• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nuclear fusion >Development of helium electron cyclotron wall conditioning onTCV
【24h】

Development of helium electron cyclotron wall conditioning onTCV

机译：TCV氦电子回旋加速器壁调节的发展

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

JT-60SA envisions electron cyclotron wall conditioning (ECWC), as wall conditioning method in the presence of the toroidal field to control fuel and impurity recycling and to improve plasma performance and reproducibility. This paper reports on Helium ECWC experiments on TCV in support of JT-60SA operation. Nearly sixty Helium conditioning discharges have been successfully produced in TCV, at a toroidal field B_T = 1.3 or 1.54 T, with gyrotrons at 82.7 GHz in X2 mode, mimicking ECWC operation in JT-60SA at the second harmonic of the EC wave. Discharge parameters were tuned in order to (ⅰ) minimize the time for the onset of ECWC plasmas, thus minimizing absorption of stray radiation by in-vessel components, (ⅱ) improve discharge homogeneity by extending the discharge vertically and radially, and wall coverage, in particular of inboard surfaces where JT-60SA plasmas will be initiated, (ⅲ) assess the efficiency of He-ECWC to deplete carbon walls from fuel. An optimized combination of vertical and radial magnetic fields, with amplitudes typically 0.1 to 0.6% of that of Bj, has been determined, which resulted in lowest breakdown time, improved wall coverage and enhanced fuel removal. A standard ohmic D_2-plasma could be then sustained, whereas it would not have been possible without He-ECWC.
机译：JT-60SA设想将电子回旋加速器壁调节（ECWC）作为存在环形场时的壁调节方法，以控制燃料和杂质循环并改善等离子体性能和可重复性。本文报道了支持JT-60SA操作的TCV氦气ECWC实验。 TCV已成功在环形场B_T = 1.3或1.54 T下以X2模式在82.7 GHz的回旋管成功产生了近60个氦气调节放电，模仿了ECT二次谐波下JT-60SA的ECWC操作。调整了放电参数，以（ⅰ）最小化ECWC等离子体的产生时间，从而最大程度地减少了容器内组分对杂散辐射的吸收，（ⅱ）通过垂直和径向扩展放电来改善放电均匀性，并覆盖壁面， （ⅲ）评估He-ECWC从燃料中耗尽碳壁的效率，尤其是将要引发JT-60SA等离子体的内侧表面。已经确定了垂直磁场和径向磁场的最佳组合，其幅度通常为Bj幅度的0.1％至0.6％，从而可以使故障时间最短，提高壁覆盖率并提高燃油去除率。然后可以维持标准的欧姆D_2-等离子体，但是如果没有He-ECWC，则不可能。

著录项

  • 来源
    《Nuclear fusion》 |2018年第2期|026018.1-026018.9|共9页
  • 作者

    D. Douai; T. Goodman; A. Isayama; M. Fukumoto; T. Wauters; C. Sozzi; S. Coda; P. Blanchard; L. Figini; S. Garavaglia; Y. Miyata; A. Moro; D. Ricci; M. Silva; C. Theiler; S. Vartanian; K. Verhaegh;

  • 作者单位

    CEA, IRFM, F-13108, St-Paul-Lez-Durance, France;

    Ecole Polytechnique F6derale de Lausanne (EPFL), Swiss Plasma Center (SPC), CH-1015 Lausanne, Switzerland;

    National Institutes for Quantum and Radiological Science and Technology, Naka, Ibaraki 311-0193, Japan;

    National Institutes for Quantum and Radiological Science and Technology, Naka, Ibaraki 311-0193, Japan;

    TEC Partner, Laboratory for Plasma Physics, ERM/KMS, 1000 Brussels, Belgium;

    Istituto di Fisica del Plasma CNR, Milano, Italy;

    Ecole Polytechnique F6derale de Lausanne (EPFL), Swiss Plasma Center (SPC), CH-1015 Lausanne, Switzerland;

    Ecole Polytechnique F6derale de Lausanne (EPFL), Swiss Plasma Center (SPC), CH-1015 Lausanne, Switzerland;

    Istituto di Fisica del Plasma CNR, Milano, Italy;

    Istituto di Fisica del Plasma CNR, Milano, Italy;

    National Institutes for Quantum and Radiological Science and Technology, Naka, Ibaraki 311-0193, Japan;

    Istituto di Fisica del Plasma CNR, Milano, Italy;

    Istituto di Fisica del Plasma CNR, Milano, Italy;

    Ecole Polytechnique F6derale de Lausanne (EPFL), Swiss Plasma Center (SPC), CH-1015 Lausanne, Switzerland;

    Ecole Polytechnique F6derale de Lausanne (EPFL), Swiss Plasma Center (SPC), CH-1015 Lausanne, Switzerland;

    CEA, IRFM, F-13108, St-Paul-Lez-Durance, France;

    Ecole Polytechnique F6derale de Lausanne (EPFL), Swiss Plasma Center (SPC), CH-1015 Lausanne, Switzerland;

  • 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

    fusion; plasma wall interaction; wall conditioning; ECRH; ECWC;

    机译：融合血浆壁相互作用;墙面调节;ECRH;ECWC;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号