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Hindi Research Article, J Nucl Ene Sci Power Generat Technol Vol: 6 Issue: 2
Empirical Formulae to Calculate Full-Energy Peak Attenuation Coefficients of Well-Type NaI (Tl) Detectors
| Abbas MI1, El-Bayoumi EM2, Badawi MS1,3*, Thabet AA4, El-Khatib AM1 and Al-Mugren KS5 | |
| 1Physics Department, Faculty of Science, Alexandria University, 21511 Alexandria, Egypt. | |
| 2Physics and Chemistry Department, Faculty of Education, Alexandria University, Alexandria, Egypt. | |
| 3Department of Physics, Faculty of Science, Beirut Arab University, Beirut, Lebanon. | |
| 4Department of Medical Equipment Technology, Faculty of Allied Medical Sciences, Pharos University in Alexandria, Alexandria, Egypt. | |
| 5Physics Department, Faculty of Science, Princess Nourah Bint Abdulrahaman University, 11544-55532 Riyadh, Saudi Arabia. | |
| Corresponding author : Dr. Mohamed Salem Badawi
Department of Physics, Faculty of Science, Beirut Arab University, Beirut, Lebanon Tel: +2-01005154976 E-mail: ms241178@hotmail.com |
|
| Received: February 04, 2017 Accepted: March 08, 2017 Published: March 17, 2017 | |
| Citation: Abbas MI, El-Bayoumi EM, Badawi MS, Thabet AA, El-Khatib AM, et al. (2017) Empirical Formulae to Calculate Full-Energy Peak Attenuation Coefficients of Well-Type NaI (Tl) Detectors. J Nucl Ene Sci Power Generat Technol 6:2.doi: 10.4172/2325-9809.1000171 |
Abstract
NaI (Tl) detectors have been widely used during the recent years based on their response to γ-rays, which is significant mainly for the elemental analysis of neutron-induced prompt γ-rays. The detector functions significantly influence the analysis results, especially the detector efficiency. The present study focused on this problem and has been made of the contribution of the full-energy peak attenuation in the calculation of the detector efficiency. An empirical formula has been derived to calculate the full-energy peak attenuation for 3″×3″ NaI (Tl) well-type detector using isotropic radiating axial point sources. The measured efficiency values are used in this method to find the peak attenuation coefficient for this particular source-to-detector geometry. In addition, the obtaining values were used to calculate the detector full-energy peak efficiency, and compared it with the measured ones. The calculated values of the detector efficiency are found to be in a good agreement with experimental data. This gives indication about the ability to extend the calculated efficiency values to build an efficiency curve as a function of γ-ray energy as not many radioactive sources exist for the standardization process.
