Experimental verification of gamma-efficiency calculations for scintillation detectors in ANGLE 4 software
| Autor: | I Slobodan Jovanovic, N. Mihaljević, Mona M. Gouda, I Mahmoud Abbas, D Aleksandar Dlabac, M Ahmed El-Khatib, S Mohamed Badawi, Abouzeid A. Thabet |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Physics
experimental verification Scintillation Discretization business.industry Physics::Instrumentation and Detectors Detector Ranging scintillation detector ANGLE software Scintillator Semiconductor detector Software Optics Nuclear Energy and Engineering lcsh:QC770-798 lcsh:Nuclear and particle physics. Atomic energy. Radioactivity Safety Risk Reliability and Quality business Energy (signal processing) gamma spectrometry efficiency calculation |
| Zdroj: | Nuclear Technology and Radiation Protection, Vol 30, Iss 1, Pp 35-46 (2015) |
| ISSN: | 1451-3994 |
| Popis: | ANGLE software for semiconductor detector efficiency calculations - long existing and widely accepted tool in quantitative gamma spectrometry - has been recently extended to scintillation NaI detectors. The extension features in the latest edition (ANGLE 4) and it is briefly outlined. Discretization of reference efficiency curve, meaning possibility of using ANGLE 4 for particular gamma energies without constructing the complete reference efficiency curve, is particularly emphasized. This yields both in enhanced practicality and higher accuracy, while reducing the potential for systematic errors. The present work is primarily focussed on experimental verification of ANGLE 4 for NaI detectors. Two detectors (2 ´ 2 and 3 x 3 inches) were employed in the experiment. Commercially calibrated gamma sources (in the forms of quasi point and cylinder) and homemade solutions (diluted from calibrated ones) were measured at various distances from the detector(s), ranging 0 cm to 50 cm. Energy range observed was 59 keV to 1408 keV. Versatility of counting conditions, in terms of detectors and sources used, gamma energies observed, source detector separations, etc., was aimed at creating as large experimental evidence as possible for verification purposes. Experimentally obtained efficiencies are compared with those calculated by ANGLE 4. Very good agreement is obtained - well within the experimental uncertainties - thus proving the reliability of the software. |
| Databáze: | OpenAIRE |
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