Ionization-excitation of helium by fast charged particles

Authors

L. Nagy
J. WangFollow
Jack C. Straton, Portland State UniversityFollow
James H. McGuireFollow

Published In

Physical Review A

Document Type

Article

Publication Date

8-1-1995

Subjects

Electron impact ionization, Helium -- Electronic excitation, Ionization of gases

Abstract

Probabilities and cross sections for ionization plus excitation in helium produced by fast heavy-particle impact have been evaluated. In these calculations, contributions from shake-off, time ordering, and independent interactions of the frozen-target electrons with the projectile are included. A comparison is made to recent experimental observations for the ratio of excitation-ionization to single-ionization total cross sections. A comparison is also made to calculations of excitation-ionization by fast electron impact.

Description

Originally published in Physical Review A, Aug. 1995. Article may be found at http://pra.aps.org/

DOI

10.1103/PhysRevA.52.R902

Persistent Identifier

http://archives.pdx.edu/ds/psu/8997

Citation Details

Ionization-excitation of helium by fast, charged particles, L. Nagy, J. Wang, Jack C. Straton, and J. H. McGuire, Phys. Rev. A 52, R902 (1995).