Comparative Study of Surface-lattice-site Resolved Neutralization of Slow Multicharged Ions during Large-angle Quasi-binary Collisions with Au(110): Simulation and Experiment
In this article we extend our earlier studies of the azimuthal dependences of low energy projectiles scattered in large angle quasi-binary collisions from Au(110). Measurements are presented for 20 keV Ar{sup 9+} at normal incidence, which are compared with our earlier measurements for this ion at 5 keV and 10{sup 0} incidence angle. A deconvolution procedure based on MARLOWE simulation results carried out at both energies provides information about the energy dependence of projectile neutralization during interactions just with the atoms along the top ridge of the reconstructed Au(110) surface corrugation, in comparison to, e.g., interactions with atoms lying on the sidewalls. To test the sensitivity of the agreement between the MARLOWE results and the experimental measurements, we show simulation results obtained for a non-reconstructed Au(110) surface with 20 keV Ar projectiles, and for different scattering potentials that are intended to simulate the effects on scattering trajectory of a projectile inner shell vacancy surviving the binary collision, In addition, simulation results are shown for a number of different total scattering angles, to illustrate their utility in finding optimum values for this parameter prior to the actual measurements.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 786486
- Report Number(s):
- P01-111668; TRN: US0200481
- Resource Relation:
- Journal Volume: 193; Journal Issue: 1-4; Conference: International Conference on Atomic Collisions in Solids, Orsay (FR), 07/29/2001--08/03/2001; Other Information: PBD: 24 Aug 2001
- Country of Publication:
- United States
- Language:
- English
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