NaI(Tl) Dedektörünün GATE Simülasyon Programıyla Toplam Veriminin Belirlenmesi

Bu çalışmada Geant4 tabanlı GATE simulasyon programı kullanılarak NaI(Tl) detektörünün toplam verimi hesaplanmıştır. Simulasyon, 50-3000 keV foton enerji aralığında çeşitli kaynak-detektör uzaklıklarında izotropik nokta ve disk gama ışını kaynağı kullanılarak gerçekleştirilmiştir. Sonuçlar, 1958-2018 periyodu boyunca elde edilen farklı analitik ve Monte Carlo hesaplamaları sonuçları ile karşılaştırılmıştır. Hesaplanan ve GATE simulasyonuyla elde edilen sonuçların birbiriyle uyumlu çıkmasının yanında, bu çalışmada 50 keV ile 150 keV arasındaki düşük enerjideki gamalar için çok daha hassas sonuçlar bulunmuştur.

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

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

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