ANGULAR-DISTRIBUTION OF AUGER-ELECTRON EMISSION FOLLOWING DOUBLE-ELECTRON CAPTURE IN 90-KEV C-6++HE COLLISIONS

Authors
FREMONT F SOMMER K HICHAM S BODUCH P LECLER D STOLTERFOHT N
Citation
F. Fremont et al., ANGULAR-DISTRIBUTION OF AUGER-ELECTRON EMISSION FOLLOWING DOUBLE-ELECTRON CAPTURE IN 90-KEV C-6++HE COLLISIONS, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 79(1-4), 1993, pp. 3-7
Citations number
9
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
3 - 7
Database
ISI
SICI code
0168-583X(1993)79:1-4<3:AOAEFD>2.0.ZU;2-V
Abstract
Angular distributions of K-Auger-electrons ejected in 90-keV C6 +He co llisions were measured to determine cross sections for the production of the configurations 2lnl' (n greater-than-or-equal-to 3). Previous c ross sections obtained assuming isotropic Auger distributions were ver ified. For n = 5 and 6 the angular distributions were confirmed to be isotropic within the experimental uncertainties whereas anisotropic el ectron emission was observed for n = 3 and 4. The data yield revised c ross sections which are in good agreement with theoretical calculation s from Harel et al. The analysis of individual terms 2131' 1L shows th at the anisotropy is due to the highest angular momenta, and M = 0 sub states are preferentially populated.