NeonKα,Kβsatellite structure induced by 80-MeV argon-ion impact

High-resolution (full width at half-maximum ∼ 3 eV) neon $K$ x-ray spectra obtained from 80-MeV argon-ion bombardment are presented for two narrow ranges of the projectile charge state ($q=\sim 6,\sim 14$). Production of the various satellite lines is found to depend on the projectile charge state. When the projectile is ${\mathrm{Ar}}^{14+}$, the target is at least 6 times ionized, and a significant fraction (> 20%) of the observed radiation comes from hydrogenlike and heliumlike ions. We comment on the reliability of vacancy-production cross sections deduced from measured x-ray intensities.