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Measurements of ion temperature and flow velocity using symmetric and asymmetric double probes in the boundary plasma of the JFT-2M tokamak

K. Uehara, T. Kawakami, H. Amemiya, K. Höthker, A. Cosler, W. Bieger1998年被引用 26Nuclear FusionIF 3出版社

The radial profiles of the ion temperature as well as the flow velocity have been measured by using rotatable symmetric and asymmetric double probes in the boundary plasma of the JFT-2M tokamak. It has been found that the ion temperature is higher than the electron temperature by a factor of about 10, and the flow velocity is 0.2-0.3 of the ion sound velocity in the SOL for both ohmic and NB injection heating. These data can help to determine the cross-field thermal diffusivity in tokamak boundary plasma.

日本語訳

イオン温度と流動速度の径方向分布は、JFT-2Mトカマクの境界プラズマにおいて、回転可能な対称および非対称ダブルプローブを用いて測定された。その結果、イオン温度は電子温度よりも約10倍高く、流動速度はオーミック加熱およびNB入射加熱の両方においてSOL内のイオン音速の0.2~0.3倍であることが見出された。これらのデータは、トカマク境界プラズマにおける熱横断拡散係数を決定するのに役立つ。

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