Abstract

Multiple-vacancy production in the rare gas atoms He, Ne, Ar, Kr and Xe by 1.4 MeV/u highly stripped ion impact is studied. From a recoil-ion-projectile-ion coincidence experiment charge-state distributions of target ions were obtained distinguishing between pure ionization and capture of up to three electrons by projectile ions N 6+,7+, Fe 12+,15+,20+,21+, Kr 18+, Gd 37+, and U 30+,36+,41+,44+,48+. For high-charge-state projectiles the relative fractions of recoil ions for concomitant electron capture and ionization are found to be independent of projectile charge or species.

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