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M. C. Lepy, et al., “Intercomparison of Efficiency Transfer Software for Gamma-Ray Spectrometry,” Applied Radiation and Isotopes, Vol. 55, No. 4, 2001, pp. 493-503.

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• TITLE: Determination of Full Energy Peak Efficiency of NaI(Tl) Detector Depending on Efficiency Transfer Principle for Conversion Form Experimental Values

  AUTHORS: Mohamed Abd-Elzaher, Mohamed Salem Badawi, Ahmed El-Khatib, Abouzeid Ahmed Thabet

  KEYWORDS: Full Energy Peak Efficiency; NaI(Tl) Scintillation; Efficiency Transfer

  JOURNAL NAME: World Journal of Nuclear Science and Technology, Vol.2 No.3, July 23, 2012

  ABSTRACT: In this work we calibrated the NaI(Tl) scintillation detectors (5.08 × 5.08 cm2 and 7.62 × 7.62 cm2) and the Full Energy Peak Efficiency (FEPE) for these detectors have been calculated for point sources placed at different positions on the detector axis using the analytical approach of the effective solid angle ratio. This approach is based on the direct mathematical method reported by Selim and Abbas [1,2] and has been used successfully before to calibrate the cylindrical, parallelepiped, and 4π NaI(Tl) detectors by using point, plane and volumetric sources. In addition, the present method is free of some major inconveniences of the conventional methods.