Neutralization of highly charged ions at grazing incidence on a metal surface

Journal Article · Fri Feb 01 04:00:00 EST 1991 · Physical Review, A; (USA)

DOI:https://doi.org/10.1103/PhysRevA.43.1405· OSTI ID:5831979

Zeijlmans van Emmichoven, P A ^[1]; Havener, C C; Meyer, F W ^[2]

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1. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6372 (US) Joint Institute for Heavy Ion Research, Holifield Heavy Ion Research Facility, Oak Facility, Oak Ridge, Tennessee 37831-6374 (USA)
2. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6372 (USA)

Electron energy spectra and total electron yields are studied to provide information on the neutralization of 24-keV N{sup {ital q}+} ions ({ital q}=2,4,6) incident at grazing angles on a Cu(100) surface. A computer simulation of the neutralization is presented that assumes resonant neutralization of the ions leading to highly excited hollow'' atoms. Deexcitation of these atoms is assumed to take place by purely intra-atomic Auger transitions. The results of this simulation are not in agreement with our experimental observations. A modified simulation, assuming again resonant neutralization of the ions followed by faster deexcitation processes, and, in addition, fast Auger deexcitation directly into the {ital L} shell, shows a much better agreement with the experimental observations.

• OSTI ID: 5831979
• Journal Information: Physical Review, A; (USA), Journal Name: Physical Review, A; (USA) Vol. 43:3; ISSN PLRAA; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

656003* -- Condensed Matter Physics-- Interactions between Beams & Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AUGER EFFECT
CHARGED PARTICLES
COLLISIONS
COMPUTERIZED SIMULATION
COPPER
ELECTRON SPECTRA
ELEMENTS
ENERGY RANGE
ION COLLISIONS
IONS
KEV RANGE
KEV RANGE 10-100
METALS
MULTICHARGED IONS
NITROGEN IONS
RECOMBINATION
SIMULATION
SPECTRA
TRANSITION ELEMENTS