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Modelling of radial electric fields and currents during divertor plate biasing on TdeV

J.-L. Lachambre, B. Quirion, C. Boucher, R. Decoste, D. Michaud, G. Le Clair, P. Couture, A. Boileau, J.-L. Gauvreau, D. Bourgoin1994年被引用 28Nuclear FusionIF 3出版社

A simple model based on non-ambipolar radial transport and planar sheath physics is used to describe the generation of radial electric fields and currents in the scape-off layer of the Tokamak de Varennes (TdeV) during divertor plate biasing. In general, the calculated predictions compare favourably with TdeV results over a variety of plasma conditions and divertor magnetic configurations. Validated by the experiment, the model is used to study the scaling laws of perpendicular ion mobility and to test existing related theories. Finally, the model is proposed as a useful tool for the design and upgrade of biased divertors through optimization of the plate and throat geometry

日本語訳

非両極性動径輸送と平面シース物理に基づく単純なモデルを用いて、ダイバータ板バイアス印加中のトカマク・ド・ヴァレンヌ(TdeV)におけるスクレイプオフ層での径方向電場と電流の生成を記述する。一般に、計算による予測は、多様なプラズマ条件およびダイバータ磁気配位にわたってTdeVの実験結果と良好に一致する。実験によって検証されたこのモデルは、垂直方向のイオン移動度のスケーリング則を研究し、既存の関連理論を検証するために用いられる。最後に、このモデルは、板およびスロート形状の最適化を通じたバイアス印加ダイバータの設計および改良のための有用なツールとして提案される。

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DivertorRadial electric field
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