In the present paper, 10NaF - (59-x)B2O3 - xGd2O3 - 30Bi2O3 - 1Sm2O3, where x = 0.0, 2.5, 5.0, 7.5 mol% glass system has been synthesized by melt quenching route. The density of G0.0 is 4.460 g/cm3 and reached 5.224 g/cm3 at the G7.5 sample with a molar surplus of Gd2O3. There is an increment in oxygen packing density (63.867 – 67.001 mol/cm3) and a decrement in oxygen molar volume (15.658 – 14.925 cm3/mol) discloses the tightly packed structure of the studied glasses. Moreover, enhancing field strength (1.346 – 1.523 × 1017 cm2) confirms the compactness of present oxyfluoride glasses. The linear attenuation coefficient and effective atomic number (Zeff) increase with the concentration of Gd2O3. The 7.5 mol% Gd2O3 doped glass sample exhibits a higher value of mass attenuation coefficient (MAC) as compared to the other reported glasses. The exposure buildup factor increases as the penetration depth of the material increases. Half value layer (HVL) and mean free path (MFP) decrease as Gd2O3 concentration increases in the glass network. The G7.5 glass demonstrates the lowest value in the half value layer and the highest value in the neutron removal cross-section. Therefore, prepared glasses show good performance in neutron and gamma-radiation shielding.
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