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Gamma backscattering analysis of flaw types and orientation based on Monte Carlo GEANT4 simulations
R Wirawan1, L M Angraini1, N Qomariyah1
1Department of Physics, FMIPA, University of Mataram, Jl. Majapahit 62, Mataram, 83125, Indonesia.
Abstract:
In this study, we modeled the effects of flaws in a solid material as three different slit types (rectangular, rectilinear, and semicircular) and their orientations in a duralumin (aluminum alloy) plate in simulations based on 137Cs gamma backscattering. The simulations were performed using the Monte Carlo GEANT4 simulation toolkit. The simulation results showed that the shape of the slit had a small effect on the backscattering peak curve. Rotating the slit on the Y-axis and Z-axis of the duralumin plate influenced the 137Cs backscattering peak height in the energy range from 0.185 to 0.20 MeV, where the backscattering peak areas exhibited specific patterns due to the slit orientations.
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