Effects of the Collisional Damping on a Nonresonant Parametric Instability Near the Lower-Hybrid Frequency

Hiroshi Fujiyama, Masanori Akazaki, Yukio Watanabe

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

It is experimentally verified that the dominant region of the nonresonant ion-quasimode is 1ω0LH0: pump frequency, ωLH: lower-hybrid frequency), by controlling the linear Landau damping and the collisional damping of the parametric decay waves by varying neutral gas pressure, and this ion-quasimode have the maximum amplitude at the ratio [formula omitted]. The measured frequency, amplitude, and threshold of the low frequency decay wave are in good agreement with the Porkolab's theory of the nonresonant ion-quasimode including the effect of electron-neutral collisions.

Original languageEnglish
Pages (from-to)1981-1987
Number of pages7
Journaljournal of the physical society of japan
Volume49
Issue number5
DOIs
Publication statusPublished - Jan 1 1980

Fingerprint

damping
low frequencies
ions
Landau damping
neutral gases
decay
gas pressure
pumps
collisions
thresholds
electrons

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Effects of the Collisional Damping on a Nonresonant Parametric Instability Near the Lower-Hybrid Frequency. / Fujiyama, Hiroshi; Akazaki, Masanori; Watanabe, Yukio.

In: journal of the physical society of japan, Vol. 49, No. 5, 01.01.1980, p. 1981-1987.

Research output: Contribution to journalArticle

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