Dynamic charge-state dependence of the K vacancy production yield in heavy-ion atom-collisions at keV energies

Abstract

The KLL Auger electron production cross section has been measured for collisions between Na⁺, Na²⁺, Ne⁺, Ne²⁺, and N⁺ ions and Ne and N₂ targets. Over a narrow velocity range (0.3-0.9au), the data reveal a dramatic dynamic effect in the 2p pi vacancy occupation probability factor N_pi . This is in contrast to current available theories which invoke a static factor N_pi .