Charge-state dependence of elastic scattering cross sections at large angles between electrons and multiply charged ions

28 October 1990

journal article
Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics

Vol. 23 (20) , L637-L640
https://doi.org/10.1088/0953-4075/23/20/004

Abstract

The differential elastic scattering cross sections of electrons from F^q+ are calculated using a potential scattering model where each fluorine ion is represented by a static potential. The ratio of the cross section for each charge state q to the Rutherford differential cross section for charge q=9 is larger than unity for large angles, in particular, for theta =180'. The calculations are used to interpret the anomalous q dependence of the binary encounter peak in F^q+-He, H₂ collisions. It is also shown that similar binary encounter peaks observed at smaller angles will show different q dependence.

Keywords

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