SCATTERING OF H AT NI SURFACES - CHARGE-EXCHANGE AND ENERGY-LOSS

Autor(en): NARMANN, A
FRANKE, H
SCHMIDT, K
ARNAU, A
HEILAND, W
Stichwörter: Instruments & Instrumentation; IONS; METAL-SURFACES; Nuclear Science & Technology; Physics; Physics, Atomic, Molecular & Chemical; Physics, Nuclear; STOPPING POWER
Erscheinungsdatum: 1992
Herausgeber: ELSEVIER SCIENCE BV
Journal: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
Volumen: 69
Ausgabe: 1
Startseite: 158
Seitenende: 163
Zusammenfassung: 
Hydrogen is scattered at grazing incidence from Ni(111) and Ni(110) surfaces. Significant differences are found in the energy loss and the energy loss straggling as a function of the primary energy between 300 eV and 5 keV. The energy losses of the different exiting charge states H0, H+, H- for incident H+ when scattered from Ni(110) are equal, so is the energy loss straggling for H0 and H-. The straggling of exiting H+ is enhanced. The charge state fractions as a function of the particle energy agree with previous findings, i.e. the H+ yield increases with energy and the H- yield exhibits a flat maximum at about 3 keV. A theoretical model which accounts for all three charge states and reproduces the experimental findings is proposed.
Beschreibung: 
WORKSHOP ON STOPPING OF LOW-Z AND HIGH-Z IONS ( STOP-91 ), MIDDELFART, DENMARK, AUG 06-09, 1991
ISSN: 0168583X
DOI: 10.1016/0168-583X(92)95754-F

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