Choi Minjun J, Bardōczi Lāszlo, Kwon Jae-Min, Hahm T S, Park Hyeon K, Kim Jayhyun, Woo Minho, Park Byoung-Ho, Yun Gunsu S, Yoon Eisung, McKee George
Korea Institute of Fusion Energy, Daejeon, 34133, Republic of Korea.
General Atomics, P.O. Box 85608, San Diego, CA, 92186-5608, USA.
Nat Commun. 2021 Jan 14;12(1):375. doi: 10.1038/s41467-020-20652-9.
Magnetic islands (MIs), resulting from a magnetic field reconnection, are ubiquitous structures in magnetized plasmas. In tokamak plasmas, recent researches suggested that the interaction between an MI and ambient turbulence can be important for the nonlinear MI evolution, but a lack of detailed experimental observations and analyses has prevented further understanding. Here, we provide comprehensive observations such as turbulence spreading into an MI and turbulence enhancement at the reconnection site, elucidating intricate effects of plasma turbulence on the nonlinear MI evolution.
由磁场重联产生的磁岛（MIs）是磁化等离子体中普遍存在的结构。在托卡马克等离子体中，最近的研究表明，磁岛与周围湍流之间的相互作用对于磁岛的非线性演化可能很重要，但缺乏详细的实验观测和分析阻碍了进一步的理解。在此，我们提供了全面的观测结果，如湍流扩散到磁岛中以及在重联位点处的湍流增强，阐明了等离子体湍流对磁岛非线性演化的复杂影响。
