CHARGE EXCHANGE INTO EXCITED STATES IN COLLISIONS BETWEEN NOBLE GAS IONS AND ATOMS

Experimental results obtained demonstrate that there are two processes of excitation in every collision system: one is an one-electron capture into excited states, the other is a direct excitation of projectile and target by projectile ion impact. From the comparison of the emission cross sections between the two collision systems, we find that the potential energy defect and the velocity of incident ion are very important factors in emission cross sections, and a competition process of these factors in collisions occurs.