Electron–atom interactions in dense semiclassical helium plasma

Abstract

The effective optical potential of the electron–atom interaction in dense semiclassical helium plasma is derived. The Hartree–Fock, polarization, and exchange potentials consider the collective screening effect and the quantum-mechanical effect of diffraction. It was shown that when three components of the optical potential act together the characteristics of electron–helium scattering change significantly in comparison with results based on their separate involvement. The influence of the quantum-mechanical effect of diffraction was also discussed.