Some Charge Exchange and Dissociation Collisions of N₂²⁺Ions

Abstract

The formation of an N+ ion beam can be accompanied by the formation of N22+. When collision processes involving N+ are studied, the N22+ can also enter into a variety of reactions with quite large cross sections, which introduce large errors in the cross sections associated with the N+ processes. Data are given for the N22+ content in the ion beam coming from the typical electron impact source; cross sections are measured for the N22+ collision in N2 through the energy range 1.2 to 4.0 keV. Assuming that the majority of N22+ ions are in their ground state at the time of collision, a set of most probable reactions are chosen which best fit our data. They are