Articles with "magnetic island" as a keyword



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Electron acceleration in a secondary magnetic island formed during magnetic reconnection with a guide field

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Published in 2017 at "Physics of Plasmas"

DOI: 10.1063/1.4982813

Abstract: Secondary magnetic islands may be generated in the vicinity of an X line during magnetic reconnection. In this paper, by performing two-dimensional (2-D) particle-in-cell simulations, we investigate the role of a secondary magnetic island in… read more here.

Keywords: field; magnetic island; magnetic reconnection; secondary magnetic ... See more keywords
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Global gyrokinetic simulation of microturbulence with kinetic electrons in the presence of magnetic island in tokamak

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Published in 2019 at "Physics of Plasmas"

DOI: 10.1063/1.5096962

Abstract: An electrostatic model has been formulated and implemented in the gyrokinetic toroidal code to study the nonlinear ion temperature gradient (ITG) turbulence in the presence of an n = 1, m = 2 magnetic island. The ions are described… read more here.

Keywords: mode; presence magnetic; magnetic island; point ... See more keywords
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Generation of geodesic acoustic mode by nonlinear coupling of magnetic island and island-driven beta-induced Alfvén eigenmode

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Published in 2017 at "Plasma Physics and Controlled Fusion"

DOI: 10.1088/1361-6587/aa7646

Abstract: In a recent work, we have shown that the plasma flow around the magnetic island can excite the beta-induced Alfven eigenmode (BAE) (Marchenko et al 2016 Nucl. Fusion 56 106021). In the present communication, it… read more here.

Keywords: geodesic acoustic; magnetic island; acoustic mode; island ... See more keywords
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Experimental inference of flux tunneling between magnetic island chains in tokamaks

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Published in 2021 at "Nuclear Fusion"

DOI: 10.1088/1741-4326/ac0411

Abstract: We report confinement bifurcations due to flux tunneling in magnetic islands in toroidal plasmas. This occurs in 2/1 islands, triggered by decoupling of non-overlapping adjacent 5/2 islands. While subject to electron cyclotron current drive (ECCD),… read more here.

Keywords: experimental inference; inference flux; flux; magnetic island ... See more keywords
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Self-Sustained Divertor Oscillation Driven by Magnetic Island Dynamics in Torus Plasma.

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Published in 2022 at "Physical review letters"

DOI: 10.1103/physrevlett.128.085001

Abstract: A new type of self-sustained divertor oscillation is discovered in the Large Helical Device stellarator, where the peripheral plasma is detached from material diverters by means of externally applied perturbation fields. The divertor oscillation is… read more here.

Keywords: self sustained; divertor oscillation; divertor; magnetic island ... See more keywords