Akademik Veri Yönetim Sistemi
Applied Radiation and Isotopes, cilt.232, 2026 (SCI-Expanded, Scopus)
In this study, the radiation shielding performance of xBi2O3-(0.40-x)B2O3-0.15ZnO-0.45P2O5 borophosphate glass-ceramics (BiBZnP1–BiBZnP4; x=0.10–0.25) was systematically investigated for photon energies ranging from 0.015 to 15 MeV. Theoretical mass attenuation coefficients (MAC), linear attenuation coefficients (LAC), half-value layer (HVL), tenth-value layer (TVL), mean free path (MFP), and effective atomic numbers (Zeff) were calculated using Phy-X/PSD software, with MAC values cross-validated via the XCOM database to ensure accuracy and reliability. At low energies (0.015–0.06 MeV), MAC and LAC values were highest, reflecting the dominance of the photoelectric effect and the significant contribution of Bi2O3 content. A pronounced increase in MAC was observed near 0.0905 MeV, corresponding to the Bi K-edge absorption, followed by a gradual transition to Compton scattering as the primary interaction mechanism above 0.1 MeV. In the medium-energy range (0.1–1 MeV), Compton scattering governed photon interactions, leading to predictable reductions in MAC and increases in HVL, TVL, and MFP. At higher energies (1–15 MeV), photon attenuation stabilized, with pair production effects emerging but Bi-rich compositions maintaining superior shielding performance. Notably, BiBZnP4, with the highest Bi2O3 content, consistently exhibited the lowest HVL (0.183–4.823 cm), TVL (0.012–16.022 cm), and MFP (0.005–6.958 cm) values, alongside the highest Zeff across all energies, demonstrating enhanced photon attenuation. These results underscore the critical role of heavy metal oxide content in modulating gamma-ray interactions across a broad energy spectrum. This study demonstrates that Bi-rich BiBZnP glass-ceramics exhibit high theoretical shielding performance, and the results obtained constitute indicative findings that may form a basis for future experimental verification and independent simulation studies.