DEVIATION OF THE BINARY ENCOUNTER ELECTRON-ENERGY FROM SIMPLE CONSERVATION-LAWS IN ION-ATOM AND IN ION-SOLID COLLISIONS

Authors
KRONEBERGER K KUZEL M MAIER R SCHOSNIG M FIEDLER C TOBISCH M JUNG M SUAREZ S GROENEVELD KO
Citation
K. Kroneberger et al., DEVIATION OF THE BINARY ENCOUNTER ELECTRON-ENERGY FROM SIMPLE CONSERVATION-LAWS IN ION-ATOM AND IN ION-SOLID COLLISIONS, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 93(2), 1994, pp. 142-148
Citations number
21
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
93
Issue
2
Year of publication
1994
Pages
142 - 148
Database
ISI
SICI code
0168-583X(1994)93:2<142:DOTBEE>2.0.ZU;2-1
Abstract
We have measured electron energy spectra from fast (0.4-2.0 MeV/u) lig ht projectiles (H+, He+, H-2+, H-3+, H-0) impinging on gaseous (He, Ar and Kr) and solid (C, Cu, Au, 600 angstrom) targets under observation angles of O-degrees less-than-or-equal-to THETA less-than-or-equal-to 50-degrees and THETA = 110-degrees, 120-degrees, 180-degrees. Major i nterest was directed upon the position of the binary encounter and ele ctron loss peaks, which are commonly assumed to follow simple kinemati cs. However, our measurements confirm recent results which show that t he peaks are significantly shifted towards lower energies. For compari son we calculated double differential electron emission cross sections with different theoretical approaches.