Abstract
Using simulation of ion trajectories, the neutral fraction of 504 keV hydrogen ions scattered on an NiSi2(111) crystal is calculated for different scattering geometries. The probabilities of electron capture and loss in a single ion–atom collision as a function of impact parameter are calculated using, respectively, the continuum distorted wave and the sudden perturbation approaches. The calculations are compared with experimental results of Ohdaira et al. [Phys. Rev. A 48, R1737 (1993)]. The sensitivity of the scattered ion neutral fraction to the crystal surface structure and to the specifics of charge exchange of ions in solids is discussed.
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