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The E × B staircase of magnetised plasmas

G. Dif-Pradalier, G. Hornung, X. Garbet, Ph. Ghendrih, V. Grandgirard, G. Latu, Y. Sarazin2017年被引用 57Nuclear FusionIF 3出版社

We show that a class of near-marginal and low-collisional magnetised plasmas naturally evolve into a globally organised state dubbed the ' staircase'. A key signature of this self-organised state is the containment of avalanche activity, detrimental for confinement, by a series of microbarriers for transport, the staircase steps, beneficial for confinement. Conditions for existence of the staircase, impact on transport and confinement and robustness in parameter space are discussed.

日本語訳

我々は、準周縁的かつ低衝突性の磁化プラズマの一種が、自然に「階段状構造」と名付けられた大域的に組織化された状態へと進化することを示す。この自己組織化状態の鍵となる特徴は、閉じ込めに有害なアバランシェ活動が、閉じ込めに有益な輸送のためのマイクロバリア(階段の段差)の系列によって封じ込められることである。階段状構造の存在条件、輸送および閉じ込めへの影響、パラメータ空間における頑健性について議論する。

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