Abstract.
The experimental apparatus for investigating the gas-surface interaction has been newly developed. The coherent length of the helium, the energy resolution and the angular spread of the beam in the apparatus were established as ω= 16 nm, \(\Delta E/E = 2.4{\%}\) and Δθ= 0.5○, respectively, through the measurements of the time-of-flight of He beam and of the angular intensity distributions of He scattered from LiF(001). The angular intensity distributions of Ar, N2 and CO scattered from the LiF(001) surface along the [100] azimuthal direction were then measured as a function of incident translational energy. The effects of the molecular structural anisotropy and center-of-mass position on the gas-surface inelastic collision at the corrugated surface are discussed with predictions based on a recently developed simple classical theory of the ellipsoid-washboard model.
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Kondo, T., Kato, H., Yamada, T. et al. Effect of the molecular structure on the gas-surface scattering studied by supersonic molecular beam. Eur. Phys. J. D 38, 129–138 (2006). https://doi.org/10.1140/epjd/e2005-00284-4
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DOI: https://doi.org/10.1140/epjd/e2005-00284-4
PACS.
- 68.49.Bc Atom scattering from surfaces (diffraction and energy transfer)
- 68.49.Df Molecule scattering from surfaces (energy transfer, resonances, trapping)
- 34.50.Dy Interactions of atoms and molecules with surfaces; photon and electron emission; neutralization of ions
- 68.49.-h Surface characterization by particle-surface scattering