Article ID Journal Published Year Pages File Type
8041138 Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 2014 7 Pages PDF
Abstract
We have studied charge-exchange straggling theoretically for swift krypton and silicon ions and five target gases in the MeV/u energy regime. We find a pronounced two-peak structure for all ion-target combinations. The peak at the highest energy appears around the velocity where the bare ion and the one-electron ion are equally abundant in the equilibrium charge distribution. Correspondingly, the low-energy peak appears near the cross-over between the charge fractions of the two- and the three-electron ion. The possibility of further peaks at lower energies is discussed. Our findings are compared with recent experimental results on straggling of krypton beams.
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Physical Sciences and Engineering Materials Science Surfaces, Coatings and Films
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