Uptake of U- and Th-series radionuclides by cereal crops in Upper Egypt

LOW ENERGY ACCELERATOR, RAY TECHNOLOGY AND APPLICATIONS

Uptake of U- and Th-series radionuclides by cereal crops in Upper Egypt

SHABAN Harb，

ROLF Michel

Nuclear Science and Techniques

Vol.20, No.2

pp.99-105

Published in print 20 Apr 2009

DOI：10.13538/j.1001-8042/nst.20.99-105

37300

The main aim of this study is to determine the activity concentrations of uranium series and thorium series radionuclide in crops cultivated in Upper Egypt. Fifteen types of cereal crops were collected from local markets and analyzed by γ-ray spectrometry. The mean activity concentrations of the natural radionuclides ²³⁸U, ²²⁶Ra and ²³²Th were 0.67, 1.27 and 0.56 Bq·kg^-1, respectively. The annual effective doses from these radionuclides were estimated for different age groups.

Cereal cropsGamma spectrometerHPGe detectorAnnual committed effective doseAge groups

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