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Structure of the classical scrape-off layer of a tokamak

V Rozhansky, E Kaveeva, I Senichenkov, E Vekshina2018年Plasma Physics and Controlled FusionIF 2.2出版社

The structure of the scrape-off layer (SOL) of a tokamak with little or no turbulent transport is analyzed. The analytical estimates of the density and electron temperature fall-off lengths of the SOL are put forward. It is demonstrated that the SOL width could be of the order of the ion poloidal gyroradius, as suggested in Goldston (2012 Nuclear Fusion52 013009). The analytical results are supported by the results of the 2D simulations of the edge plasma with reduced transport coefficients performed by SOLPS-ITER transport code.

日本語訳

乱流輸送がほとんどまたは全くないトカマクのスクレイプオフ層(SOL)の構造を解析する。SOLの密度および電子温度の減衰長さに関する解析的評価を提示する。SOLの幅がイオンのポロイダルジャイロ半径のオーダーになり得ることを実証する。これはGoldston(2012 Nuclear Fusion 52 013209)で示唆されたものである。解析的結果は、SOLPS-ITER輸送コードによって実行された、輸送係数を低減した周辺プラズマの2次元シミュレーションの結果によって裏付けられる。

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Scrape-off layer
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