Radiation shielding, optical, and physical properties of alkali borate glasses modified with Cu~(2+)/Zn~(2+) ions

摘要

Three systems of alkali borate glasses containing either 0.15% CuO or ZnO (mol. %) were prepared using melting-annealing technique. Some of the glasses optical, physical, and radiation shielding properties have been interpreted. The optical UV absorbance spectra show a good stability before and after gamma irradiation. Also, many of the glasses physical parameters have been calculated, such as optical energy band gap (E_(opt)), refractive index (n), optical transmittance coefficient (T), reflection loss (R_L), optical electronegativity (X), metallizatioxn criterion (M_(Criterion)), static dielectric constant(ε_(Static)), and optical dielectric constant (ε_(Opticai))- The efficiency of the glasses as radiation shielding materials has been by simulated and discussed by Monte Carlo code (MCNP-5) and calculated theoretically by Phy-X/PSD program, such as linear attenuation coefficient LAC (μ, cm~(-1)), mass attenuation coefficient (μ/ρ), half-value layer (HVL), and fast neutron removal cross-section (FNRCS, Σ_R (cm~(-1))). The glasses show close efficiency to shield radiation; however, the difference depends on the significant variation in molecular weight (MW) of the introduced transition metal ion and the effective atomic number of the prepared glasses.