Advertisement

Journal of Statistical Physics

, Volume 39, Issue 5–6, pp 755–767 | Cite as

Light scattering studies of the ion acoustic instability in a positive column plasma

  • R. E. Slusher
  • C. M. Surko
  • C. A. Murray
Article

Abstract

Light scattering is used to study the amplitude, spectrum, and angular distribution of the saturated state of the ion acoustic instability in a He positive column plasma. The ion acoustic waves are driven unstable by the electron current in the column. The properties of the saturated state are studied as a function of the concentration of hydrogen impurities which are found to be present in positive column plasmas. At concentrations of a few percent, the hydrogen ions can cause linear wave damping. Their role in saturating the instability by nonlinear processes is studied by varying the hydrogen concentration.

Key words

Light scattering plasma instability ion-acoustic waves 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    M. Yamada and M. Raether,Phys. Fluids 18:361 (1975).Google Scholar
  2. 2.
    D. B. Ilić,Phys. Fluids 20:1717 (1977).Google Scholar
  3. 3.
    R. L. Stenzel,Phys. Fluids 21:93, 99 (1978).Google Scholar
  4. 4.
    W. Gekelman and R. L. Stenzel,Phys. Fluids 21:609 (1978).Google Scholar
  5. 5.
    R. E. Slusher, C. M. Surko, D. R. Moler, and M. Porkolab,Phys. Rev. Lett. 36:674 (1976).Google Scholar
  6. 6.
    R. E. Slusher and C. M. Surko,Phys. Fluids 23:472 (1980).Google Scholar
  7. 7.
    W. Horton, Jr. and D. Choi,Phys. Rep. 49:273 (1979).Google Scholar
  8. 8.
    D. Biskamp and R. Chadura,Plasma Physics and Controlled Nuclear Fusion Research, Vol. 2 (IAEA, Vienna, 1971), p. 265;Phys. Rev. Lett. 27:1553 (1971).Google Scholar
  9. 9.
    E. L. Lindman,J. Phys. (Paris) 38:9 (1977) (Collogue 66).Google Scholar
  10. 10.
    I. Alexeff, W. D. Jones, and D. Montgomery,Phys. Rev. Lett. 19:422 (1967).Google Scholar
  11. 11.
    A. Sleeper, J. Weinstock, and B. Bezzerides,Phys. Fluids 16:1508 (1973).Google Scholar
  12. 12.
    K. Nishikawa and C. S. Wu,Phys. Rev. Lett. 23:1020 (1969).Google Scholar

Copyright information

© Plenum Publishing Corporation 1985

Authors and Affiliations

  • R. E. Slusher
    • 1
  • C. M. Surko
    • 1
  • C. A. Murray
    • 1
  1. 1.AT&T Bell LaboratoriesMurray Hill

Personalised recommendations