High-Resolution Study of NeKαX-Ray Transitions as a Function of Oxygen-Projectile Charge State

$K\alpha$ transitions of neon are resolved, with a curved-crystal spectrometer, into eight components corresponding to varying amounts of multiple $L$-shell ionization. The degree of multiple $L$-shell ionization of neon increases with an increase of the projectile charge state of 30-MeV oxygen ions. The change in the neon satellite structure for the ${\mathrm{O}}^{+7\mathrm{}}$ case as compared to the ${\mathrm{O}}^{48}$ case (bare nuclear charge) is substantial. An effective fluorescence yield is extracted from the data and agrees with a recent value obtained from poor-resolution Auger-electron and x-ray measurements.