Optical and radiation shielding effectiveness of a newly fabricated WO3 doped TeO2-B2O3 glass system

The objective of this study is to investigate the effect of WO3 doping on optical and shielding properties of TeO2B2O3 glass system. A new glass series of [(TeO2)(0.7)(B2O3)(0.3)(ZnO)(0.3)](1-x)(WO3)(x) had been synthesized through l melt-quenching method. Structurally, all glass samples are in long-range structural disorder which has an amorphic nature. The density of samples was seen to decrease as the concentration of WO3 and molar volume increases. In optical analysis, the values for direct and indirect optical band gaps were varied between 2.37 and 3.12 eV and between 2.27 and 2.58 eV respectively. The values of Urbach energy were found to lie within 0.35-1.33 eV. For radiation shielding features, linear attenuation coefficients obtained with FLUKA code and XCOM database are found to be in good harmony with relative difference < 3%. Based upon mean free path, half value layer and linear attenuation coefficient, the glass sample ZnOB2O3TeO2WO3(0.00) having highest per-centage of TeO2 is found to be the most excellent shielding composition among the samples investigated in this study.

Automated summary

The effect of WO3 doping on the optical and shielding properties of the TeO2B2O3 glass system was investigated in this study. The results showed that WO3 doping decreased the density of the glass samples and increased the molar volume. Optical analysis revealed that WO3 doping changed the values of direct and indirect optical band gaps. In terms of radiation shielding, the glass sample with the highest percentage of TeO2 exhibited the best shielding performance.