Correlation between Low-Frequency Fluctuations and Plasma Stored Energy in GAMMA 10

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Author(s)

    • MIYATA Yoshiaki
    • Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
    • YOSHIKAWA Masayuki
    • Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
    • YAGUCHI Fumiaki
    • Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
    • ICHIMURA Makoto
    • Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
    • MURAKAMI Tatsuya
    • Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
    • IMAI Tsuyoshi
    • Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan

Abstract

The instabilities observed in many magnetic confinement devices induce radial particle transport. Density and potential fluctuations were measured using a gold neutral beam probe in GAMMA 10. The plasma stored energy repeatedly increases and decreases during ion- cyclotron range of frequency heating. A drift-type fluctuation was observed in both the density and the potential as the plasma stored energy decreased. These results indicated a correlation between the radial particle transport induced by drift-type fluctuations and decreasing plasma stored energy.

Journal

  • Plasma and Fusion Research

    Plasma and Fusion Research (5), 033-033, 2010

    The Japan Society of Plasma Science and Nuclear Fusion Research

Codes

  • NII Article ID (NAID)
    130000442407
  • Text Lang
    ENG
  • Data Source
    J-STAGE 
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