Parametric decay into ion cyclotron waves and drift waves in multi-ion species plasma

M. Ono*, M. Porkolab, R. P H Chang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


Parametric decay processes near the ion cyclotron frequency are investigated experimentally and theoretically in multi-ion species plasmas. The relevant theoretical dispersion relation of the parametric coupling is derived, including the ion drift motion. Experimental data obtained in the Princeton L-4 device verify these theoretical predictions in some detail. In a helium-neon plasma, the relative ion drift motion excites electrostatic ion cyclotron waves (the kinetic ion-ion hybrid mode) when ω0 > ΩHe + ΩNe- In a region of large density gradient, the ion drift motion also excites low-frequency drift waves when ω0He + ω*. The experimental data are found to agree well with the theory. The relevance of these processes to ion cyclotron heating of fusion plasmas is discussed.

Original languageEnglish (US)
Pages (from-to)1656-1674
Number of pages19
JournalPhysics of Fluids
Issue number8
StatePublished - 1980

ASJC Scopus subject areas

  • Computational Mechanics
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes


Dive into the research topics of 'Parametric decay into ion cyclotron waves and drift waves in multi-ion species plasma'. Together they form a unique fingerprint.

Cite this