Ionization due to multipleN- andM-shell excitation in penetrating collisions of 0.15-1.20-MeVXe+with Xe

The final charge states of 0.15- to 1.20-MeV ${\mathrm{Xe}}^{+}$ ions scattered through angles from 1 to 20 deg by single collisions with Xe atoms have been measured. The data show the dependence of multiple $N$- and $M$-vacancy production upon the collision's distances of closest approach, which ranges from approximately 0.1 to 0.5 Å. The final charge states of those ions scattered to particular angles have average values which range from 1.5 to 16.0 in these collisions.