High-field-side RF injection for excitation of electron Bernstein waves

Ryota Yoneda, Kazuaki Hanada, Hatem Elserafy, Nicola Bertelli, Masayuki Ono

研究成果: Contribution to journalArticle査読

2 被引用数 (Scopus)

抄録

An evaluation of high-field-side (HFS) X-mode injection for the electron-Bernstein-wave (EBW) scenario is performed using the GENRAY ray-tracing code. In the early stage of low-density plasma start-up, when the electron cyclotron resonance and upper hybrid resonance layers are close to each other, efficient and localized heating by the EBW is attainable. We show that, when the electron density rises, the HFS scenario spontaneously shifts to current drive with successful electron heating. This shift can be explained as a change in heating mechanism from collisional to electron cyclotron damping. Also, we discuss a possible O-X-B scenario to continue the plasma current drive beyond the formation of an over-dense plasma.

本文言語英語
論文番号3402115
ジャーナルPlasma and Fusion Research
13
DOI
出版ステータス出版済み - 2018
外部発表はい

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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