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Effects of plasma turbulence on the nonlinear evolution of magnetic island in tokamak.

ABSTRACT: 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.

SUBMITTER: Choi MJ

PROVIDER: S-EPMC7809268 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature

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Effects of plasma turbulence on the nonlinear evolution of magnetic island in tokamak.

Choi Minjun J MJ Bardōczi Lāszlo L Kwon Jae-Min JM Hahm T S TS Park Hyeon K HK Kim Jayhyun J Woo Minho M Park Byoung-Ho BH Yun Gunsu S GS Yoon Eisung E McKee George G

Nature communications 20210114 1

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 reconnect ...[more]

PMID: 33446658

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