One-electron capture with simultaneous ionization in Cq+, Oq+ (q = 1-4)-Ar collisions

The ratios Rk1.of k-fold to single ionisation of the target atom with simultaneous oen-electron capture by the projectile have been measurd for 15-480 keV/u (vp = 0.8-4.4 a.u.) collisions of Cq+, Oq+ (q = 1-4) with Ar, using time-of-flight techniques which allowed the simultaneous identification of the final charge state of both the low-velocity recoil ion and the high-velocity projectile for each collision event.