Results 21 to 30 of about 43,434 (299)
Drift kinetic theory of the NTM magnetic islands in a finite beta general geometry tokamak plasma
Nuclear Fusion, 2022 In (Imada et al 2019 Nucl. Fusion 59 046016 and references therein) a new 4D drift kinetic nonlinear theory, valid in the limit of a low beta, small inverse aspect ratio, circular cross section, toroidal geometry, to describe the plasma response to the ...
A.V. Dudkovskaia +9 more
doaj +1 more source
Magnetic island dynamics in magnetic reconnection in UTST experiments [PDF]
, 2018 0000-0003-0755-2433The dynamics of the magnetic island formed inside the reconnection current layer was investigated under the strong guide field in the UTST spherical tokamak merging experiment.
KAMIO, Shuji +2 more
core +2 more sources
Flows around the NTM magnetic island [PDF]
, 2022 Flows along the equilibrium magnetic field lines around the NTM magnetic ...
Alexandra Dudkovskaia
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Coalescence of Magnetic Islands
The Physics of Fluids, 1979 A detailed numerical analysis has been conducted of the instability described by Finn and Kaw in which parallel currents in neighboring islands tend to coalesce into larger units. The existence of this coalescence instability in the ideal magnetohydrodynamic limit is confirmed, but no evidence is found for a threshold in island width. The linear growth
Biskamp, D., Welter, H.
openaire +4 more sources
Forced Magnetic Reconnection in Helical Plasmas [PDF]
, 2010 Magnetic islands excited by resonant magnetic perturbations (RMPs) in helical plasmas are investigated. A Rutherford-type equation is coupled with the time evolution equation of the radial electric field associated with the neoclassical particle ...
Yoshiro NARUSHIMA +12 more
core +2 more sources
Nuclear Fusion, 2023 A nonlinear 4-dimensional drift island theory derived in (Imada et al 2019 Nucl. Fusion 59 046016 and references therein) provides qualitative predictions of the plasma response to a stationary neoclassical tearing mode (NTM) magnetic island in a low ...
A.V. Dudkovskaia +6 more
doaj +1 more source
Mineralogy and Magnetic Properties of Basaltic Substrate Soils: Kaho'olawe and Big Island, Hawaii [PDF]
, 2008 Magnetic behavior of soils can seriously hamper the performance of geophysical sensors. Currently, we have little understanding of the types of minerals responsible for the magnetic behavior, as well as their distribution in space and evolution through ...
Deidre A. Hirschfeld +11 more
core +1 more source
Coalescence instability of magnetic islands [PDF]
The Physics of Fluids, 1977 The stability of a periodic magnetic island structure using the ideal magnetohydrodynamic equations has been investigated. An instability is found which describes the tendency toward coalescence of parallel currents in the neighboring islands. It is expected that this instability will proceed at a fast hydromagnetic rate as long as the forces driving ...
J. M. Finn, P. K. Kaw
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Nuclear Fusion, 2023 Analysis of a multi-scenario database of over 13 000 DIII-D H-mode discharges shows that the $m,n = 2,1$ magnetic islands are dominantly pressure gradient driven, stochastically triggered non-linear instabilities at all edge safety factor ( $q_\text{95}$
L. Bardóczi, N.J. Richner, N.C. Logan
doaj +1 more source
Radial localization of electron temperature pedestal and ELM-like events using ECE measurements at Wendelstein 7-X [PDF]
EPJ Web of Conferences, 2023 A magnetic configuration scan was performed at Wendelstein 7-X stellarator by varying the rotational transform to analyze the plasma confinement for magnetic configurations with different edge magnetic island locations and sizes.
Chaudhary N. +7 more
doaj +1 more source