Ion-Atom-Wave — Calculation of single ionization cross sections in ion—atom collisions Original Research Article

A Fortran 90 program is presented, namely Ion-Atom-Wave (IAW), which calculates total, single and double differential cross sections for the single ionization of atomic and molecular hydrogen-like targets and helium-like targets by both light-and-heavy-ion impact. The cross sections are evaluated within the continuum distorted-wave final-state (CDW) and the continuum distorted-wave eikonal-initial-state (CDW-EIS) approximations. IAW calculates cross sections within the wave treatment. This program extends a previously published program ION (D.S.F. Crothers and M. McCartney, Comput. Phys. Commun. 72 (1992) 288) which calculated the total, single and double differential cross sections for the ionization of hydrogen-like targets by fully stripped ions.