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Factors which Affect Peak Shapes and Areas in Ion Scattering Spectroscopy

  • Orlando Melendez
  • Gar B. Hoflund
  • Richard E. Gilbert
  • Vaneica Y. Young
Part of the NATO ASI Series book series (NSSB, volume 265)

Abstract

This study is a further attempt to understand how experimental factors influence signal intensities and peak shapes in ion scattering spectroscopy (ISS). Different inert gases and mixtures have been scattered off polycrystalline Pt and Cu using primary beam energies ranging from 500 to 2000 eV. The ISS signal intensities decreases significantly as the primary beam energy decreases or as the mass of the scattering ion increases. This fact is consistent with the assertion that the neutralization probability increases as the period of time that an ion spends near a metallic surface increases. The influence of isotopic distribution of the scattering gas on ISS peak shape is also examined using mixtures of 20Ne+ and 22Ne+.

Keywords

Calculated Spectrum Isotopic Distribution Isotopic Mixture Primary Beam Energy Cylindrical Mirror Analyzer 
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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    V.Y. Young and G.B. Hoflund, Anal. Chem 60(1988) 269.CrossRefGoogle Scholar
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    V.Y. Young, G.B. Hoflund and A.C. Miller, Surface Sci. 235 (1990) 60.CrossRefGoogle Scholar
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    G.C. Nelson, J. Vac. Sci. Technol. A2(1986)1567.Google Scholar
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    T.M. Buck in Methods of Surface Analysis edited by A.C. Czanderna, Elsevier, Amsterdam 75(1975)75.Google Scholar

Copyright information

© Plenum Press, New York 1991

Authors and Affiliations

  • Orlando Melendez
    • 1
  • Gar B. Hoflund
    • 1
  • Richard E. Gilbert
    • 2
  • Vaneica Y. Young
    • 3
  1. 1.Department of Chemical EngineeringUniversity of FloridaGainesvilleUSA
  2. 2.Department of Chemical EngineeringUniversity of NebraskaLincolnUSA
  3. 3.Department of ChemistryUniversity of FloridaGainesvilleUSA

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