Nonlinear energy transfer of drift-wave fluctuation in a cylindrical laboratory plasma

Yoshihiko Nagashima, Sanae I. Itoh, Shunjiro Shinohara, Masayuki Fukao, Akihide Fujisawa, Kenichiro Terasaka, Yoshinobu Kawai, Naohiro Kasuya, Masatoshi Yagi, Shigeru Inagaki, Takuma Yamada, Kimitaka Itoh

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Abstract

Nonlinear energy transfer of the drift-wave spectrumis investigated experimentally in a cylindrical laboratory plasma. Using the Hasegawa-Mima equation, the nonlinear transfer function of electrostatic potential energy in frequency space is estimated by bispectral analysis. The transfer function derived from the drift-wave spectrum indicates a forward cascading of energy transfer from fundamental to higher harmonic modes.

Original languageEnglish
Article number056
JournalPlasma and Fusion Research
Volume3
DOIs
Publication statusPublished - Jan 1 2008

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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