Akademik Veri Yönetim Sistemi
Applied Radiation and Isotopes, cilt.229, 2026 (SCI-Expanded, Scopus)
This study investigated lead-free newly produced polyaniline composites, doped with different concentrations of bismuth vanadate (BiVO4) (10–20 wt%) without disrupting the polyaniline structure, and explored the potential of these composites as an effective gamma-ray shielding material for the first time. Linear and mass attenuation coefficients (LAC, MAC), half- and tenth-value layers (HVL, TVL), mean free paths (MFP), and radiation shielding efficiencies of composites at low and medium gamma-ray energies were analyzed experimentally. It was observed that with increasing BiVO4 concentration, MAC and LAC values increased at different ratios, and HVL, TVL and MFP values decreased at different ratios, for gamma rays with different energies. An increase in BiVO4 concentration led to a substantial enhancement in the LAC, rising from 0.14 to 0.75 cm−1 at low gamma-ray energy (59.5 keV). In contrast, only a slight increase in the LAC was observed at medium gamma-ray energy (662 keV). Moreover, HVL decreased by approximately 81 % at 59.5 keV and by 25 % at 662 keV. The composite with 20 wt% BiVO4 sample was the best gamma-ray attenuator among all produced composites. Overall, this research highlights the potential of BiVO4-doped polymer composites as efficient and promising materials for shielding low and medium energy gamma-rays in various fields, including industrial and medical radiation facilities, offering a hopeful outlook for the future of radiation protection.