Affiliation: | a Plasmaphysics, Gesellschaft für Schwerionenforschung mbH, Darmstadt University of Technology, Planckstrasse 1, 64291 Darmstadt, Germany b Hahn-Meitner-Institut Berlin, Germany |
Abstract: | We report on measurements of charge changing cross-sections and energy losses in dependence on the initial and final charge state of Ne ions at an incident energy of 2 MeV/u penetrating thin carbon foils. Different initial charge states could be separated in energy by applying a high voltage in front of the carbon foils; the final charges and their energy loss were measured with a high-resolution magnetic spectrometer. We derived a consistent evolution of the charge state distribution solving the corresponding rate equations for the measured cross-sections. Including the charge state dependent energy losses, ΔE(qi,qf), stopping power values for frozen charge states, S(q), could be extracted. The experimental data are compared with different theoretical predictions. |