Boro-tellurite glasses have recently been attracting the attention of several researchers as a tremendous optical device and shielding material. In this work, we have synthesized borotellurite glasses with barium oxide (BaO) by melt quenching technique. The structural and shielding property changes after adding of barium oxide in boro-tellurite glass were studied using Fourier Transform Infrared (FTIR) and Lead Equivalent Thickness measurement (LET), respectively. The results show that the bismuth oxide increases glass density, changes the glass structure, and increases the radiation shielding properties. Changes in the glass structure are due to atomic rearrangements and formation of nonbridging oxygen (NBO). The density of boro-tellurite glass system increased when BaO content increased, which is due to the high molecular weight of BaO and the increasing number of non-bridging oxygen (NBO) atoms in the glass structure. In addition, the mass attenuation coefficient, μm of the glass system increases as BaO concentration increases and the half value layer, HVL and mean free path, MFP of 30BaBTe glass is better than some standard concretes.

The gamma shielding parameters of [(TeO2)0.7(B2O3)0.3]1-x(BaO)x glass system in terms of attenuation coefficient, effective atomic number and electron density have been obtained theoretically by WinXCOM programme. The mass attenuation coefficient of all glasses increases with increasing amount of barium oxide, BaO. In present work, the highest composition of BaO in glass system (x = 0.25 mol %) give the highest value of mass attenuation coefficient, μm. Another shielding parameter such as effective atomic number (Zeff) and electron density (Ne) estimated using WinXCOM programme are depending to the barium composition and photon energy.