Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2009, Vol. 20 ›› Issue (2): 99-105 doi: 10.13538/j.1001-8042/nst.20.99-105

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

SHABAN Harb1,2 ROLF Michell   

  1. 1 Center for Radiation Protection and Radioecology, Hanover University (ZSR), Herrenhaeuser Str.2, D-30419 Hanover, Germany 2 Physics Department, Faculty of Science, South Valley University, Qena 83523, Egypt
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SHABAN Harb, ROLF Michel. Uptake of U- and Th-series radionuclides by cereal crops in Upper Egypt.Nuclear Science and Techniques, 2009, 20(2): 99-105     doi: 10.13538/j.1001-8042/nst.20.99-105

Abstract:

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.

Key words: Cereal crops, Gamma spectrometer, HPGe detector, Annual committed effective dose, Age groups