Inelastic scattering of electrons by ions with a core in a near-resonance external field

Spectral-angular and polarization dependences of the cross section of inela stic scattering of electrons (with a Born parameter higher than or on the o rder of unity) by lithium-like ions in a near-resonance external electromag netic field are calculated and analyzed for the case of strongly inelastic processes. Calculations are performed in the approximation of a constant qu antum current with allowance for the non-Coulomb character of the scatterin g potential and exchange effects in the polarization channel. The influence of polarization-interference and nondipole effects on the cross sections o f photon absorption and emission differential and integral in the angle of scattering of an incident particle and on the difference (absorption minus emission) cross section of inelastic scattering is investigated.