SEARCH FOR FERMI SHUTTLE MECHANISMS IN ELECTRON-EMISSION FROM ATOMIC COLLISION SEQUENCES

Authors
SUAREZ S BERNARDI G FOCKE P MECKBACH W TOBISCH M JUNG M ROTHARD H SCHOSNIG M MAIER R CLOUVAS A GROENEVELD KO
Citation
S. Suarez et al., SEARCH FOR FERMI SHUTTLE MECHANISMS IN ELECTRON-EMISSION FROM ATOMIC COLLISION SEQUENCES, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 86(1-2), 1994, pp. 197-200
Citations number
22
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
86
Issue
1-2
Year of publication
1994
Pages
197 - 200
Database
ISI
SICI code
0168-583X(1994)86:1-2<197:SFFSMI>2.0.ZU;2-C
Abstract
In electron spectra induced by slow heavy ion bombardment of solids a high energy tail can be observed, which is suggested to be explained b y multiple collision sequences. In order to find those multiple collis ion effects like the ''Fermi shuttle'' acceleration mechanism we measu red doubly differential electron emission cross sections for H+ (33.5- 700 keV) impact on different targets (He, Ne, C and Au) as a function of projectile energy and electron emission angle. We observed a surpri sing target dependence of the electron emission within the range of el ectron energies close to that of the binary encounter electrons for al l observed angles of emission.