TY - JOUR AU - Limkitjaroenporn, P. AU - Chewpraditkul, W. AU - Kaewkhao, J. AU - Tuscharoen, S. PY - 2012 TI - Effective Atomic Number of Lead Sodium Borate Glass Systems at 662 keV JF - Energy Research Journal VL - 2 IS - 1 DO - 10.3844/erjsp.2011.29.33 UR - https://thescipub.com/abstract/erjsp.2011.29.33 AB - Mass attenuation coefficients of glass systems xPbO: 20Na2O: (80-x)B2O3 (x = 5, 10, 15, 20, 25, 30, 35, 40, 45, 50 and 55% mol) were determined at 662 keV photon energy using gamma rays transmission method. The theoretical values of mass attenuation coefficients were calculated by WinXCom program. These coefficients were then used to determine the effective atomic numbers of glass samples. All shielding parameters were increased with increasing of PbO concentration. Our results have uncertainty less than 1% between experimental and theoretical values.