Plane-Wave Born Collision Strengths for Electron-Ion Excitation: Comparison with Other Theoretical Methods

摘要

Collision strengths and rates for electron-impact excitation of atomic ions are calculated in the plane-wave Born (PWB) approximation using the programs of Cowan and Robb. Two modifications of the PWB, which correct for the ionic threshold behavior, are investigated. Comparison is made with the distorted wave and Coulomb-Born-exchange techniques. (ERA citation 10:003629)