Effects of plasma turbulence on the nonlinear evolution of magnetic island in tokamak
M. Choi, L. Bardóczi, Jae-Min Kwon, T.S. Hahm, Hyeon K. Park, Jayhyun Kim, Minho Woo, Byoungho Park, G.S. Yun, Eisung Yoon, G. R. McKee
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.
Topics & Concepts
TurbulenceTokamakPlasmaPhysicsNonlinear systemMagnetic reconnectionMagnetic fieldComputational physicsStatistical physicsMechanicsNuclear physicsQuantum mechanicsMagnetic confinement fusion researchIonosphere and magnetosphere dynamicsSolar and Space Plasma Dynamics