Effects of plasma turbulence on the nonlinear evolution of magnetic island in tokamak.
basic_science · Level V
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- Record sourced from PubMed, PMID 33446658.
- Also identified by DOI 10.1038/s41467-020-20652-9 and PMC identifier 7809268.
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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.