Design aspects of a gamma-ray energy-spectral Compton-scatter nondestructive testing method

Experimental Validation of the Backscattering Gamma-Ray Spectra With the Monte Carlo Code

“…This source was placed in the middle of a cylindrical cavity with a depth of 300 mm and a diameter of 36.8 mm fabricated in a lead container. The lead rectangular container with dimensions of 750 mm x 400 mm x 530 mm was especially prepared to enclose the source for biological safety and minimize background risk to the desired risk-free level.According to the findings of Hassan et al [6] and Hussein [7] regarding source collimatorsused with the Compton scatter nondestructive testing method, the lead cylindrical collimator used in this study was designed to have two parts. The first collimator part had an outer diameter of 73.8 mm and a length of 20 mm with an internal diameter of 10 mm.…”