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Full wave simulations of fast wave heating losses in the scrape-off layer of NSTX and NSTX-U

机译:NSTX和NSTX-U刮除层中快速波加热损耗的全波模拟

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摘要

Full wave simulations of fusion plasmas show a direct correlation between the location of the fast-wave cut-off, radiofrequency (RF) field amplitude in the scrape-off layer (SOL) and the RF power losses in the SOL observed in the National Spherical Torus experiment (NSTX). In particular, the RF power losses in the SOL increase significantly when the launched waves transition from evanescent to propagating in that region. Subsequently, a large amplitude electric field occurs in the SOL, driving RF power losses when a proxy collisional loss term is added. A 3D reconstruction of absorbed power in the SOL is presented showing agreement with the RF experiments in NSTX. Loss predictions for the future experiment NSTX-Upgrade (NSTX-U) are also obtained and discussed.
机译:聚变等离子体的全波模拟显示,在国家球形卫星上观察到的快速波截止的位置,刮除层(SOL)中的射频(RF)场振幅与SOL中的RF功率损耗之间存在直接相关性圆环实验(NSTX)。特别是,当发射波在该区域从to逝转变为传播时,SOL中的RF功率损耗将显着增加。随后,在SOL中会出现一个大幅度的电场,当添加代理碰撞损耗项时,会驱动RF功率损耗。提出了SOL中吸收功率的3D重建,显示与NSTX中的RF实验一致。还获得并讨论了未来实验NSTX-Upgrade(NSTX-U)的损耗预测。

著录项

  • 来源
    《Nuclear fusion》 |2014年第8期|083004.1-083004.6|共6页
  • 作者单位

    Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA;

    XCEL Engineering Inc, 1066 Commerce Park Drive, Oak Ridge, Tennessee 37830, USA;

    Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA;

    Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA;

    Oak Ridge National Laboratory, PO Box 2008, Oak Ridge, Tennessee 37831-6169, USA;

    Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA;

    Oak Ridge National Laboratory, PO Box 2008, Oak Ridge, Tennessee 37831-6169, USA;

    Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA;

    Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA;

    Oak Ridge National Laboratory, PO Box 2008, Oak Ridge, Tennessee 37831-6169, USA;

    Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA;

    Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA;

    Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, 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

    fast wave; heating losses; scrape-off layer;

    机译:快波加热损失;刮除层;

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