Detection of Cascading in Drift Wave Turbulence Using Probe Array in Linear Plasmas

Takuma YAMADA; Sanae -I. ITOH; Takashi MARUTA; Shunjiro SHINOHARA; Naohiro KASUYA; Yoshihiko NAGASHIMA; Masatoshi YAGI; Kenichiro TERASAKA; Masato KAWAGUCHI; Shigeru INAGAKI; Yoshinobu KAWAI; Masayuki FUKAO; Akihide FUJISAWA; Kimitaka ITOH

doi:10.1585/pfr.2.051

Rapid Communications

Detection of Cascading in Drift Wave Turbulence Using Probe Array in Linear Plasmas

Takuma YAMADA, Sanae -I. ITOH, Takashi MARUTA, Shunjiro SHINOHARA, Naohiro KASUYA, Yoshihiko NAGASHIMA, Masatoshi YAGI, Kenichiro TERASAKA, Masato KAWAGUCHI, Shigeru INAGAKI, Yoshinobu KAWAI, Masayuki FUKAO, Akihide FUJISAWA, Kimitaka ITOH

著者情報

キーワード: linear plasma, drift wave, turbulence, cascading process, non-mode excitation, broadband fluctuation

ジャーナルフリー

2007 年 2 巻 p. 051

DOI https://doi.org/10.1585/pfr.2.051

詳細

抄録

Measurement of drift wave turbulence using multi-probe systems was performed in the Large Mirror Device-Upgrade linear plasma. We compared a drift wave's two-dimensional (poloidal wave number and frequency) power spectrum with its calculated linear dispersion relation. As a result, a few wave modes that satisfy the linear dispersion relation were observed. Moreover, cascades to non-mode peaks and broadband components that do not satisfy the dispersion relation were identified.

責任著者(Corresponding author)

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