Plasma collision processes Atoms 4 Ions 4 Protons 4 Approximation theory 2 Atomic structure calculations 2 Band structure 2 Binary electron contribution 2 Binding energy 2 Calculations 2 Carrier concentration 2 Charge transfer 2 Collision systems 2 Continuum distorted wave eikonal initial state 2 Dirac equation 2 Dirac equations 2 Dispersion (waves) 2 Electron binding energy 2 Electron emission 2 Electron energy levels 2 Electronic density of states 2 Electronic wavefunctions 2 Energy coupling 2 Experimental values 2 Fermi Energies 2 Fermi level 2 Free electron gas 2 Hall effect 2 Helium 2 Inelastic collision 2