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JET progress towards an advanced mode of ITER operation with current profile control

Alain Becoulet, (on behalf of theContributors to the EFDA-JET Workprogramme)2001年Plasma Physics and Controlled FusionIF 2.2出版社

The recent progress of the EFDA-JET facility in advanced tokamak (AT) scenario research is reviewed, emphasizing the relevance for the advanced mode of ITER operation. In particular, the key role played by the current density profile from the low-performance prelude phase, to trigger an internal transport barrier (ITB), to the high-performance steady state, to maintain the regime, is illustrated by the recent results obtained on JET with reversed magnetic shear targets. The mitigated ELMy edge behaviour, as well as the neoclassical nature of the particle transport in highly non-inductive ITB discharges, is also reported and discussed. Finally, the first demonstrations of real-time profile control of ITB discharges open the way towards high-performance steady-state AT discharges, provided that current density and pressure profiles are controlled.

日本語訳

JET装置における先進トカマク(AT)シナリオ研究の最近の進展について概説し、ITERの先進運転モードとの関連性を強調する。特に、電流密度分布が果たす重要な役割について、低性能の前駆段階から内部輸送障壁(ITB)の形成を経て高性能定常状態に至るまで、JETで得られた反転磁気シアを有する最近の結果を用いて説明する。また、高非誘導ITB放電における粒子輸送の新古典的性質とともに、緩和されたELM挙動についても報告する。最後に、ITB放電のリアルタイムプロファイル制御の初期的実証は、電流密度と圧力分布が制御されることを条件として、高性能定常AT運転への道を開くものである。

装置

iter高精度(タイトル一致)jet高精度(タイトル一致)

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