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Coherent magnetic structures in self-organized plasmas

F Pegoraro, D Bonfiglio, S Cappello, G Di Giannatale, M V Falessi, D Grasso, M Veranda2019年Plasma Physics and Controlled FusionIF 2.2出版社

The concept of Lagrangian coherent structures (LCS) has been recently applied to complex magnetic configurations in plasmas in order to find and characterize their main structural features. LCS make it possible to separate regions inside these configurations where field lines exhibit a different kind of behavior. In the present article, first we review the main features and uses of this technique and then apply it to the study of configurations that evolve into a self-organized quasi-single helicity state referring in particular to results obtained in the reversed-field pinch experiment in Padua.

日本語訳

ラグランジアンコヒーレント構造(LCS)の概念は、複雑な磁気配位における主要な構造的特徴を見出し特徴づけるために、近年プラズマに適用されている。LCSにより、これらの配位内部において、磁力線が異なる挙動を示す領域を分離することが可能となる。本論文では、まずこの手法の主な特徴と用途を概説し、その後、自己組織化的な準単一ヘリシティ状態へと発展する配位の研究にこれを適用する。特に、パドヴァにおける逆転磁場ピンチ実験で得られた結果に言及する。

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