Charge transfer and ionisation processes involving multiply charged ions in collision with atomic hydrogen

Abstract

Total cross sections are presented for the charge transfer reaction Xq++H(1s) to X(q-1)+H+ and ionisation process Xq++H(1s) to Xq++H+-e-. Here Xq+ is a fully or partially stripped ion. The collision energy range lies between 25-200 keV amu-1. Cross sections are also given for charge transfer into particular ionic n states and n, l states for energies of 25 and 50 keV amu-1, where Xq+=H+, He2+, C6+, O8+. The calculations were performed by the classical trajectory Monte Carlo method of Olson and Salop (1977), modified to allow for a better representation of the H(1s) electronic radial distribution. Good agreement is seen with previous classical calculations and with quantum calculations performed by Ryufuku and Watanabe (1979) and others. The authors' results exhibit excellent accord (within 20%) with the measurements of Shah and Gilbody (1981).