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

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

Department of Basic and Applied Science, Faculty of Engineering, Arab Academy for Science, Technology and Maritime Transport, Alexandria, Egypt.
Physics Department, Faculty of Science, Alexandria University, Alexandria, Egypt.

DOI: 10.4236/wjnst.2012.23011                

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.

Keywords

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

Conflicts of Interest

The authors declare no conflicts of interest.

References

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