Inelastic Gas-Surface Scattering. I. Formalism.

Abstract

A method is presented for calculating elastic and inelastic scattering probabilities for light particles, such as helium and molecular hydrogen, scattering from surfaces with which they weakly interact. The method is a unitary one-phonon approximation in which the scattering probabilities are calculated from thermally averages amplitudes which are generated numerically. The thermal averaging procedure is more general than this application and could be applied to other systems with weak inelastic scattering. An approximation for the gas surface interaction potential is discussed that can greatly simplify calculations where it is applicable. Finally some preliminary results are presented using this method to study rotationally mediated selective adsorption resonances in HD scattering from copper.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1982
Accession Number
ADA168730

Entities

People

  • John W. Wilkins
  • Mark D. Stiles

Organizations

  • Cornell Laboratory of Atomic and Solid State Physics

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Angular Momentum
  • Born Approximations
  • Coefficients
  • Delta Functions
  • Differential Equations
  • Diffraction
  • Elastic Scattering
  • Equations Of Motion
  • Frequency
  • Gas Surface Interactions
  • Inelastic Scattering
  • Momentum
  • Physics
  • Plane Waves
  • Scattering
  • Solid State Physics
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Molecular Photonics/Laser Physics
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.