An approach to evaluate the efficiency of γ-ray detectors to determine the radioactivity in environmental samples

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Mohamed. S. Badawi, Ahmed. M. El-Khatib, Samah. M. Diab, Sherif. S. Nafee and Ekram. A. El-Mallah. An approach to evaluate the efficiency of γ-ray detectors to determine the radioactivity in environmental samples[J]. Chinese Physics C, 2014, 38(6): 066203. doi: 10.1088/1674-1137/38/6/066203
Mohamed. S. Badawi, Ahmed. M. El-Khatib, Samah. M. Diab, Sherif. S. Nafee and Ekram. A. El-Mallah. An approach to evaluate the efficiency of γ-ray detectors to determine the radioactivity in environmental samples[J]. Chinese Physics C, 2014, 38(6): 066203.  doi: 10.1088/1674-1137/38/6/066203 shu
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Received: 2013-07-30
Revised: 1900-01-01
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An approach to evaluate the efficiency of γ-ray detectors to determine the radioactivity in environmental samples

    Corresponding author: Mohamed. S. Badawi,

Abstract: This work provides an approach to determine the efficiency of γ-ray detectors with a good accuracy in order to determine the concentrations of either naturally occurring or artificially prepared radionuclides. This approach is based on the efficiency transfer formula (ET), the effective solid angles, the self- absorptions of the source matrix, the attenuation by the source container and the detector housing materials on the detector efficiency. The experimental calibration process was done using radioactive (Cylindrical & Marinelli) sources, in different dimensions, that contain aqueous 152Eu radionuclide. The comparison point to a fine agreement between the experimental measured and calculated efficiencies for the (NaI & HPGe) detectors using volumetric radioactive sources.

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