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核聚变与等离子体物理 ›› 2010, Vol. 30 ›› Issue (2): 157-161.

• 核聚变工程技术 • 上一篇    下一篇

EAST装置低杂波电流驱动效率分析

李文科,丁伯江,李妙辉,查文清,胡怀传   

  1. (中国科学院等离子体物理研究所,合肥 230031)
  • 收稿日期:2009-08-28 修回日期:2010-02-11 出版日期:2010-06-15 发布日期:2010-06-03
  • 作者简介:李文科(1984-),男,内蒙古巴彦淖尔布人,中国科学院等离子体物理研究所硕士研究生,主要从事低杂波电流驱动数值模拟与实验研究。
  • 基金资助:

    国家自然科学基金资助项目(10875149)

Lower hybrid wave current drive efficiency study on EAST tokamak

LI  Wen-ke,DING  Bo-jiang,LI  Miao-hui,ZHA  Wen-qing,HU  Huai-chuan   

  1. (Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031)
  • Received:2009-08-28 Revised:2010-02-11 Online:2010-06-15 Published:2010-06-03

摘要: 在EAST上通过分析剩余环电压与低杂波功率之间的关系,计算得到了低杂波电流驱动效率。采用归一化功率,即功率对等离子体电流、电子密度、等离子体大半径以及有效电荷数归一化,将所有数据绘制在同一曲线中,这样可以得到不同等离子体参数下的低杂波电流驱动效率。实验得到低杂波电流驱动效率η0=(0.5~1.3)×1019 A.m-2.W-1,在等离子体电流Ip=277kA、低杂波功率PLH=681kW条件下,实验得到长达3s的低杂波全波驱动。

关键词: EAST装置, 低杂波, 电流驱动效率

Abstract: The relationship between the residual loop voltage and the power of lower hybrid wave is investigated to obtain the lower hybrid wave current drive efficiency on EAST tokamak. The power of lower hybrid wave is normalized by plasma current,electron density,the major radius of the plasma and the effective ion charge number,so lower hybrid current drive efficiency can be calculated in one curve with different plasma parameters. The obtained lower hybrid current drive efficiency varies between 0.5 and 1.3×1019 A•m-2•W-1,a fully lower hybrid current drive is obtained as long as 3s at a plasma current of 277kA and lower hybrid wave power of 681kW.

Key words: EAST tokamak, Lower hybrid wave, Current drive efficiency

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