摘要: This chapter addresses primarily the process of charge exchange and cross sections for electron capture. The theory loss, which is similar to target ionization, indicated only briefly in this chapter. treatment includes classical quantal Thomas as well other models by Bohr others. Essential steps are described development quantum light ions, particular problems encountered with Brinkman-Kramers significance first- versus second-order perturbation exchange. Brief accounts given distorted-wave eikonal approximations radiative concludes a list data sources.