Ionization Produced by Atomic Collisions at kev Energies. III

The electron evaporation model of the collision-ionization process that occurs when atoms collide at high energies is extended to include atoms with from two to eight electrons in the outer shell. Application of the model to data from collisions of ${\mathrm{N}}^{+}$ on Ar and ${\mathrm{Ne}}^{+}$ on Ar gives evidence for a resonant electron capture effect taking place in high-energy violent collisions which was heretofore masked by the multiple ionization consequent on such collisions.