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核聚变与等离子体物理 ›› 2013, Vol. 33 ›› Issue (1): 66-71.

• 核聚变工程技术 • 上一篇    下一篇

EAST装置上Halo电流特性分析与偏滤器载荷估算

陈大龙,沈飙   

  1. (中国科学院等离子体物理研究所,合肥 230031)
  • 收稿日期:2012-08-15 修回日期:2012-12-03 出版日期:2013-03-15 发布日期:2013-03-15
  • 作者简介:陈大龙(1989-),男,安徽安庆人,硕士,主要从事VDE下Halo电流的研究及内真空室受力分析。
  • 基金资助:

    国家973工程资助项目(095GZ18562)

Characteristics of Halo current in EAST and estimate of divertor load

CHEN Da-long , SHEN Biao   

  1. (Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031)
  • Received:2012-08-15 Revised:2012-12-03 Online:2013-03-15 Published:2013-03-15

摘要:

破裂诱发的Halo电流会流进内真空室结构,对偏滤器支撑结构有较大的破坏。通过安装在偏滤器支撑结构上的罗柯夫斯基线圈对EAST中Halo电流进行了研究。通过分析不同位置的Halo电流信号,发现这些Halo电流具有环向不对称性,环向不对称因子为2.5, 的最大值是0.65。这些结果对EAST真空室电磁载荷分析有着重要的意义。

关键词: EAST, 垂直位移破裂, Halo电流, 环向不对称因子

Abstract:

In tokamak experiment, the plasmas with elongated cross-section is inherently unstable against vertical displacement, which easily results in disruption when the disruption induced Halo currents flow in the vaccum vessel, large Halo current will produce large damage to the divertor support. The Halo current features were researched in EAST by the Rogowski coils installed in the divertor. By analyzing Halo current at various places, it is found that the Halo currents are toroidal asymmetric, with peaking factor typically 2.5 and the maximum value of 0.65. These results are effective in analysis of EAST vacuum vessel electromagnetic loads.

Key words: EAST, VDE, Halo current, TPF

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