Observation of nonlinear coupling between low frequency coherent modes and background turbulence in LMD-U

Tatsuya Kobayashi, Shigeru Inagaki, Hiroyuki Arakawa, Stella Oldenbürger, Makoto Sasaki Nagashima, Takuma Yamada, Satoru Sugita, Masatoshi Yagi, Naohiro Kasuya, Akihide Fujisawa, Sanae I. Itoh, Kimitaka Itoh

研究成果: ジャーナルへの寄稿記事

抜粋

A solitary wave like fluctuating structure is observed in the Large Mirror Device-Upgrade (LMD-U) under relatively high neutral pressure conditions. Ion saturation current fluctuations are measured and Fourier and wavelet power spectra are calculated. Temporal behavior of fluctuation power and strength of nonlinear coupling of low frequency coherent mode and background turbulence in a specific frequency region is analyzed. This is achieved using wavelet spectral and bispectral analyses with conditional averaging.

元の言語英語
記事番号2403082
ジャーナルPlasma and Fusion Research
6
発行部数1 SPECIAL ISSUE
DOI
出版物ステータス出版済み - 12 1 2011

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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