Results 21 to 30 of about 515,702 (289)

A machine-learning-based tool for last closed-flux surface reconstruction on tokamaks

open access: yesNuclear Fusion, 2023
Tokamaks allow to confine fusion plasma with magnetic fields. The prediction/reconstruction of the last closed-flux surface (LCFS) is one of the primary challenges in the control of the magnetic configuration.
Chenguang Wan   +6 more
doaj   +1 more source

Integrated study on the comprehensive magnetic-field configuration performance in the 150 kW superconducting magnetoplasmadynamic thruster

open access: yesScientific Reports, 2021
Higher magnetic fields are always favoured in the magnetoplasmadynamic thruster (MPDT) due to its superior control of the plasma profile and acceleration process.
Jinxing Zheng   +17 more
doaj   +1 more source

Periodical plasma structures controlled by external magnetic field

open access: yesPlasma Sources Science and Technology, 2017
40 ...
Schweigert I., Keidar M.
openaire   +2 more sources

Electric potential in partially magnetized E × B discharges

open access: yesAIP Advances, 2021
Ability to control the electric potential inside the plasma is promising for various applications of E × B plasma because the trajectory of particles, which meets the desired purpose, is mainly determined by the drift motions in the external electric and
June Young Kim   +3 more
doaj   +1 more source

A two-fluid helicity transport model for flux-rope merging

open access: yes, 2014
A two-fluid model for canonical helicity transport between merging flux-ropes is developed. Relative canonical helicity is defined here as the gauge invariant helicity of the canonical momentum of a given species, and represents the generalization of ...
You, Setthivoine
core   +1 more source

The mirror mode: A "superconducting'' space plasma analogue

open access: yes, 2018
We examine the physics of the magnetic mirror mode in its final state of saturation, the thermodynamic equilibrium, to demonstrate that the mirror mode is the analogue of a superconducting effect in a classical anisotropic-pressure space plasma.
Baumjohann, W., Treumann, R. A.
core   +2 more sources

A new multi line-cusp magnetic field plasma device (MPD) with variable magnetic field for fundamental plasma studies

open access: yes, 2017
One of the fundamental problems is the understanding of physics of electrostatic and electromagnetic fluctuations in multi-scale plasma turbulence. Especially so, in continuously connected plasma regions with varying degree of magnetization.
Chattopadhyay, P. K.   +4 more
core   +1 more source

Euler potentials for the MHD Kamchatnov-Hopf soliton solution [PDF]

open access: yes, 2001
In the MHD description of plasma phenomena the concept of magnetic helicity turns out to be very useful. We present here an example of introducing Euler potentials into a topological MHD soliton which has non-trivial helicity.
Biernat, Helfried K.   +2 more
core   +5 more sources

Drift kinetic theory of neoclassical tearing modes in tokamak plasmas: polarisation current and its effect on magnetic island threshold physics

open access: yesNuclear 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

Spatial symmetry breaking in single-frequency CCP discharge with transverse magnetic field

open access: yes, 2018
An independent control of the flux and energy of ions impacting on an object immersed in a plasma is often desirable for many industrial processes such as microelectronics manufacturing.
Kaganovich, Igor   +4 more
core   +1 more source

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