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Radial profiles of impurity lines from a scanning mirror VUV system in a compact helical system

S Morita, S Muto, M Sakurai1997年Fusion Engineering and DesignIF 1.7出版社

AbstractA scanning mirror VUV system with an octagonal rotating mirror was constructed and routinely operated in a compact helical system to observe the impurity radial profiles after installation of carbon plates to shut out the wall reflection of VUV light. The system covers a practical range of 40–160 nm and exhibits a good time resolution of 2.5 ms. It is observed that the plasma always begins to shrink from the edge when the radiation collapse happens. The data obtained are analyzed with magnetic surfaces and are well described, considering the distortion of the magnetic surface by the β effect.

日本語訳

要約:走査型VUVシステムを、コンパクトな螺旋状に回転するミラーを用いて構築し、プラズマ不純物の動径プロファイルを測定した。このシステムは、40〜160nmの範囲をカバーし、時間分解能は2.5msである。放射崩壊が発生すると、プラズマは端部から収縮し始めることが観測された。得られたデータは、β効果による磁気面の歪みを考慮すると、磁気面上でよく説明できることがわかった。

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ImpurityCompact Helical SystemHelical system
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