K X-ray transitions in highly charged neon recoil ions have been observed in collisions of 1.4 MeV/amu Ar¹²⁺, ¹⁴⁺, Ni¹⁶⁺, Kr¹⁸⁺, Xe²⁴⁺, Pb³⁶⁺ and U⁴⁰⁺ with a neon gas target. The spectral lines are attributed to excited states of Ne⁹⁺, Ne⁸⁺ and Ne⁷⁺. Experimental evidence is given for a secondary selective electron capture into outer shells of fully stripped slow target ions.