Ionisation Differential Cross Section Measurements for N₂ at Low Incident Energy in Coplanar and Non-Coplanar Geometries

Abstract

Ionisation triple differential cross sections have been determined experimentally and theoretically for the neutral molecule N2 over a range of geometries from coplanar to the perpendicular plane. Data were obtained at incident electron energies ~10 and ~20 eV above the ionisation potential of the 3σg, 1u and 2σg states, using both equal and non-equal outgoing electron energies. The data were taken with the incident electron beam in the scattering plane (ψ = 0°), at 45° to this plane and orthogonal to the plane (ψ = 90°). The set of nine measured differential cross sections at a given energy were then inter-normalised to each other. The data are compared to new calculations using various distorted wave methods, and differences between theory and experiment are discussed.

Department(s)

Physics

Research Center/Lab(s)

Center for High Performance Computing Research

Keywords and Phrases

Dissociation; Einsteinium; Electron Energy Levels; Electrons; Ionization; Nitrogen; Differential Cross Section; Distorted Wave Methods; Electron Impact; Incident Electron Beams; Incident Electrons; Non-Coplanar; Perpendicular-Plane; Triple Differential Cross Sections; Impact Ionization

International Standard Serial Number (ISSN)

0953-4075

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2016 Institute of Physics - IOP Publishing, All rights reserved.

Publication Date

01 Sep 2016

Link to Full Text

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