List of articles byMohamed S Badawi

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List of Articles Mohamed S Badawi

Article

1 - Calculation of full-energy peak efficiency of NaI (Tl) detectors by new analytical approach for parallelepiped sources
10.1186/2251-7235-7-52

Ahmed M El-Khatib Mohamed S Badawi Mona M Gouda Slobodan I Jovanovic Aleksandar D Dlabac Nikola N Mihaljevic Sherif S Nafee Ekram A El-Mallah

Journal of Theoretical and Applied Physics , Issue 1 , Year , Winter 2014

AbstractA new analytical approach is presented for the calculation of full-energy peak (FEP) efficiency of NaI (Tl) detectors. The self-attenuation of the parallelepiped source matrix, the attenuation by the source container, and the detector housing materials were cons More

AbstractA new analytical approach is presented for the calculation of full-energy peak (FEP) efficiency of NaI (Tl) detectors. The self-attenuation of the parallelepiped source matrix, the attenuation by the source container, and the detector housing materials were considered in the mathematical treatment. The efficiency values calculated using the presently suggested analytical approach are compared with those measured values obtained by two different sizes of NaI (Tl) detectors. The calculated and the measured full-energy peak efficiency values were in a good agreement. Manuscript profile

Article

2 - A study of the validity of the efficiency transfer method to calculate the peak efficiency using γ-ray detectors at extremely large distances
10.1007/s40094-014-0120-1

Ahmed M. El-Khatib Mohamed S. Badawi Mohamed A. Elzaher Abouzeid A. Thabet

Journal of Theoretical and Applied Physics , Issue 1 , Year , Spring 2014

AbstractThe full-energy peak efficiency (FEPE) curves of the (2″ × 2″ and 3″ × 3″) NaI (Tl) detectors were measured at seven different axial positions from their surfaces. The calibration process was done using radioactive point sources, which produce a wide energy rang More

AbstractThe full-energy peak efficiency (FEPE) curves of the (2″ × 2″ and 3″ × 3″) NaI (Tl) detectors were measured at seven different axial positions from their surfaces. The calibration process was done using radioactive point sources, which produce a wide energy range from 59.53 up to 1,408.01 keV. This work has been undertaken to explain the effects of source energy and sourcE−to-detector distance on the detector efficiency calculations. The study provides an empirical formula to calculate FEPE based on the efficiency transfer method for different detectors using the effective solid angle ratio at very large distances and for higher energies. A remarkable agreement between the measured and calculated efficiencies for the detectors at the sourcE−to-detector distances Manuscript profile

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