The Theory of Fast Ion-Atom Collisions

摘要: Publisher Summary This chapter describes the theory of fast ion-atom collisions that are based upon high-energy, Born-type expansions, or their distorted-wave generalization. The focuses on Born theories processes involving only one active electron. multi-electron species exhibit all features electron prototype, but also include new types motion arising from electron–electron interaction. Effects because this interaction even dominant in some ranges ion charge, collision velocity, secondary-electron energy. Collisions two electrons have been considered to isolate separate effects electron–nucleus and interactions as clearly possible. For one-electron collisions, first approximation has analyzed terms qualitative differential excitation ionization cross sections it predicts. ionization, approximation, either direct capture form, is fundamentally inadequate. influence higher-order processes, particular double-binary Thomas type, emphasized chapter.