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

R. E. Slusher, C. M. Surko, C. A. Murray

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)755-767
Number of pages13
JournalJournal of Statistical Physics
Volume39
Issue number5-6
DOIs
StatePublished - Jun 1985
Externally publishedYes

Keywords

  • ion-acoustic waves
  • Light scattering
  • plasma instability

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Mathematical Physics

Fingerprint

Dive into the research topics of 'Light scattering studies of the ion acoustic instability in a positive column plasma'. Together they form a unique fingerprint.

Cite this