PPerformance Assessment of NaI Detector Spectrometer for Safeguard Measurements | ||||
| Egyptian Journal of Radiation Sciences and Applications | ||||
| Article 7, Volume 33, Issue 1, July 2020, Page 51-57 PDF (960.92 K) | ||||
| Document Type: Review papers | ||||
| DOI: 10.21608/ejrsa.2020.40247.1103 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Rasha El-Tayebany  ; Mohamed Hazzaa; Sameh Sabaan
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| Egyptian Nuclear and Radiological Regulatory Authority (ENRRA), Cairo, Egypt | ||||
| Abstract | ||||
| NUCLEAR Safeguards Measurement Methods are developed by design characteristics as well as performance specifications for several systems of the gamma-ray assay. A NaI(Tl) gamma detector was characterized with respect to count rate performance, detector efficiency, dead time (DT), low-level discriminator, and threshold effects using low, medium, and high-energy radioactive point sources. Spectral data are collected using inorganic scintillation detectors NaI (Tl). Besides, the response functions of the NaI(T1) 2" × 2” detector were determined where detector efficiency and FWHM were measured at diverse sources using energy lines (356.02 keV of 133Ba, 661.7 keV of 137Cs and1173.2 and 1332.5 keV of 60Co) and calculated by using MCNP method. The Gaussian spectra generated by MCNP-5 code were compared with the experimental work. To validate the simulated result, the Gaussian Energy Broadening (GEB) card was used, yielding the best results. When comparing the obtained findings derived from MNCP calculations with the experimental findings, they showed a good agreement in their values. | ||||
| Keywords | ||||
| Dead time (DT); Low- level discriminator (LLD); NaI(Tl) detector Efficiency; Non- destructive assay techniques (NDA) | ||||
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