pure KCl, thus radiation content of the samples can be estimated directly by relative method. Data for every sample was collected for 7000s. The content of K- 40 in the samples varies from0.50 to 110 Bq/ kg, which produce an equivalent dose up to 85.5 µ Sv/y.