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Observation of Ion Bombardment Damage in a Ni(100) Crystal by Helium Ion Injection

  • E. V. Kornelsen
  • D. E. EdwardsJr.

Abstract

Earlier papers (1) (2) have demonstrated that the entrapment of helium in tungsten is strongly dependent on the presence of lattice damage. It was concluded (2) that the entrapment proceeds via the interstitial diffusion of injected helium at room temperature, and that any helium atoms not encountering a defect during their diffusion escape through the surface. Considerations of helium ion penetration depths suggested that a trap concentration as low as ~10-9 should have been detectable when the bombardment area was about 0.1 cm2.

Keywords

Helium Atom Lattice Damage Desorption Spectrum Nickel Crystal Sensitive Mass Spectrometer 
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References

  1. 1).
    K. Erents, G. Farrell and G. Carter. Proc. 4th Int. Vac. Congress (Institute of Physics and Physical Society, London) p.145 (1968).Google Scholar
  2. 2).
    E.V. Kornelsen, Can. J. Phys. 48, 2812 (1970).CrossRefGoogle Scholar
  3. 3).
    E.V. Kornelsen, Radiation Effects 13, 227 (1972).CrossRefGoogle Scholar
  4. 4).
    P.G. Lucasson and R.M. Walker. Phys. Rev. 127, 485 (1962).CrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1974

Authors and Affiliations

  • E. V. Kornelsen
    • 1
  • D. E. EdwardsJr.
    • 1
  1. 1.Radio and Electrical Engineering DivisionNational Research CouncilOttawaCanada

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