Observations of Intermittent Structures in the Periphery of a Cylindrical Linear Plasma in PANTA

Access this Article

Author(s)

    • OHYAMA Noriko
    • Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
    • YAMADA Soutaro
    • Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
    • YAMADA Takuma
    • Itoh Research Center for Plasma Turbulence, Kyushu University|Graduate School of Frontier Sciences, The University of Tokyo
    • YAGI Masatoshi
    • Itoh Research Center for Plasma Turbulence, Kyushu University|Japan Atomic Energy Agency
    • KASUYA Naohiro
    • Itoh Research Center for Plasma Turbulence, Kyushu University|National Institute for Fusion Science
    • SASAKI Makoto
    • Research Institute for Applied Mechanics, Kyushu University|Itoh Research Center for Plasma Turbulence, Kyushu University
    • ITOH Sanae-I.
    • Research Institute for Applied Mechanics, Kyushu University|Itoh Research Center for Plasma Turbulence, Kyushu University
    • ITOH Kimitaka
    • Itoh Research Center for Plasma Turbulence, Kyushu University|National Institute for Fusion Science
    • FUJISAWA Akihide
    • Research Institute for Applied Mechanics, Kyushu University|Itoh Research Center for Plasma Turbulence, Kyushu University
    • INAGAKI Shigeru
    • Research Institute for Applied Mechanics, Kyushu University|Itoh Research Center for Plasma Turbulence, Kyushu University
    • NAGASHIMA Yoshihiko
    • Research Institute for Applied Mechanics, Kyushu University|Itoh Research Center for Plasma Turbulence, Kyushu University
    • KOBAYASHI Tatsuya
    • Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
    • TOBIMATSU Yuuki
    • Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
    • YAMASHITA Tetsuo
    • Interdisciplinary Graduate School of Engineering Sciences, Kyushu University

Abstract

Intermittent pulse events have been observed in the periphery of the linear cylindrical plasmas produced in Plasma Assembly for Nonlinear Turbulence Analysis (PANTA). A novel combination of 32 azimuthal and 3 radial probes enables us to obtain 32 × 3 = 96 pairs of correlations simultaneously. The two-dimensional (2D) correlation analysis shows that the intermittent structure is well correlated with quasi-periodic bursts inside the plasma, and it reveals that the intermittent pulse is caused by the passage of a radially elongated and azimuthally distorted localized structure rotating in the ion diamagnetic direction.

Journal

  • Plasma and Fusion Research

    Plasma and Fusion Research 7(0), 1201025-1201025, 2012

    The Japan Society of Plasma Science and Nuclear Fusion Research

Codes

Page Top