فهرس المقالات energy peak efficiency حرية الوصول المقاله صفحة الملخص نص كامل 1 - Calculation of full-energy peak efficiency of NaI (Tl) detectors by new analytical approach for parallelepiped sources 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 10.1186/2251-7235-7-52 حرية الوصول المقاله صفحة الملخص نص كامل 2 - A study of the validity of the efficiency transfer method to calculate the peak efficiency using γ-ray detectors at extremely large distances Ahmed M. El-Khatib Mohamed S. Badawi Mohamed A. Elzaher Abouzeid A. Thabet 10.1007/s40094-014-0120-1
