Potential Measurement with the 6-MeV Heavy Ion Beam Probe of LHD

DOI IR HANDLE Web Site 4 Citations 19 References
  • SHIMIZU Akihiro
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • IDO Takeshi
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • NISHIURA Masaki
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • NAKAMURA Shigetoshi
    Department of Energy Science and Engineering, Nagoya University, Nagoya 464-8603, Japan
  • NAKANO Harushisa
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • OHSHIMA Shinsuke
    Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
  • NISHIZAWA Akimitsu
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • YOKOYAMA Masayuki
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • YOSHIMURA Yasuo
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • KUBO Shin
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • SHIMOZUMA Takashi
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • IGAMI Hiroe
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • TAKAHASHI Hiromi
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • TAMURA Naoki
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • YAMADA Ichihiro
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • MINAMI Takashi
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • NARIHARA Kazumichi
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • AKIYAMA Tsuyoshi
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • TOKUZAWA Tokihiko
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • TANAKA Kenji
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • KAWAHATA Kazuo
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • TOI Kazuo
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • ISOBE Mitsutaka
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • WATANABE Fumitake
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • OGAWA Kunihiro
    Department of Energy Science and Engineering, Nagoya University, Nagoya 464-8603, Japan
  • NAGAOKA Kenichi
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • IKEDA Katsunori
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • OSAKABE Masaki
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • TSUMORI Katsuyoshi
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • TAKEIRI Yasuhiko
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • KANEKO Osamu
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • KATO Shinji
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • YOKOTA Mitsuhiro
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • HAMADA Yasuji
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
  • LHD Group
    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan

Abstract

The potential in the plasma core of the Large Helical Device (LHD) was measured with the 6 MeV Heavy Ion Beam Probe (HIBP). The radial profile of the potential in the region where the normalized minor radius, ρ, is less than 0.5 was measured and the electric field obtained from the fitting function of the experimental data was compared with that calculated from neoclassical ambipolarity. The experimental results coincide well with the theoretical calculations. Negative pulses were observed in the potential signal in the inward shifted magnetic configuration. The time constants of these pulses were less than the energy confinement time. Potential fluctuations of the coherent modes were also observed, and one of their frequencies coincided with the geodesic acoustic mode (GAM). In this report, the present status of potential measurements with the HIBP system in LHD is described.

Journal

  • Plasma and Fusion Research

    Plasma and Fusion Research 5 (0), S1015-S1015, 2010

    The Japan Society of Plasma Science and Nuclear Fusion Research

Citations (4)*help

See more

References(19)*help

See more

Related Projects

See more

Keywords

Details 詳細情報について

Report a problem

Back to top