DEGRADATION OF POLYSTYRENE THIN-FILMS UNDER D, HE-4 AND C-12 IRRADIATION STUDIED BY ION-BEAM ANALYSIS - EFFECTS OF ENERGY-LOSS, SAMPLE THICKNESS AND ISOTOPIC CONTENT

Authors
ABEL F QUILLET V SCHOTT M
Citation
F. Abel et al., DEGRADATION OF POLYSTYRENE THIN-FILMS UNDER D, HE-4 AND C-12 IRRADIATION STUDIED BY ION-BEAM ANALYSIS - EFFECTS OF ENERGY-LOSS, SAMPLE THICKNESS AND ISOTOPIC CONTENT, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 105(1-4), 1995, pp. 86-90
Citations number
14
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
105
Issue
1-4
Year of publication
1995
Pages
86 - 90
Database
ISI
SICI code
0168-583X(1995)105:1-4<86:DOPTUD>2.0.ZU;2-R
Abstract
Changes in atomic composition (C, H and D) of thin polystyrene films u nder d, He-4 or C-12 irradiations were studied by nuclear reaction ana lysis (NRA) and elastic recoil detection analysis (ERDA) for ion energ ies between 150 and 2500 keV, corresponding to stopping powers 5 to 10 4 eV/Angstrom. A multiscale setup was used to study atomic losses in r eal lime during irradiation. It was shown that the first ion interacti ng with previously unirradiated polymer already produces matter losses ; that no stable limit state exists at high doses; that there is a ste ep increase of losses above dE/dx approximate to 35 eV/Angstrom for th e ions studied; that losses are thickness dependent; that H losses are always larger than D ones, without any influence of initial chemical bonding of these atoms. These results are briefly discussed.