Title

Excitation-Ionization of Helium to He+ (n = 2) at 365.8 eV

Abstract

A second Born calculation of the (e, 2e) triple differential cross section for excitation-ionization of helium to He+(n = 2) in coplanar asymmetric geometry is found to be in excellent agreement with recent (relative) measurements of Rouvellou et al. The second Born cross section is very much larger, by about a factor of four, than the corresponding first Born cross section, a trend that is consistent with absolute total cross section measurements for ionization to He+ (2p) at the same impact energy.

Department(s)

Physics

Keywords and Phrases

Atomic physics; Electron energy levels; Ionization of gases; Kinetic energy; Coplanar asymmetric geometry; Helium

International Standard Serial Number (ISSN)

0953-4075

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2000 Institute of Physics - IOP Publishing, All rights reserved.

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