Improving Current Distribution Model for EBWCD using Flux Loops in QUEST

DOI IR (HANDLE) Open Access

Description

During the early phase of tokamak plasma start-up prior to the formation of a closed magnetic surface, various plasma current profiles are expected to be observed. Especially, the noninductive current drive (CD) by the electron Bernstein wave (EBW) is likely to be the most dominant, and the current profile is expected to focus on a local area predicted by the theoretical model. In addition, the EBWCD direction could be affected by a horizontal magnetic field induced by a toroidal magnetic field coil and feed-through. The magnetic flux data cannot be fitted by using a previous model described by Yoshinaga23), and hence, this model needs improvement. Consequently, an improved model is introduced in this paper based on the theoretical prediction of EBWCD. This model can be applied to reproduce the complex plasma current profile accurately during the early phase of the tokamak plasma start-up.

Journal

  • Evergreen

    Evergreen 11 (2), 555-562, 2024-06

    Transdisciplinary Research and Education Center for Green Technologies, Kyushu University

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Keywords

Details 詳細情報について

  • CRID
    1390863860309747840
  • DOI
    10.5109/7183306
  • ISSN
    24325953
    21890420
  • HANDLE
    2324/7183306
  • Text Lang
    en
  • Data Source
    • JaLC
    • IRDB
    • Crossref
    • OpenAIRE
  • Abstract License Flag
    Allowed

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