The influence of γ-irradiation on molecular structure and mass attenuation coefficients of γ-Al₂O₃ nanoparticles

In this research, γ-Al2O3 nanoparticles (NPs) were synthesized by using the sol–gel process. The photon attenuation properties of these NPs obtained measuring linear and mass coefficients (μl, μm) at different energies. addition, theoretical values μm for micro-particles calculated WinXCom computer program compared with experimental γ-Al2O3. Furthermore, in order to evaluate impact γ-irradiation on NPs, μl before after receiving 20 kGy dose γ-irradiation, investigated. It was observed that decreases because increasing photon’s energy, which indicates changes molecular structure γ-irradiation. Moreover, structural evaluated UV–Vis spectroscopy, x-ray diffraction patterns, scanning electron microscopy images. spectroscopy showed an absorption peak 212.5 nm disappeared when started. average crystalline size determined be 3.65 sample 9.29 maximum kGy. results show increase particle from 6.5 a non-irradiated up 9 highest dose.