IMPACT-PARAMETER-DEPENDENT INNER-SHELL VACANCY PRODUCTION IN 0.7-2.7-MEV-AMU NI-58(28) COLLISIONS WITH MN-25, SN-50, AND PB-82

Impact-parameter-dependent probabilities of K and L characteristic x-ray production in collisions of 45-, 94-, and 138-MeV Ni2858 ions with solid targets of Mn25, Sn50, and Pb82 were measured. The results are compared with predictions of the statistical and the molecular-orbital models for inner-shell vacancy production. A short development of the statistical model in a random-walk approximation is given to display the physical content of the model in simple terms. © 1979 The American Physical Society.