Single-electron capture into Ar6+(nl) subshells in Ar7++He collisions

Abstract
The charge exchange collision between Ar7+ (1.75 KeV a.m.u.-1) and He has been studied by VUV spectroscopy. In the single-electron capture process, Ar6+(nl) is observed, n=4 being populated. Absolute cross sections have been measured. Double capture is identified and populated levels are assigned.