THEORETICAL-ANALYSIS OF IONIZATION PLUS EXCITATION OF HELIUM BY FAST-ELECTRON AND PROTON IMPACT

Authors
AMUSIA MY RAUSCHER EA BRUCH R FULLING S
Citation
My. Amusia et al., THEORETICAL-ANALYSIS OF IONIZATION PLUS EXCITATION OF HELIUM BY FAST-ELECTRON AND PROTON IMPACT, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 79(1-4), 1993, pp. 117-119
Citations number
7
Categorie Soggetti
Physics, Nuclear","Nuclear Sciences & Tecnology","Instument & Instrumentation
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
79
Issue
1-4
Year of publication
1993
Pages
117 - 119
Database
ISI
SICI code
0168-583X(1993)79:1-4<117:TOIPEO>2.0.ZU;2-5
Abstract
We have applied theoretical many-body techniques to analyze our experi mental ionization-excitation cross sections for fast e-+He and H++He-c ollisions. By using the main first-order, second-order and interferenc e cross terms we have derived an approximate value for the cross secti on ratio sigma+(e-)/sigma+*(H+) for He+(2p) which is in good agreemen t with experiment.