Determination of γ-spectrometric parameters for Na 2CO 3 and H 2O in Na 2CO 3-water solution

Abstract

The mass attenuation coefficients of Na 2CO 3 solved in water was measured for Na 2CO 3 contents up to 0.191 g of salt in cm 3 of water at the energy of 0.662 MeV emitted from 137Cs. On the basis of the mixture rule the mass attenuation coefficients were calculated for the solutions at each salt content. Comparison between the measured and calculated values revealed, in general, those experimental values of linear and mass attenuation coefficients are smaller than the calculated ones. The total atomic cross-sections and effective atomic numbers were obtained for the mass attenuation coefficients. Least square method has been applied to determine the mass attenuation coefficients, atomic cross-sections, and the effective atomic numbers of Na 2CO 3 and water, separately, in the solution and compared with the corresponding calculated values.