Comparison of Experimental and Monte Carlo Efficiencies of 0.5g/cc Epoxy Matrix Marinelli Source with Multiple Radioactive Nuclides

Using the gamma spectroscopy system, it can be determined whether environmental samples or standard radioactive sources are radioactive, and from which elements their radioactivity originates. The purpose of Monte Carlo (MC) simulation is to model a real-life system with its inputs evaluate outputs real results. This study calculates experimental efficiency p-type HPGe detector using 0.5 g/cc Epoxy Matrix Marinelli beaker compares these results GESPECOR PHITS MC Simulation programs. Thus, thickness dead layer, thickens over time affects efficiency, was most compatible result calculations made repeatedly at various alternative thicknesses For 1.5 mm layer thickness, less than 2 % error found between test results, especially energies above 165 keV. As result, that reached an increase 114 after production. current value each should checked, as determination activity.