Enhancement of dielectronic processes in Ne10++He collisions at low keV energies

The method of high-resolution Anger spectroscopy was used to study mechanisms for double-electron capture producing the projectile configurations 3lnl' and 4lnl' (n greater than or equal to 4) in Ne10+ + He collisions. Emphasis was given to slow collisions with projectile energies near I keV. At low collision energies the production of the configurations 3lnl' (n greater than or equal to 6) of nonequivalent electrons is found to become dominant. It is shown that dielectronic processes produced by the electron-electron interaction play a major role in the creation of the Ne8+(3lnl') states.