Nonlinear coupling of driftwaves and high frequency fluctuation on PANTA

Kazunobu Hasamada, Yusuke Kosuga, Fumiyoshi Kin, Sigeru Inagaki, Yoshihiko Nagashima, Tatsuya Kobayashi, Makoto Sasaki, Naohiro Kasuya, Kotaro Yamasaki, Sanae I. Itoh, Kimitaka Itoh, Akihide Fujisawa

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Article number1201034
JournalPlasma and Fusion Research
Volume12
DOIs
Publication statusPublished - 2017

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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