Abstract

• The main purpose of this study was to investigate gamma ray attenuation characteristics of Al-Zn metal alloy shielding material. The attenuation coefficients of Al-Zn metal alloy for various gamma sources were determined using gamma ray spectrometer systems. The gamma ray attenuation characteristics of Al-Zn metal alloy shielding material could be tested by calculating half value layer (HVL), tenth value layer (TVL) and mean free path (MFP).It was found that the photon intensity decreased as attenuator thickness increased. It was seen that linear and mass attenuation coefficients of Al-Zn metal alloy sample decreased while half value layer (HVL), tenth value layer (TVL) and mean free path (MFP) of that sample increased when the gamma energies increased. Therefore, Al-Zn metal alloy shielding materialwere applicable for low energy gamma ray.