Production of K-Shell Vacancies in Ion-Atom Collisions

Abstract

Fano-Lichten’s electron promotion model is applied for the cases of C⁺–C and N⁺–N collisions. More improved computations than the previous paper [T. Watabe et al.: J. Phys. Soc. Japan 34 (1973) 781] are carried out for the calculations of the orbital energies, the interaction matrix elements, the classical trajectories and the differential equations. The results are compared with the experimental ones. For C⁺–C, the agreement is satisfactory in the present status of experimental research. For N⁺–N, the relative energy dependence of the cross sections is in good agreement with experiments, but the absolute value is about 3 times greater than that of experiment. Discussions are made for the applicability of the scaling law.