Fine positioning of a poloidal probe array

T. Yamada, Y. Nagashima, S. Inagaki, Y. Kawai, M. Yagi, S. I. Itoh, T. Maruta, S. Shinohara, K. Terasaka, M. Kawaguchi, M. Fukao, A. Fujisawa, K. Itoh

研究成果: ジャーナルへの寄稿記事

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Multipoint detection is an essential requirement for investigating plasma turbulence which is a highly nonlinear phenomenon in space and time. We have fabricated an array of 64-channel poloidal probes surrounding the linear cylindrical plasma named LMD-U in order to study turbulence properties, particularly the nonlinear mode couplings, in the domain of poloidal wave number and frequency. However, misalignments of probe tips produce spurious modes, which do not exist in the real plasma, to distort the precise wave number measurements. The paper presents the description of the 64-channel poloidal probe array with means to adjust the probe positions, with discussion on the effects of the misalignments on the wave number measurements.

元の言語英語
記事番号123501
ジャーナルReview of Scientific Instruments
78
発行部数12
DOI
出版物ステータス出版済み - 12 1 2007

    フィンガープリント

All Science Journal Classification (ASJC) codes

  • Instrumentation

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