## 3 Results and Discussion
### Radiation Shielding Attributes  
The LAC was simulated using MCNP-5 and plotted in Figure 6. The simulated LAC values are affected by two significant parameters. The incoming gamma photon energy is the first. The simulated values of LAC decreased when the incoming radiation energy increased. The LAC's highest values were recorded for gamma energy of 0.248 MeV and varied in the range between 0.288-0.441 cm\({}^{-1}\) for glasses BCNSb0 and BCNSb10, respectively. Furthermore, an increase in the incoming photon energy resulted in a more significant decrease in LAC values. This decrease is related to the interaction type of gamma photons with the glass atoms. In the studied energy zone (0.248-1.406 MeV), Compton scattering interactions (CS) are predominant, and the CS cross-section is opposite to the incoming photon energy (\(\sigma_{com}\propto\frac{1}{2}\).) [29]. Around 1.406 MeV, the LAC's lowest values were recorded, and they varied in the range between 0.132-0.154 cm\({}^{-1}\) for glasses SCNSb0 and SCNSb10, respectively. Figure 5: Dependence of the softening temperature on the Sb\({}_{2}\)O\({}_{3}\) contents. Figure 6: Variation of the linear attenuation coefficient LAC of the studied glasses versus the gamma photon energies and Sb\({}_{2}\)O\({}_{3}\) contents. The chemical composition of the studied glasses (Sb\({}_{2}\)O\({}_{3}\) insertion) represents the second factor that affects the LAC values. As mentioned in Figure 6, the replacement of the SiO\({}_{2}\) by Sb\({}_{2}\)O\({}_{3}\) increases the studied glasses' simulated LAC. This trend is related to SiO\({}_{2}\) having a lower density and molecular weight (\(\rho\) = 2.65 g cm\({}^{-3}\) and MW = 60.08 g mol\({}^{-1}\)) being replaced by Sb\({}_{2}\)O\({}_{3}\) (for this oxide, \(\rho\) = 5.2 g cm\({}^{-3}\) and MW = 291.52 g mol\({}^{-1}\)). The greatest LAC was achieved for SCNSb10 glass with 10 mol % Sb\({}_{2}\)O\({}_{3}\) content and varied in the range between 0.154-0.441 cm\({}^{-1}\), while the lower LAC obtained for glass SCNSb0 without Sb\({}_{2}\)O\({}_{3}\) and changed between 0.132-0.288 cm\({}^{-1}\) at gamma photon energies between 0.248-1.406 MeV, respectively. The recorded increase is related to CS interactions, where the CS cross-section linearly increases with an increase in the \(Z_{\rm eff}\) of the studied samples (\(\sigma_{com}\propto Z_{eff}\)). The MAC was determined from the simulated LAC, according to Equation (11). It was also calculated theoretically using the XCOM program reported by [PERSON] and [PERSON] [30]. Figure 7 showed that the MAC has a trend line similar to the one discussed earlier regarding the LAC and is also affected by the incoming gamma photon energy and the glass chemical composition. The highest MAC was achieved at lower energies (0.248 MeV) and varied in the range between 0.115-0.147 cm\({}^{2}\)/g, but the smallest MAC was found at higher energies (1.406 MeV) and ranged between 0.0531-0.0513 cm\({}^{2}\)g\({}^{-1}\) for the studied SCNSb0 and SCNSb10 glasses, respectively. Figure 8 showed that the simulated and theoretical MAC are close together, with the correlation coefficient (R-squared) being equal to 0.999 for SCNSb10 as an example. This reflected the accuracy of the simulation process. The transmission factor (TF) is an important parameter that predicts the number of photons that penetrate the investigated sample. The TF changes for all SCNSb0-SCNSb10 glass samples with the glass thickness and incoming photon energies are illustrated in Figure 9. The incoming photon energy represents the TF's main parameter, where the TF values increase linearly with an increase in photon energy. A lower TF was predicted at low energies (0.248 MeV), which decreased in range 74.941-64.314% for glasses SCNSb0 and SCNSb10, respectively, for a thickness of 1 cm (as an example). On the other hand,  
Figure 7: Comparison between the simulated and calculated MAC for the studied glasses.