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The trapped ion mode in hot ion plasmas

R.R. Dominguez1991年被引用 3Nuclear FusionIF 3出版社

In recent experiments on DIII-D, hot ion H-mode plasmas (Ti ≫ Te) have been obtained in which the ion thermal diffusivity is substantially smaller than the electron thermal diffusivity in the central plasma region. Previous anomalous transport models, employing a combination of dissipative trapped electron mode and ion temperature gradient mode transport mechanisms, are not consistent with the observation of the hot ion H-mode. The collisionless trapped ion mode is proposed as an explanation of these results. The stability properties of the hot ion trapped ion mode are discussed and quasi-linear estimates of the radial heat fluxes are presented which support the observation that in the central region the ion thermal conductivity is much smaller than the electron thermal conductivity.

日本語訳

最近のDIII-Dにおける実験では、中心プラズマ領域においてイオン熱拡散率が電子熱拡散率よりも実質的に小さい高温イオンHモードプラズマ(Ti ≫ Te)が得られている。散逸性捕捉電子モードとイオン温度勾配モードの輸送機構の組み合わせを用いた従来の異常輸送モデルは、高温イオンHモードの観測と矛盾する。無衝突捕捉イオンモードがこれらの結果の説明として提案されている。高温イオン捕捉イオンモードの安定性特性について議論し、中心領域においてイオン熱伝導率が電子熱伝導率よりもはるかに小さいという観測を支持する準線形の動径熱流束の推定値を提示する。

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diii-d中精度(概要文一致)
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