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Investigation of Natural Radioactivity levels in Soil Samples from North Kordofan State, Sudan

Author Affiliations

  • 1 Physics Department, Faculty of Education, University of Blue Nile, SUDAN
  • 2 Deparment of Physics, Taibah University, AL-Madinah Al-Munawarah, Kingdom of Saudi Arabia, SAUDIA ARABIA
  • 3 Department of physic, Faculty of Sciences, Sudan University of Science and Technology, SUDAN
  • 4 Department of Nuclear Sciences and Applications, Radiometric Laboratory, International Atomic Energy Agency (IAEA), MONACO
  • 5 Committee on Radiation and Environmental Pollution Protection, Al Imam Mohammad IbnSaud Islamic University, Riyadh, Kingdom of Saudi Arabia, SAUDIARABIA
  • 6Sudan Atomic Energy Commission, PO Box 3001, Khartoum, SUDAN

Res. J. Physical Sci., Volume 3, Issue (7), Pages 1-7, September,4 (2015)


The aim of this study is to assess of the natural radioactivity level in the soil samples around North Kordofan State. The radioactivity concentration of 238U, 232Th, 40K and 137Cshave been determined using γ-ray spectrometry NaI (Tl) detector moreover, the absorbed dose rates and annual effective dose were calculated. The average value of 238U, 232Th, 40K and 137Cswere found to be 22.83, 25.11, 284.31and 0.28Bq.k-1 respectively. The obtained results were found to be lower than UNSCEAR reported data. The absorbed dose rates and annual effective dose were determined and found to be in range of 25 to 29.61 nGy h-1 and 30to 41μSvy-1 respectively. The overall annual effective dose were lower than allowable limit set by ICRP 1μSvy-1.


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