Plasma and Fusion Research
Online ISSN : 1880-6821
ISSN-L : 1880-6821
Rapid Communications
Nonlinear Coupling of Drift Waves and High Frequency Fluctuation on PANTA
Kazunobu HASAMADAYusuke KOSUGAFumiyoshi KINSigeru INAGAKIYoshihiko NAGASHIMATatsuya KOBAYASHIMakoto SASAKINaohiro KASUYAKotaro YAMASAKISanae-I. ITOHKimitaka ITOHAkihide FUJISAWA
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2017 Volume 12 Pages 1201034

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Abstract

A new type of nonlinear coupling among multi-time scale of fluctuations is observed on the linear plasma device, PANTA. The low frequency drift waves (DWs), a few kHz and a high frequency fluctuation (the HF fluctuation) (∼ 30 kHz) are simultaneously observed. These fluctuations nonlinearly couple with each other confirmed by bi-coherence analysis. The characteristics of HF fluctuation are also discussed.

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© 2017 by The Japan Society of Plasma Science and Nuclear Fusion Research
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