K-shell excitation in interatomic collisions for carbon, nitrogen and oxygen. II. Heteronuclear collisions

This is the authors' abstract. We don't add key points for this paper.

For pt.I see ibid., vol.12, no.21, p.3569 (1979). The K Auger electron yields from projectiles and target atoms are measured concurrently for C-N, N-O and C-O collisions in the intermediate energy range from 0.4 to 2.5 meV and the derived cross sections for K-shell excitation are compared with the MO model predictions of Taulbjerg et al. (1976) and Meyerhof (1973). Although some deviations are seen, the results support that 2p pi -2p sigma rotational and 2p sigma -1s sigma radial couplings successively proceed in these collisions. The projectile-charge-state dependence of cross section for the C-N and N-O cases reveals that the cross section magnitude is crudely proportional to the number of total 2p vacancies.