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Improved accuracy in the estimation of the tearing mode stability parameters (△' and w_c) using 2D ECEI data in KSTAR

机译:使用KSTAR中的2D ECEI数据提高了撕裂模式稳定性参数(△'和w_c)的估计精度

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摘要

The accuracy in estimation of two important tearing mode stability parameters (△' and w_c) is improved by employing two-dimensional (2D) ECE imaging data which help one to overcome the resolution limit of conventional one-dimensional data. The experimentally measured 2D images are directly compared with synthetic ones from a tearing mode T_e model to estimate the parameters and an excellent agreement is achieved. The results imply that the observed tearing mode is classically stable but has non-negligible bootstrap current drive.
机译:通过使用二维(2D)ECE成像数据可以提高两个重要的撕裂模式稳定性参数(△'和w_c)的估计精度,这有助于克服常规一维数据的分辨率极限。将实验测量的2D图像与来自撕裂模式T_e模型的合成图像直接进行比较,以估计参数并获得出色的一致性。结果表明,观察到的撕裂模式在经典上是稳定的,但是具有不可忽略的自举电流驱动。

著录项

  • 来源
    《Nuclear fusion》 |2014年第8期|083010.1-083010.7|共7页
  • 作者单位

    Pohang University of Science and Tehcnology, Pohang, Gyungbuk 790-784, Korea;

    Pohang University of Science and Tehcnology, Pohang, Gyungbuk 790-784, Korea;

    Pohang University of Science and Tehcnology, Pohang, Gyungbuk 790-784, Korea;

    Ulsan National Institute of Science and Technology, Ulsan, Gyungbuk 689-798, Korea;

    Columbia University, New York, NY 10027, USA;

    Columbia University, New York, NY 10027, USA;

    York Plasma Institute, Department of Physics, University of York, Heslington,YO10 5DD, UK;

    York Plasma Institute, Department of Physics, University of York, Heslington,YO10 5DD, UK;

    University of California at Davis, Davis, CA 95616, USA;

    University of California at Davis, Davis, CA 95616, USA;

    National Fusion Research Institute, Daejeon 169-148, Korea;

    National Fusion Research Institute, Daejeon 169-148, Korea;

  • 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

    tearing mode stability; electron cyclotron emission imaging; synthetic diagnostic;

    机译:撕裂模式稳定性;电子回旋加速器发射成像;综合诊断;

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