Pitch-angle distribution of accelerated electrons in 3D current sheets with magnetic islands
Sign Up to like & getrecommendations! Published in 2021 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/202039220
Abstract: Aims. This research aims to explore variations of electron pitch-angle distribution (PAD) during spacecraft cross reconnecting current sheets (RCSs) with magnetic islands. The results can benchmark the sampled characteristic features with realistic PADs derived from… read more here.
Keywords: magnetic islands; pitch angle; current sheets; field ... See more keywords
Isochronous bifurcations of magnetic islands in tokamaks
Sign Up to like & getrecommendations! Published in 2024 at "Physics of Plasmas"
DOI: 10.1063/5.0212655
Abstract: On a rational magnetic surface, an isochronous bifurcation transforms one island chain into another chain with the same winding number. This transformation has been the subject of recent studies in tokamak plasmas. Namely, visco-resistive magnetohydrodynamic… read more here.
Keywords: isochronous bifurcations; magnetic islands; surface; islands tokamaks ... See more keywords
The interaction of turbulence, magnetic islands, and zonal fields in fluid plasma models with cubic non-linearities
Sign Up to like & getrecommendations! Published in 2025 at "Physics of Plasmas"
DOI: 10.1063/5.0272394
Abstract: It is shown that the generation of magnetic islands by pressure-gradient-driven turbulence is common across a wide range of conditions. The interaction among the turbulence, the magnetic island, and other large scale structures, namely, the… read more here.
Keywords: islands zonal; magnetic islands; turbulence; zonal flow ... See more keywords
Suppression of equilibrium magnetic islands by density profile effect in quasi-axisymmetric stellarator plasmas
Sign Up to like & getrecommendations! Published in 2024 at "Plasma Physics and Controlled Fusion"
DOI: 10.1088/1361-6587/ad441b
Abstract: In a quasi-axisymmetric stellarator, a significant bootstrap current will result in the generation of low-order rational surfaces and three-dimensional (3D) magnetic islands. In this paper, the influence of plasma density profiles on the equilibrium magnetic… read more here.
Keywords: magnetic islands; quasi axisymmetric; axisymmetric stellarator; density ... See more keywords
Numerical analysis of fast ions transport induced by magnetic islands in HL-2A
Sign Up to like & getrecommendations! Published in 2024 at "Plasma Physics and Controlled Fusion"
DOI: 10.1088/1361-6587/ad5c9c
Abstract: The transport of beam ions in the presence of single/multiple tearing modes (TMs) under HL-2A geometry has been investigated by test particle method. Simulation results show that there exists a threshold behavior in the number… read more here.
Keywords: transport; beam ions; analysis; magnetic islands ... See more keywords
Effects of magnetic islands on bootstrap current in toroidal plasmas
Sign Up to like & getrecommendations! Published in 2017 at "Nuclear Fusion"
DOI: 10.1088/1741-4326/57/3/036009
Abstract: The effects of magnetic islands on electron bootstrap current in toroidal plasmas are studied using gyrokinetic simulations. The magnetic islands cause little changes of the bootstrap current level in the banana regime because of trapped… read more here.
Keywords: magnetic islands; effects magnetic; current toroidal; bootstrap current ... See more keywords
Shear Alfvén waves within magnetic islands
Sign Up to like & getrecommendations! Published in 2024 at "Nuclear Fusion"
DOI: 10.1088/1741-4326/ad34e2
Abstract: We calculate Alfvén eigenmodes within a magnetic island (MiAE) which have been conjectured over a decade ago. Starting from a cylindrical plasma equilibrium, we calculate the complete metric of the island interior assuming an iota… read more here.
Keywords: within magnetic; waves within; magnetic islands; shear alfv ... See more keywords
Physics-guided attention-aware convolutional neural networks for identification of magnetic islands in the tearing mode on EAST tokamak
Sign Up to like & getrecommendations! Published in 2025 at "Nuclear Fusion"
DOI: 10.1088/1741-4326/adc9c2
Abstract: The tearing mode (TM), a large-scale magnetohydrodynamic instability in tokamak, typically disrupts the equilibrium magnetic surfaces, leads to the formation of magnetic islands, reduces core electron temperature and density, thus resulting in significant energy losses… read more here.
Keywords: convolutional neural; magnetic islands; attention; attention aware ... See more keywords
Signatures of Jackiw-Rebbi resonance in the thermal conductance of topological Josephson junctions with magnetic islands
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.103.075439
Abstract: Josephson junctions in two-dimensional topological insulators with embedded magnetic domains can host a number of topological phases, in particular, Jackiw-Rebbi solitons and Majorana zero modes. These different non-trivial phases appear in such junctions for multiple-domain… read more here.
Keywords: jackiw rebbi; magnetic islands; thermal conductance; josephson ... See more keywords