Equilibrium charge state distributions of beam foil excited molecular fragments exiting carbon foils

Summary Equilibrium charge state distributions of ions emerging from solids have been measured. As incident particles were used both atomic (C⁺, N⁺, O⁺) and molecular (N ₂ ⁺ , CO⁺) projectile ions (0.025<E/M<0.108 MeV/u). The data of atomic projectile ions agree well with the data of other authors in a range in which they overlap. Charge state fractions of emerging molecular-fragment ions behind a carbon foil are strongly influenced by the Coulomb explosion and possibly by the wake potential. Supported by BMFT/Bonn.