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Losses of runaway electrons during ergodization

K.H. Finken, S.S. Abdullaev, M. Jakubowski, R. Jaspers, M. Lehnen, O. Zimmermann2006年被引用 24Nuclear FusionIF 3出版社

The dynamic ergodic divertor (DED) of TEXTOR has been applied to runaway discharges. The runaway electrons (ε < 30 MeV) are developed as probes for investigating the internal magnetic field line structure in the plasma. Complementary diagnostics are used, namely neutron measurements for the loss of the runaways and synchrotron radiation for the detection inside the plasma. During the DED phase, three features of the runaway electrons are found: a sudden loss from the just formed ergodic layer, an enhanced diffusive transport and very sudden loss events which may be related to field line reconnection processes.

日本語訳

TEXTORの動的エルゴディックダイバータ(DED)が逃走電子放電に適用された。逃走電子(ε < 30 MeV)は、プラズマ内部の磁場線構造を調査するためのプローブとして開発された。相補的な診断法が用いられ、すなわち、逃走電子の損失に対する中性子測定と、プラズマ内部での検出に対するシンクロトロン放射である。DED位相中に、逃走電子の3つの特徴が見出された:形成されたばかりのエルゴディック層からの突然の損失、拡散輸送の増強、そして磁力線再結合過程に関連する可能性のある非常に急激な損失事象である。

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