Inner-shell vacancy distribution in energetic Ar ions by penetration in solids

Abstract

Projectile K\ensuremath{\alpha} satellite and hypersatellite x-ray yields were measured in collisions of Ar ions with energies of 43, 52, 65, 80, 95, and 300 MeV with targets of C, Mg, Al, Ti, V, Cr, Fe, Co, Ni, Cu, Zn, Y, Nb, Mo, Sn, Nd, Tb, Ho, Ta, and W with atomic number ${\mathit{Z}}_{\mathit{t}}$=6--74. The intensity ratio of hypersatellite to satellite lines is reported as functions of the target atomic number ${\mathit{Z}}_{\mathit{t}}$ and incident energy ${\mathit{E}}_{\mathit{p}}$. The vacancy-sharing model was found to predict the ${\mathit{Z}}_{\mathit{t}}$ dependence of the intensity ratio at 43 MeV in near symmetric collisions. At energies above 80 MeV, the direct Coulomb processes, exspecially the electron-capture processes, determine the ${\mathit{Z}}_{\mathit{t}}$ dependence. Average L-vacancy probabilities are reported for projectiles at energies of 43--95 MeV that acquire single and double K vacancies in the targets.