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Radiation Protection Dosimetry Advance Access originally published online on June 26, 2007
Radiation Protection Dosimetry 2008 128(2):213-216; doi:10.1093/rpd/ncm327
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© The Author 2007. Published by Oxford University Press. All rights reserved
The online version of this article has been published under an open access model. Users are entitled to use, reproduce, disseminate, or display the open access version of this article for non-commercial purposes provided that: the original authorship is properly and fully attributed; the Journal and Oxford University Press are attributed as the original place of publication with the correct citation details given; if an article is subsequently reproduced or disseminated not in its entirety but only in part or as a derivative work this must be clearly indicated. For commercial re-use, please contact journals.permissions@oxfordjournals.org

Determination of uranium, thorium and potassium activity concentrations in soil cores in Araba valley, Jordan

M. Abusini1,*, K. Al-ayasreh1 and J. Al-Jundi2

1 Department of Physics, Al-albayt University, PO Box 928125, Al-Mafraq, Jordan
2 Department of Physics, The Hashemite University, Zarqa, Jordan

* Corresponding author: abusini{at}aabu.edu.jo

Received February 28, 2007, amended May 8, 2007, accepted May 19, 2007

Soil samples were collected from six different locations in Araba valley, situated between Aqaba port and Dead sea. The samples have been analysed by using gamma-ray spectrometry. From the measured gamma-ray spectra, activity concentrations are determined for 238U, 232Th and 40K. The mean activity concentration for 238U, 232Th and 40K was found to be in the range 19 ± 1.4 to 38.7 ± 3, 14.3 ± 0.8 to 35 ± 3.2 and 94 ± 18.9 to 762 ± 47.4 Bq kg–1, respectively. These results indicate that the mean concentrations of 238U, 232Th and 40K in the populated Araba valley are lower than those in other populated areas. On the other hand, the concentrations of the major oxides (Al2O3, SiO2, K2O, CaO and Fe2O3) in the samples were determined using wavelength dispersive X-ray fluorescence. High potassium and iron content in some samples might be attributed to the active faults, which refer to the Dead sea transform fault.


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