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On the stabilization of neoclassical tearing modes by phased electron cyclotron waves

Qingquan Yu, Sibylle Günter1998年Plasma Physics and Controlled FusionIF 2.2出版社

The stabilization of neoclassical tearing modes by phased electron cyclotron current drive (ECCD) and electron cyclotron resonance heating (ECRH) is studied numerically. The dependence of the saturated magnetic island width on the magnitude, width and location of the driven current and the corresponding resistivity perturbation are investigated. Since the saturated island size cannot become much smaller than the width of the driven current layer, this width is one of the most important parameters. Assuming usual heat transport coefficients, the stabilization by ECRH is found to be more effective than that by ECCD for a large island in a middle-size tokamak, while the stabilization by ECCD should be more effective for a tokamak reactor.

日本語訳

位相制御された電子サイクロトロン電流駆動(ECCD)および電子サイクロトロン共鳴加熱(ECRH)による新古典テアリングモードの安定化を数値的に研究した。駆動電流の大きさ、幅、位置、および対応する抵抗率摂動に対する飽和磁気島幅の依存性を調べた。飽和島サイズは駆動電流層の幅よりもはるかに小さくなることはできないため、この幅は最も重要なパラメータの一つである。通常の熱輸送係数を仮定すると、中型トカマクにおける大きな島に対しては、ECRHによる安定化がECCDによるものよりも効果的であることがわかった。一方、トカマク炉ではECCDによる安定化の方がより効果的であるはずである。

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Tearing modeNeoclassical tearing modeCyclotron waveElectron cyclotron wave
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