The Scattering and Polarization of Electrons by Gold

Abstract

Using semi-analytic methods, accurate calculations of phase shifts are carried out for an exponentially screened field for electrons with energies between 0.9 and 121 keV. Utilization of these values shows that screening has a relatively small effect on the scattering above 33 keV and on the polarization above 121 keV. The precise form of the field becomes important below 5 keV, where diffraction effects become marked. The polarization is a maximum near 120?, both for the screened and the unscreened field, in agreement with recent experiments, though near the maximum the experimental value is only about half the theoretical.