Charge-state-dependent energy loss of slow ions. I. Experimental results on the transmission of highly charged ions
Richard Arthur Wilhelm, Elisabeth Gruber, Valerie Smejkal, Stefan Facsko, F. Aumayr · Physical Review A · 2016
We report on energy loss measurements of slow $(v\ensuremath{\ll}{v}_{0})$, highly charged $(Q>10)$ ions upon transmission through a 1-nm-thick carbon nanomembrane. We emphasize here the scaling of the energy loss with the velocity and charge exchange or loss. We show that a weak linear velocity dependence exists, whereas charge exchange dominates the kinetic energy loss, especially in the case of a large charge capture. A universal scaling of the energy loss with the charge exchange and velocity is found and discussed in this paper. A model for charge-state-dependent energy loss for slow ions is presented in paper II in this series [R. A. Wilhelm and W. M\"oller, Phys. Rev. A 93, 052709 (2016)].