Abstract
This study has been devoted to investigate the radiation shielding performance of some najran granite samples. In this investigation, experiments are carried out in order to depict the radiation shielding properties of local granites considering the influence from existing some oxide elements. Different types of granite samples were examined and computed for gamma shielding parameters such as linear attenuation coefficient (LAC), mass attenuation coefficient (MAC), half value layer (HVL), tenth value length (TVL), and mean free bath (MFP). The transmission of gamma rays has been measured by using NaI (T1) detector. The Total atomic and total electronic cross sections for these samples have been investigated. The radiation shielding capabilities of granite samples were experimentally tested at 59.5, 661.6, 1173, and 1332 keV. It is clear that, the granite samples had a considerable attenuating effectiveness at low energies. Furthermore, the experimental LAC values were found to be consistent with those obtained theoretically using the XCOM program. The chemical composition of the samples has been investigated using EDX (energy dispersive spectroscopy). The computed data was compared to the experimental findings. Results of irradiation of granite samples with gamma rays and the attenuation characteristics, along with the chemical analysis of the granite samples are also addressed and thoroughly discussed.