Effect of La2O3 Additive on the Radiation Shielding Properties of Cobalt-doped Borate Glasses
Radiation protection becomes a necessary action in radiology, Nuclear Medicine, Radiotherapy and other institutions which make use of radiation. The aim of this work is to evaluate the radiation protection features of cobalt-doped borate glass with La2O3 additive. The glasses named here as S1, S2, S3, S4 and S5 with 0, 0.5, 1, 1.5 and 2 mol% of La2O3 respectively were assessed for their Linear Attenuation Coefficient, LAC, Mass Attenuation Coefficient, MAC, Half value Layer, HVL and Effective Atomic Number Zeff. We found that the glasses have LAC, MAC and Zeff higher than ordinary concrete and Ilmenite concrete, especially S3 which has the concentration of 1 mol% of La2O3 and has lowest HVL at lower energies below 0.1 MeV and above 4 MeV than the other samples, and also found that S5 with 2 mol% of La2O3 is more advantageous for energy range 0.1 - 4 MeV. We therefore concluded the applicability of these glasses for radiation shielding and that the addition of La2O3 increases their radiation protection features.