Monte Carlo simulation of GM probe and NaI detector efficiency for surface activity measurements

2013 ◽  
Vol 58 ◽  
pp. 45-51 ◽  
Author(s):  
Selena Grujić ◽  
Ivana Đorđević ◽  
Miodrag Milošević ◽  
Uranija Kozmidis-Luburić
2020 ◽  
Vol 176 ◽  
pp. 109081
Author(s):  
İskender Akkurt ◽  
Faez Waheed ◽  
Hakan Akyildirim ◽  
Kadir Gunoglu

2019 ◽  
Vol 2019 (23) ◽  
pp. 8543-8545
Author(s):  
Siming Guo ◽  
Jinjie Wu ◽  
Jian Zhang ◽  
Zihao Fan ◽  
Weina Che ◽  
...  

2004 ◽  
Vol 34 (3a) ◽  
pp. 852-854 ◽  
Author(s):  
Mauro N. Takeda ◽  
Mauro S. Dias ◽  
Marina F. Koskinas

2014 ◽  
Vol 529 ◽  
pp. 391-394
Author(s):  
Jun Peng Hu ◽  
Fang Liu ◽  
Xiao Ping Ouyang

We make use of Monte Carlo simulation to investigate the detection efficiency versus different H/R ratio of NaI:Tl detectors, and the volume of detector is constant. The energy of incident monoenergetic γ rays is 4.438 MeV, 1.331 MeV and 0.662 MeV emitted from AmO2Be,137Cs and60Co respectively. The size of NaI:Tl detector dimension is setted up to 20 groups of different radius (H) and height (R), whereas the volume of NaI:Tl crystal will not be changed. The result reveals that the detector efficiency dependence on H/R ratio of the NaI:Tl detector and the incident γ-photon energy. For very low H/R ratio, the detector efficiency increase rapidly and tend to be stable. We draw a conclusion that when the H/R ratio is approximately equal to 1.5, the incubation effect is more obvious, which contribute to the increase of detection efficiency. It is meaningful of the research, namely, it be beneficial to design the optimal dimension of detector for detecting γ rays of 4.438 MeV, 1.331 MeV and 0.662 MeV.


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