論文

査読有り
2013年11月

Stabilization of energetic-ion-driven MHD modes by ECCD in Heliotron J

NUCLEAR FUSION
  • K. Nagasaki
  • S. Yamamoto
  • S. Kobayashi
  • K. Sakamoto
  • Y. Nagae
  • Y. Sugimoto
  • Y. I. Nakamura
  • G. Weir
  • N. Marushchenko
  • T. Mizuuchi
  • H. Okada
  • T. Minami
  • K. Masuda
  • S. Ohshima
  • S. Konoshima
  • N. Shi
  • Y. Nakamura
  • H. Y. Lee
  • L. Zang
  • S. Arai
  • H. Watada
  • H. Fukushima
  • K. Hashimoto
  • N. Kenmochi
  • G. Motojima
  • Y. Yoshimura
  • K. Mukai
  • F. Volpe
  • T. Estrada
  • F. Sano
  • 全て表示

53
11
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1088/0029-5515/53/11/113041
出版者・発行元
IOP PUBLISHING LTD

Second harmonic electron cyclotron current drive (ECCD) has been applied in the stellarator/heliotron (S/H) device, Heliotron J, to stabilize magnetohydrodynamic (MHD) modes. The energetic particle mode (EPM) of 60-90 kHz frequency, one of the energetic-ion-driven MHD modes, is excited in a plasma heated by co- and counter-neutral beam injection and electron cyclotron heating (ECH). The EPM has been stabilized by counter-ECCD which decreases the rotational transform. Localized EC current driven by a few kA at the central region modifies the rotational transform profile, iota/2 pi, leading to the formation of a high magnetic shear at the radius where the mode is excited. An experiment scanning the EC-driven current shows that there is a threshold in magnetic shear and/or rotational transform to stabilize the EPM.

リンク情報
DOI
https://doi.org/10.1088/0029-5515/53/11/113041
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000326684400042&DestApp=WOS_CPL
ID情報
  • DOI : 10.1088/0029-5515/53/11/113041
  • ISSN : 0029-5515
  • eISSN : 1741-4326
  • Web of Science ID : WOS:000326684400042

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