“…Kumar [10], calculated the effective atomic numbers and electron densities of nucleobases DNA in the energy range 1 keV-100 GeV using the WinXCOM. Akman et al [11], investigated the chemical effect on the total mass attenuation coef icients, molecular, atomic, and electronic cross sections, effective atomic numbers and electron densities for some selected indium complexes at 59.54 keV. The effective atomic numbers and electrons densities of some selected Gd compounds were determined using the total mass attenuation coef icients in the energy range from 39.52 to 57.14 keV by Akman et al [12].…”