The Determination of the Total Efficiency for NaI(Tl) Detector by GATE Simulation

Abstract

In this study the total efficiency of the NaI(Tl) detector have been calculated by using Geant4 based GATE simulation program. The simulation was performed using point and disc isotropic gamma-ray sources at various distance between source and detector in the photon energy range 50-3000 keV. Results were compared with different analytical and Monte Carlo calculations obtained in the time of the periods 1958-2018. The calculated and simulated data indicated good agreement with finding more sensitive GATE simulation result in the lower energy range from 50 keV to 150 keV.

Radioactive Source-Detector System: Design and Monte Carlo Opinion

“…To demonstrate the effect of the source dimensions, the simulation was carried out for a radiant source with a disk shape. The results were compared with the published results of the international code Geant4 based GATE simulation program 29 , which clearly showed quite well congruence, see Fig. 9.…”

Utilization of High-Power Leds as Non-Invasive KV Meter Detectors in Collimation of Lighting

“…The results of the detector module under study were still much larger in error than the detectors from research using PMT with solar cell sensors and NaI (TI), [24], [28]. In this case, the drawback of the module that the author developed is that the problem with the detector itself which is less stable and linear.…”

“…In another study entitled PMT (Effect of High Voltage Variations in Solar Tubes) on the Output Amplitude of the NaI (T1) detector, a tool to measure photon radiation has been made using a two-channel analyzer (MCA). The results showed that there was a linear correlation between high voltage and amplitude changes, so reducing the high voltage interval will cause changes in amplitude [24]- [28]. A similar study entitled investigating factors affecting the quality assurance of x-ray surface radiation therapy machines was further done as well.…”