Abstract
The B2O3-TeO2-K2O-Li2O glasses have been prepared using the melt quenching technique. The indirect energy band gap of prepared glass samples increases from 3.3446 eV to 3.5571 eV as the concentration of TeO2 increases. The refractive index (n), static (ε) as well as optical dielectric constant (pdpdt), molar refractivity (Rm) and molar polarizability (αm) decreases with increasing the TeO2 content in the selected glass matrix. The transmission (T) has reverse behaviour of the reflection loss (RL) as the substitution of TeO2 in the Te5 -Te20 glass systems. The Optical electronegativity (χ*) increases whereas the values of linear susceptibility, χ (1) decrease with the substitution of TeO2. For the considered glasses in this study and with the help of Phy-X software, we examined some radiation shielding factors in the low energy region. The selected energy region span from 13.81 keV to 98.97 keV. The mass attenuation coefficient (MAC) shows a downward behavior as a result of increasing the energy from 13.81 keV to 98.97 keV, but at 33.20 keV it has an opposite behavior. The MAC at 33.20 keV is found to be higher than that at 26.34 keV. We found that increasing the content of TeO2 is a successful method of enhancing the MAC. The TeO2 has a positive role on the linear attenuation coefficient (LAC), and the Te20 takes the maximum LAC (72.13 cm−1 at 13.81 keV and 1.91 cm−1 at 98.97 keV.