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

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

doi:10.1038/s41467-020-20652-9

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

Journal Article · Thu Jan 14 00:00:00 EST 2021 · Nature Communications

DOI:https://doi.org/10.1038/s41467-020-20652-9· OSTI ID:1785981

^[1]; Bardōczi, Lāszlo ^[2]; Kwon, Jae-Min ^[1]; Hahm, T. S. ^[3]; Park, Hyeon K. ^[4]; Kim, Jayhyun ^[1]; Woo, Minho ^[1]; Park, Byoung-Ho ^[1];

^[5]; Yoon, Eisung ^[4]; McKee, George ^[2]

Korea Inst. of Fusion Energy, Daejeon (Korea)
General Atomics, San Diego, CA (United States)
Seoul National Univ. (Korea)
Ulsan National Inst. of Science and Technology (Korea)
Pohang Univ. of Science and Technology, Gyeongbuk (Korea)

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.

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Research Organization:: General Atomics, San Diego, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Fusion Energy Sciences (FES)

Grant/Contract Number:: FC02-04ER54698

OSTI ID:: 1785981

Journal Information:: Nature Communications, Vol. 12, Issue 1; ISSN 2041-1723

Publisher:: Nature Publishing GroupCopyright Statement

Country of Publication:: United States

Language:: English

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