Structural and Optical characterization of gamma irradiated PVA-PEG/Cr2O3 nanocomposite filmsMai Barakat, Radiyah Bahareth, Eman Mahrous, Saad Aldawood and Samir NouhEur. Phys. J. Appl. Phys., 97 (2022) 35DOI: https://doi.org/10.1051/epjap/2022210268