Abstract:
We present the effective optical potential of the interaction of an electron with an atom in
dense semiclassical plasma of noble gases. This potential takes into account the collective
screening effect and the quantum mechanical effect of diffraction. The influence of
diffraction and screening effects on the characteristics of electron–atom collisions was
investigated. Scattering phase shifts decrease with increase of the de Broglie wave. The
electron–atom momentum-transfer cross-section at λB → 0 tends to the data obtained
earlier with a neglecting of the diffraction effect.