The impact of TeO2 on the gamma attenuation features of oxyfluoro boro-tellurite glasses

This work presents a study on the characteristics of the radiation attenuating behavior of oxy-fluoro borotellurite glasses with general formula TeO2–B2O3–LiF–BaO–Bi2O3. The mass attenuation coefficient (MAC) decreases pointedly as the energy goes up from 15 keV–0.15 MeV. The MAC for the tested samples lies within the range 40.032–50.170 cm2/g at 15 keV. We examined the effective atomic number (Zeff), and the results revealed that initially Zeff reaches the maximum values up to around 0.1 MeV and then Zeff decreases and reaches the minimum values between around 1 and 4 MeV. The Zeff lies within the range of 56.11–57.85 (at 15 keV). The Zeff of the tested samples increases with the increasing content of TeO2. The half value layer (HVL) was evaluated, and the effect of TeO2 and the energy on this parameter was discussed. The minimum HVL was reported at 15 keV and varied between 0.00463–0.00226 cm.