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Plasma flow due to a loss-cone distribution centred around the outboard edge in DIII-D

J.S. deGrassie, S.H. Müller, J.A. Boedo2012年被引用 32Nuclear FusionIF 3出版社

Recent Mach probe measurements of the bulk ion toroidal velocity near the last closed flux surface in DIII-D (Müller et al 2011 Phys. Rev. Lett.106 115001) are consistent with the existence of a loss-cone distribution in velocity space, as described previously (deGrassie et al2009 Nucl. Fusion49 085020), predicting a co-Ip directed velocity localized to the edge. The former model has been extended into the scrape-off layer and takes into account limiting surfaces, and is also extended to include the effect of a uniform radial electric field with magnitude and sign relevant for measurements in the edge of DIII-D H-mode conditions. These added effects modify the details but do not wash out the basic model-computed velocity profile.

日本語訳

DIII-Dにおける最終閉鎖磁気面近傍のバルクイオントロイダル速度の最近のマッハプローブ測定(Müller et al 2011 Phys. Rev. Lett.106 115003)は、速度空間における損失円錐分布の存在と一致しており、これは先に述べたように(deGrassel et al 2009 Nucl. Fusion49 085020)、プラズマ端部に局在するco-Ip方向の速度を予測するものである。このモデルはスクレイプオフ層まで拡張され、制限面を考慮に入れるとともに、DIII-DのHモード条件下での端部測定に関連する大きさと符号を持つ一様な径方向電場の影響も含めるように拡張された。これらの追加された効果は詳細を修正するが、モデルが計算する基本速度分布を消失させるものではない。

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