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Modification of the helical divertor footprint induced by the net toroidal plasma current in the LHD heliotron

机译:左心室电晕器中的净环形等离子体电流引起的螺旋偏滤器足迹的修改

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摘要

In this study, the modification of the helical divertor footprint induced by the net toroidal plasma current was investigated in the Large Helical Device (LHD). The divertor footprint shifted a few centimetres when the net toroidal plasma current, as measured by Rogowski coils, was induced via the neutral-beam injection. The shift direction was related to the plasma current direction, and the shift width showed almost linear dependence on the plasma current divided by the toroidal field strength. Magnetic field line tracing calculation considering the plasma current within a simple model revealed that the modification of the edge field line structure causes the footprint shift. The predicted and experimental shift widths agreed qualitatively.
机译:在这项研究中,在大型螺旋装置(LHD)中研究了净环形等离子体电流引起的螺旋偏滤器足迹的变化。当通过中性束注入感应出由Rogowski线圈测量的净环形等离子体电流时,偏滤器的足迹偏移了几厘米。偏移方向与等离子体电流方向相关,并且偏移宽度显示出对等离子体电流的几乎线性依赖性除以环形场强。在简单模型中考虑等离子体电流的磁场线跟踪计算表明,边缘场线结构的修改会导致覆盖区偏移。预测的和实验的偏移宽度在质量上一致。

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  • 来源
    《Nuclear fusion》 |2013年第11期|112001.1-112001.4|共4页
  • 作者单位

    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan;

    Graduate University for Advanced Studies, Hayama 240-0163, Japan;

    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan;

    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan;

    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan;

    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan;

    National Institute for Fusion Science, 322-6 Oroshi-cho, Toki 509-5292, Japan;

  • 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
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