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Tearing modes induced by perpendicular electron cyclotron resonance heating in the KSTAR tokamak

H.H. Lee, S.G. Lee, J. Seol, A.Y. Aydemir, C. Bae, J.W. Yoo, Y.S. Na, H.S. Kim, M.H. Woo, J. Kim2014年被引用 3Nuclear FusionIF 3出版社

This paper reports on experimental evidence that shows perpendicular electron cyclotron resonance heating (ECRH) can trigger classical tearing modes when deposited near a rational flux surface. The complex evolution of an m = 2 island is followed during current ramp-up in KSTAR plasmas, from its initial onset as the rational surface enters the ECRH resonance layer to its eventual lock on the wall after the rational surface leaves the layer. Stability analysis coupled to a transport calculation of the current profile with ECRH shows that the perpendicular ECRH may play a significant role in triggering and destabilizing classical m = 2 tearing modes, in agreement with our experimental observation.

日本語訳

本論文は、垂直電子サイクロトロン共鳴加熱(ECRH)が有理磁気面近傍に堆積された際に古典的テアリングモードを誘発し得ることを示す実験的証拠を報告する。KSTARプラズマにおける電流立ち上げ中に、m = 2 磁気島の複雑な時間発展を追跡した。その過程は、有理面がECRH共鳴層に入る際の初期発生から、有理面が層を離れた後の壁への最終的なロックまでを含む。ECRHを伴う電流分布の輸送計算と結合した安定性解析は、垂直ECRHが古典的m = 2テアリングモードの誘発および不安定化に重要な役割を果たし得ることを示しており、これは我々の実験的観測と一致する。

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kstar高精度(タイトル一致)

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Electron cyclotron heatingTearing modeKSTARCyclotron resonanceElectron cyclotron resonance
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