...
首页> 外文期刊>Nuclear fusion >Observations of core toroidal rotation reversals in Alcator C-Mod ohmic L-mode plasmas
【24h】

Observations of core toroidal rotation reversals in Alcator C-Mod ohmic L-mode plasmas

机译:Alcator C-Mod欧姆L-模式等离子体中核心环面旋转反转的观察

获取原文
获取原文并翻译 | 示例
           

摘要

Direction reversals of intrinsic toroidal rotation have been observed in Alcator C-Mod ohmic L-mode plasmas following modest electron density or toroidal magnetic field ramps. The reversal process occurs in the plasma interior, inside of the q = 3/2 surface. For low density plasmas, the rotation is in the co-current direction, and can reverse to the counter-current direction following an increase in the electron density above a certain threshold. Reversals from the co- to counter-current direction are correlated with a sharp decrease in density fluctuations with k_R≥ 2 cm~(-1) and with frequencies above 70 kHz. The density at which the rotation reverses increases linearly with plasma current, and decreases with increasing magnetic field. There is a strong correlation between the reversal density and the density at which the global ohmic L-mode energy confinement changes from the linear to the saturated regime.
机译:在Alcator C-Mod欧姆L型等离子体中,随着中等电子密度或环形磁场的倾斜,观察到了固有环形旋转的方向反转。逆过程发生在q = 3/2表面内部的等离子体内部。对于低密度等离子体,旋转方向是顺流方向,并且在电子密度增加到某个阈值以上之后,旋转方向可以逆向。从顺流方向到逆流方向的逆转与k_R≥2 cm〜(-1)且频率高于70 kHz的密度波动的急剧减小相关。旋转反向的密度随等离子电流线性增加,而随磁场增加而减小。反向密度与整体欧姆L型能量约束从线性状态变化到饱和状态的密度之间具有很强的相关性。

著录项

  • 来源
    《Nuclear fusion》 |2011年第8期|p.6.1-6.12|共12页
  • 作者单位

    Plasma Science and Fusion Center, MIT, Cambridge, MA, USA;

    Ecole Polytechnique Federate de Lausanne, Centre de Recherches en Physique des Plasmas,Lausanne, Switzerland;

    Plasma Science and Fusion Center, MIT, Cambridge, MA, USA;

    Plasma Science and Fusion Center, MIT, Cambridge, MA, USA;

    Ecole Polytechnique Federate de Lausanne, Centre de Recherches en Physique des Plasmas,Lausanne, Switzerland,Currently at University of California, Irvine, CA, USA;

    Plasma Science and Fusion Center, MIT, Cambridge, MA, USA;

    Plasma Science and Fusion Center, MIT, Cambridge, MA, USA;

    University of California, San Diego, La Jolla, CA, USA;

    Plasma Science and Fusion Center, MIT, Cambridge, MA, USA;

    Plasma Science and Fusion Center, MIT, Cambridge, MA, USA;

    Plasma Science and Fusion Center, MIT, Cambridge, MA, USA;

    Plasma Science and Fusion Center, MIT, Cambridge, MA, USA;

    Plasma Science and Fusion Center, MIT, Cambridge, MA, USA;

    Plasma Science and Fusion Center, MIT, Cambridge, MA, USA;

    Plasma Science and Fusion Center, MIT, Cambridge, MA, USA;

    Plasma Science and Fusion Center, MIT, Cambridge, MA, USA;

    Plasma Science and Fusion Center, MIT, Cambridge, MA, USA;

    Plasma Science and Fusion Center, MIT, Cambridge, MA, USA;

    Currently at Max-Planck-Institut fur Plasmaphysik, Garching, Germany;

    Plasma Science and Fusion Center, MIT, Cambridge, MA, USA;

    Plasma Science and Fusion Center, MIT, Cambridge, MA, USA;

    Plasma Science and Fusion Center, MIT, Cambridge, MA, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号