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In this this paper, five transparent and non-toxic glasses with the chemical identity : 75TeO 10MoO 3 10BaO (5- x)Sm 2 O 3 x Bi 2 O 3 with x = 0 (TMBS-0Bi), 2 (TMBS-2Bi), 4 (TMBS-4Bi), 4.5 (TMBS-4.5Bi), and 5 (TMBS-5Bi) were synthesized using analytic grade chemicals following the melt and quench process. The glasses were characterized for their physical, optical, structural and gamma radiation attenuation attributes. The glasses appear transparent with colour gradient dictated by chemical content. XRD data and analysis confirm the glassy nature of the prepared glasses. As the Bi 2 O 3 content increased, the glass density increased from 5.46 to 5.64 g/cm3. The direct optical bandgap also showed variations with TMBS-5Bi having the highest value of 2.56 eV. The mass attenuation coefficient (µ / ρ) of the glasses was determined through FLUKA simulation and direct XCOM calculations. Results showed great agreement between µ / ρ obtained from both methods. The analysis of photon response parameters of the glasses indicated energy and chemical content variations for photon energies 15–15000 KeV. Generally, parameters relating to gamma ray absorption show improvement as Bi 2 O 3 was enhanced in the glasses. therefore, TMBS-5Bi and TMBS-0Bi is the best and weakest photon absorber among the prepared glasses. The TMBS-5Bi offer good alternative as a transparent and environmentally friendly glass for radiation control applications. The TMBS-XBi glasses are attractive optical materials on one hand, they are also considered candidates in radiation protection functions. [ABSTRACT FROM AUTHOR]

This study, aims to investigate on non-traditional tellurite glasses and conducted to study structural, mechanical, acoustic and parameters of gamma radiation shielding (eg. Liner Attenuation Coefficient (LAC), Half Value Layer (HVL), micro-hardness (H)), for the Ternary TeO 2 /TiO 2 /B 2 O 3 glasses with different molar composition. Important parameters used for radiation shielding of the glass samples were investigated by both Monte Carlo simulation codes (MCNP and Geant4) and Phy-X/PSD software, in the 0.284, 0.347, 0.511, 0.662, 0.826, and 1.173 MeV photon energies. As a result, the values of Elastic module, structural, acoustic parameters and fractal Bond were found in this paper. Our calculation confirmed that samples (with the most TeO2 content almost 80 mol% and the least B2O3 amount around 10 mol%) represented the least Molar oxygen volume (11.980 cm3/mol) and the most Oxygen packing density (83.465 mol/L). The simulated results, show that the HVL for the TT and TB glass samples are below the level of other examples, and the TTB2 has the highest HVL at high energy (1.173 MeV). Also, TT and TB have higher MAC and TTB2 has lower MAC. [ABSTRACT FROM AUTHOR]

In this paper, we investigate the influence of SnO 2 content on the physical, elastic, optical, and radiation shielding properties of the glasses described by the formula of xSnO 2 -(10-x) 60Bi 2 O 3 -30PbO- B 2 O 3 (x = 0, 2, 4, and 6 mol%). The oxygen packing density (OPD) are observed in decreasing trend with the values of 54.93, 54.42, 53.92, 53.41 cm−3.mol−1 for x = 0, 2, 4, and 6 mol%, respectively. Moreover, we found that the SnO 2 content contributes to enhance the optical properties of the present glasses. The HVL of the glasses was almost constant with a value of about 0.001 cm. However, at the maximum energy (15 MeV), HVL assumes the value of 1.627, 1.621, 1.615, and 1.608 cm for x = 0, 2, 4, and 6 mol%, respectively. Furthermore, the present glasses possess superior photon absorbing capacities compared to several commercial glass and concrete shields. This exemplary shielding capacity shown by these glasses propels them to be as future shielding materials against gamma radiation. [ABSTRACT FROM AUTHOR]