Atomic excitation by charge exchange of heavy ions in gas and solids

The angular distribution of the 2P → 1 S transitions following electron capture of 35 MeV/u Kr36+ ions was measured in neon, argon, carbon, silicon and copper targets. Very thin solid targets were used for insuring single collision conditions. Polarizations of the Lyman alpha-X rays emitted by projectiles after capture were calculated from the best fit of their measured angular distributions. Theoretical polarizations of Lyman alpha lines including cascade contribution are also reported