Assessment of natural radioactivity in soil samples of Dez river sides – Khouzestan province

Iranian Journal of Physics Research

卷:14

Mostajaboddavati¹  Nasri Nasrabadi¹  Hajialiani¹ 

[1] Department of Nuclear Engineering, Faculty of Advanced Sciences & Technologies, University of Isfahan, Isfahan, Iran ;

关键词: Dez river;    Khuzestan;    gamma-ray spectroscopy;    natural radioactive materials;    specific activity;    soil;   

DOI  :  

来源: DOAJ

【 摘 要 】

Geographical features of each region of the world affect the activity concentration of natural radionuclides such as uranium, thorium and potassium. In this study, 26 soil samples were randomly collected from sides of the Dez River and transferred to the Laboratory for preparation. Activity concentration of natural radioactive materials was measured using p-type HPGe detector with a 38% relative efficiency. The results indicated that radioactivity concentration of226Ra, 232Th and 40K in soil samples varied over a range of 15.97 - 32.87Bqkg-1, 8.04 - 33. 85 Bqkg-1 and 106.82 - 471.35 Bqkg-1, respectively while their mean values were 25.21, 19.71 and 289.57Bqkg-1 in that order. Statistical results at 5% internal error showed that the mean values of radionuclides' activity concentrations were lower than their defined ones--the average values of the world and Iran. The results of radiological parameters predicted no radioactivity danger in the region.

【 授权许可】

Unknown