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Suppression of type-I ELMs using a single toroidal row of magnetic field perturbation coils in DIII-D

M.E. Fenstermacher, T.E. Evans, T.H. Osborne, M.J. Schaffer, J.S. deGrassie, P. Gohil, R.A. Moyer, the DIII-D Team2008年被引用 29Nuclear FusionIF 3出版社

In recent DIII-D (J.L. Luxon et al2003 Nucl. Fusion43 1813) experiments, suppression of type-I edge localized modes (ELMs) was obtained by applying n = 3 resonant magnetic perturbations using a single toroidal row of internal, small aperture coils located either above or below the equatorial plane in plasmas with ITER-like electron pedestal collisionality , flux surface shape and low edge safety factor (q95 ≈ 3.6). ELM suppression with a single row of coils was achieved at approximately the same q95 surface-averaged perturbation field as with two rows of coils, but required higher current per coil. Suppression of type-I ELMs was not obtained with similar n = 3 perturbation strength at the q95 surface from a single-row of external, large aperture coils on the outer equatorial midplane.

日本語訳

最近のDIII-D(J.L. Luxonら、2003年 Nucl. Fusion 43 1813)における実験では、赤道面の上方または下方に位置する内部の小型コイルの単一トロイダル列を用いてn = 3の共鳴磁場摂動を印加することにより、ITER類似の電子ペデスタル衝突度、磁束面形状、および低いエッジ安全係数(q95 ≈ 3.6)を有するプラズマにおいて、I型エッジ局在モード(ELM)の抑制が達成された。単一コイル列によるELM抑制は、2列のコイルを用いた場合とほぼ同じq95表面平均摂動磁場で達成されたが、コイルあたりにより高い電流を必要とした。外側赤道面中平面における外部の大口径コイルの単一列を用いた場合、q95表面において同様のn = 3摂動強度ではI型ELMの抑制は得られなかった。

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diii-d高精度(タイトル一致)iter中精度(概要文一致)

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DIII-DEdge localized mode
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