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Effect of Multiple Scattering and Thermal Vibrations on the Reflection of Ions from the Face of a Single Crystal

  • É. S. Parilis
  • N. Yu. Turaev
  • V. M. Kivilis

Abstract

The characteristics of the two-fold collision peaks in the energy spectrum of ions reflected from the face of a single crystal in a specified direction were calculated in earlier papers [1–3]. Later [4] a model based on scattering by two neighboring atoms was used in order to show that, as a result of the mutual screening of these atoms, both minimum and maximum angles of reflection should exist. However, the two-atom scattering model is imprecise. For glancing incidence on the face of a single crystal in a plane passing through a direction of close packing, the ion suffers a number of successive collisions with series of atoms forming chains in the crystal lattice. The parameters of each successive collision are determined by those of all the preceding collisions. A direct calculation of collisions of this kind for chains consisting of immovable atoms gives an unexpected result [5]. The energy spectrum of the ions reflected in a specific direction as a result of five or ten collisions also contains the peaks of “single” and “double” collisions, the single ones constituting the result of a single strong and a large number of weak collisions, while the double ones consist of two successive relatively strong and a number of weak collisions.

Keywords

Energy Spectrum Multiple Scattering Neighboring Atom Thermal Vibration Lattice Atom 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Consultants Bureau, New York 1971

Authors and Affiliations

  • É. S. Parilis
  • N. Yu. Turaev
  • V. M. Kivilis

There are no affiliations available

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