Abstract
The optical and gamma ray shielding characteristics of (20-x) K2O-xBaO-30TiO2-50P2O5 glasses were shown to be affected by the addition of BaO. The optical band gap energy are increases, refractive index shows a small decrement with addition of BaO in the phosphate-based glasses. With the substitution of BaO, the two parameters, molar refractivity and molar electronic polarizability are both decreased. Reflection loss (RL) is known to range from about 0.171 to 0.153, whereas transmission (T) is reported to fall between 0.7078 and 0.7339. When BaO is added to the oxide ion matrix, the polarizability of the oxide ions increases. The manufactured glass systems have a metallisation of less than one, suggesting that they are non-metallic in nature. The linear attenuation coefficient (LAC) of the tested glasses is investigated between 0.0395 MeV and 0.411 MeV. The LAC values also follow the order of KBTP20 > KBTP15 > KBTP10 > KBTP5 > KBTP0. The glass with composition of 20 BaO-30 TiO2-50 P2O5 has the greatest LAC. The effective atomic number of the KBTP10 sample is equal to 36.66 at 0.0395 MeV, and decreases to 35.35, and 12.27 at 0.0395 MeV and 0.4111 MeV, respectively. The half value layer values at 0.1218 MeV lies within 0.564 and 1.644 cm. The results proved that increasing the BaO content in the glass system leads to more desirable radiation shielding properties for the samples.