Abstract
A sequence of transparent homogenous glasses consists of 50Na(2)O - (50-x) SiO2 - xZrO(2), (0 <= x <= 20 mol %), are synthesized by conventional method. All prepared samples are confirmed in an amorphous state by the X-rays diffraction XRD. The glass temperature T-g, crystallization temperature T-c, and temperature of full crystallization T-p values are increased by the increment of ZrO2. For heat-treated glasses, the XRD results show that most selected glasses appear to be completely crystallized. Ba-133, Cs-137 and (60) Co sources are used for experimental measurements of the mass attenuation coefficient (MAC) of gamma-rays at 365, 662, 1172 and 1332 keV respectively and theoretical calculation were depicted using XCOM, MCNP5 and Phy-X/PSD programs procedures. MAC of our samples was compared with some commercial and published nuclear radiation shielding as ordinary concrete, 100% Na2B4O7 and 100% SiO2 glasses systems.