IMPROVED NON-EMPIRICAL ABSORPTION POTENTIAL FOR ELECTRON SCATTERING AT INTERMEDIATE AND HIGH ENERGIES: 30-10000 eV F. Blanco* and G. Garcia# *Universidad Complutense, Avenida Complutense 22, 28040 Madid, Spain #CIEMAT, Avenida Complutense 22, 28040 Madrid, Spain In this paper, an analytical expression for the imaginary part of the optical potential used in electron sacttering studies has been derived. Calculations with the proposed potential do not require any empirical parameter to give results in agreement with the experiments.