Influence of the gap-target configuration on the measured energy loss of C-ions in Ar-gas and -plasma

Plasma targets for measuring energy loss and charge state distribution of heavy ions in non-ideal Ar-plasmas (Γ(Γ-parameters 0.55–1.5) have been developed and the interaction with several ion species, C, Ar, Xe at 5.9MeV/u, was studied. Here the results for 5.9MeV/u C-ions are presented which have been understood just recently by considering the gas dynamics in the target due to the special configuration with the gap interaction zone for the plasma, which can be also simulated by the VarJet code.