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Numerical analyses of JT-60SA scenarios with the COREDIV code

机译:使用COREDIV代码对JT-60SA方案进行数值分析

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摘要

JT-60SA design scenarios have been analyzed with the help of the self-consistent core-edge COREDIV code, with the aim to assess the influence of impurities on the plasma parameters and tokamak performance. In particular, the reduction of divertor target power load due to radiation of sputtered and externally seeded impurities has been investigated. For all scenarios considered, the gradual replacement of carbon by low Z seeding impurity (N, Ne) is observed as the gas influx increases. For high auxiliary power and low density scenarios, the carbon and seeding impurity radiation does not effectively reduce power to plate. Consequently, results with very high Z_(eff) (about 6-8) and impurity concentrations (>9%) are observed. For these scenarios, seeding of the high Z impurity like krypton seems to be more appropriate, in particular when the plasma density is increased.
机译:JT-60SA的设计方案已在自洽的核心边缘COREDIV代码的帮助下进行了分析,目的是评估杂质对血浆参数和托卡马克性能的影响。特别地,已经研究了由于溅射的杂质和外部种子杂质的辐射而导致的偏滤器目标功率负载的降低。在所有考虑的情况下,随着气体涌入量的增加,低Z注入杂质(N,Ne)逐渐取代了碳。对于高辅助功率和低密度情况,碳和晶种杂质辐射不会有效地降低电镀功率。因此,观察到具有非常高的Z_(eff)(大约6-8)和杂质浓度(> 9%)的结果。对于这些情况,特别是在增加等离子体密度时,像Z这样的高Z杂质的晶种似乎更合适。

著录项

  • 来源
    《Nuclear fusion》 |2016年第1期|016018.1-016018.7|共7页
  • 作者单位

    Institute of Plasma Physics and Laser Microfusion, Hery 23,01-497 Warsaw, Poland;

    CEA, IRFM, F-13108 Saint-Paul-lez-Durance, France;

    Institute of Plasma Physics and Laser Microfusion, Hery 23,01-497 Warsaw, Poland;

    Institute of Plasma Physics and Laser Microfusion, Hery 23,01-497 Warsaw, Poland;

    CCFE, Culham Science Centre, Abingdon, Oxon, OX14 3DB, UK;

    Institute of Plasma Physics and Laser Microfusion, Hery 23,01-497 Warsaw, Poland;

  • 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

    tokamak modelling; impurities; integrated modelling;

    机译:托卡马克模型杂质整合建模;

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