Physics of Heliotron J Confinement

DOI HANDLE Web Site 4 Citations 19 References Open Access
  • SANO Fumimichi
    Institute of Advanced Energy, Kyoto University, Kyoto 611-0011, Japan
  • MIZUUCHI Tohru
    Institute of Advanced Energy, Kyoto University, Kyoto 611-0011, Japan
  • NAGASAKI Kazunobu
    Institute of Advanced Energy, Kyoto University, Kyoto 611-0011, Japan
  • HANATANI Kiyoshi
    Institute of Advanced Energy, Kyoto University, Kyoto 611-0011, Japan
  • OKADA Hiroyuki
    Institute of Advanced Energy, Kyoto University, Kyoto 611-0011, Japan
  • NAKAMURA Yuji
    Graduate School of Energy Science, Kyoto University, Kyoto 611-0011 , Japan
  • MINAMI Takashi
    Institute of Advanced Energy, Kyoto University, Kyoto 611-0011, Japan
  • KOBAYASHI Shinji
    Institute of Advanced Energy, Kyoto University, Kyoto 611-0011, Japan
  • YAMAMOTO Satoshi
    Institute of Advanced Energy, Kyoto University, Kyoto 611-0011, Japan
  • KONOSHIMA Shigeru
    Institute of Advanced Energy, Kyoto University, Kyoto 611-0011, Japan
  • OHSHIMA Shinsuke
    Kyoto University Pioneering Research Unit for Next Generation, Kyoto 611-0011, Japan
  • TAKEUCHI Masaki
    Institute of Advanced Energy, Kyoto University, Kyoto 611-0011, Japan
  • IJIRI Yoshiyuki
    Institute of Advanced Energy, Kyoto University, Kyoto 611-0011, Japan
  • YAGUCHI Keiji
    Institute of Advanced Energy, Kyoto University, Kyoto 611-0011, Japan
  • SENJU Tohru
    Institute of Advanced Energy, Kyoto University, Kyoto 611-0011, Japan
  • SHIBANO Masashi
    Institute of Advanced Energy, Kyoto University, Kyoto 611-0011, Japan
  • TOHSHI Kiyoshi
    Institute of Advanced Energy, Kyoto University, Kyoto 611-0011, Japan
  • SAKAMOTO Kinzou
    Institute of Advanced Energy, Kyoto University, Kyoto 611-0011, Japan
  • MATSUYAMA Akinobu
    Graduate School of Energy Science, Kyoto University, Kyoto 611-0011 , Japan
  • MUKAI Kiyofumi
    Graduate School of Energy Science, Kyoto University, Kyoto 611-0011 , Japan
  • MINAMI Keishi
    Graduate School of Energy Science, Kyoto University, Kyoto 611-0011 , Japan
  • KISHI Shintarou
    Graduate School of Energy Science, Kyoto University, Kyoto 611-0011 , Japan
  • LEE Hyunyong
    Graduate School of Energy Science, Kyoto University, Kyoto 611-0011 , Japan
  • TAKABATAKE Yu
    Graduate School of Energy Science, Kyoto University, Kyoto 611-0011 , Japan
  • YASHIRO Hiroaki
    Graduate School of Energy Science, Kyoto University, Kyoto 611-0011 , Japan
  • YAMAMOTO Kento
    Graduate School of Energy Science, Kyoto University, Kyoto 611-0011 , Japan
  • NOMURA Kohta
    Graduate School of Energy Science, Kyoto University, Kyoto 611-0011 , Japan
  • SUWA Masashige
    Graduate School of Energy Science, Kyoto University, Kyoto 611-0011 , Japan
  • YOSHINO Hayao
    Graduate School of Energy Science, Kyoto University, Kyoto 611-0011 , Japan
  • MURAKAMI Sadayoshi
    Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan
  • MUTOH Takashi
    National Institute for Fusion Science, Gifu 509-5292, Japan
  • TAKEIRI Yasuhiko
    National Institute for Fusion Science, Gifu 509-5292, Japan
  • NAGAOKA Kenichi
    National Institute for Fusion Science, Gifu 509-5292, Japan
  • OKAMURA Shoichi
    National Institute for Fusion Science, Gifu 509-5292, Japan
  • WATANABE Kiyomasa Y.
    National Institute for Fusion Science, Gifu 509-5292, Japan
  • YOKOYAMA Masayuki
    National Institute for Fusion Science, Gifu 509-5292, Japan
  • SUZUKI Yasuhiro
    National Institute for Fusion Science, Gifu 509-5292, Japan
  • YOSHIMURA Yasuo
    National Institute for Fusion Science, Gifu 509-5292, Japan
  • NISHIMURA Shin
    National Institute for Fusion Science, Gifu 509-5292, Japan
  • TAMURA Naoki
    National Institute for Fusion Science, Gifu 509-5292, Japan
  • SAKAKIBARA Satoru
    National Institute for Fusion Science, Gifu 509-5292, Japan
  • MOTOJIMA Gen
    National Institute for Fusion Science, Gifu 509-5292, Japan
  • NISHINO Nobuhiro
    Graduate School of Engineering, Hiroshima University, Hiroshima 739-8527, Japan
  • FUKUDA Takeshi
    Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan
  • NAKASHIMA Yousuke
    Plasma Research Center, University of Tsukuba, Ibaraki 305-8577, Japan
  • FENG Zhen
    Center for Fusion Science, Southwestern Institute of Physics, Sichuan 610041, China
  • YANG Qingwei
    Center for Fusion Science, Southwestern Institute of Physics, Sichuan 610041, China
  • FERNÁNDEZ Angela
    Laboratorio Nacional de Fusion, EURATOM-CIEMAT, 28040 Madrid, Spain
  • CAPPA Alvaro
    Laboratorio Nacional de Fusion, EURATOM-CIEMAT, 28040 Madrid, Spain
  • TRIBALDOS Victor
    Laboratorio Nacional de Fusion, EURATOM-CIEMAT, 28040 Madrid, Spain
  • BLACKWELL Boyd D.
    Australian National University, Canberra, Australia
  • CHECHKIN Viktor V.
    Institute of Plasma Physics, NSC KIP, 61108 Kharkov, Ukraine

Description

This paper reviews the results of an experimental study undertaken in Heliotron J over the past few years to explore the physics design base for a new concept of a helical-axis heliotron. Measurements of electron cyclotron resonance (ECR)/neutral beam injection (NBI)/ion cyclotron range of frequencies (ICRF) heating plasmas have been made for understanding global energy confinement in connection with the international stellarator scaling law (ISS04), spontaneous confinement improvement (L-H transition), confinement improvement based on supersonic molecular beam injection (SMBI), magnetohydrodynamic (MHD) activity, edge plasma characteristics, including rotation of a filamentary turbulence structure, and plasma current control, including the electron cyclotron current drive (ECCD), the energetic-particle driven Alfvén eigenmodes, and related fast ion dynamics. The results are discussed in terms of the rotational transform ι/2π and the bumpiness εb (or the effective helical ripple εeff). Control of these two parameters was experimentally demonstrated to be the key issue in determining the optimum performance of Heliotron J. The result confirms that the helical-axis heliotron provides a unique and high potential for exploiting an alternative and advanced path to future helical systems.

Journal

  • Plasma and Fusion Research

    Plasma and Fusion Research 5 S2003-S2003, 2010

    The Japan Society of Plasma Science and Nuclear Fusion Research

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