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

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

NaI(Tl), Toplam Verim, Geant4, GATE

Investigation of the Collimator Effect on the 3’’x3’’ NaI(TI) Detector System by the FLUKA code

The efficiency of the 3’’x3’’ NaI(TI) detector and gamma attenuation calculations were investigated under the different collimation parameters. In this purpose, photon beams with 511 and 1332 keV energy were collimated by using Pb collimator with different diameters. This system was defined by the FLUKA Monte Carlo code; the detector efficiency and gamma attenuation coefficients were simulated.

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