PARTICLE-EMISSION INDUCED BY IONIZATION TRACKS IN WATER ICE

Authors
SHI M GROSJEAN DE SCHOU J BARAGIOLA RA
Citation
M. Shi et al., PARTICLE-EMISSION INDUCED BY IONIZATION TRACKS IN WATER ICE, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 96(3-4), 1995, pp. 524-529
Citations number
39
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
96
Issue
3-4
Year of publication
1995
Pages
524 - 529
Database
ISI
SICI code
0168-583X(1995)96:3-4<524:PIBITI>2.0.ZU;2-6
Abstract
We study electron emission and sputtering during irradiation of amorph ous water ice at 60 K by H+, D+, He+, Li+, Be+, B+, C+, N+, O+, F+, an d Ne+ ions in the energy range from 10 to 100 keV. We find that for co nstant velocity (5 keV/amu); ions the dependence of the sputtering yie lds with projectile atomic number Z is proportional to the square of t he Z-dependence of the electronic stopping power dE/dx, using dE/dx va lues predicted by Yarlagadda, Robinson, and Brandt. The electron yield s increase sublinearly with dE/dx, indicating the strong influence of un-neutralized holes in the ionization track produced by the projectil es.