Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
Volume 259, Issue 2, Pages 989-996Publisher
ELSEVIER
DOI: 10.1016/j.nimb.2007.03.054
Keywords
hydrogen; deuterium; ERDA hydrogen depth profiling; surface processes; adsorption
Ask authors/readers for more resources
A special cell was constructed for studying the interaction of hydrogen with materials. It enabled exposure of samples to a neutral hydrogen atmosphere and simultaneous concentration depth profiling of H and D. The concentration of individual hydrogen isotopes was measured by elastic recoil detection analysis (ERDA) using a 4.2 MeV Li-7(2+) probe beam. The measurements reported here were performed on Ti and W. The time evolution of processes occurring on the surface and in the bulk was studied by successive recording of ERDA spectra. For specific conditions in the cell a model describing adsorption and desorption of deuterium molecules on a W surface was proposed. Sticking and recombination coefficients were obtained by fitting the time evolution of deuterium concentration. (c) 2007 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available