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Radiological assessment of natural radionuclide contents in soils from Omala, Kogi State, Nigeria.

Usikalu, M.R. and Rabiu, A. B and Solomon , J.A and Oyeyemi , Kehinde D. and Achuka, J.A and Olawole, O. F. (2015) Radiological assessment of natural radionuclide contents in soils from Omala, Kogi State, Nigeria. In: IEEE: Space Science and Communication (IconSpace), International Conference , 10-12 August, Langkawi Lagoon Resort, Langkawi, Malaysia.

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Abstract

High purity germanium detector (HPGe) was employed to assess radionuclide contents of 238U, 40K and 232Th in soils obtained from Omala, Kogi State, Nigeria. The activities measured vary from 9.0 to 82.2, 12.3 to 114.86 and below detector limit (BDL) and 349.0 Bq Kg-1 in 238U, 232Th and 40K respectively. Highest activities for the three radionuclides were consistently obtained from soil samples got from Igaliwu. The measured activities were engaged to estimate the absorbed dose, annual outdoor effective dose and gamma index. It was observed from the absorbed dose, annual equivalent dose and the gamma index estimated that soils from Igaliwu, Ijeke-ogene and Bagana were found to be higher than the recommended safe limit for normal background. This suggests that those living or using the soil for construction purposes are exposed to high radiation burden from natural radionuclides.

Item Type: Conference or Workshop Item (Paper)
Subjects: Q Science > Q Science (General)
Q Science > QE Geology
R Medicine > RA Public aspects of medicine
Divisions: Faculty of Engineering, Science and Mathematics > School of Physics
Depositing User: Mr. K. D. Oyeyemi
Date Deposited: 25 Feb 2016 14:21
Last Modified: 26 Feb 2016 11:01
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/6160

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