Nonlinear evolution and control of neo-classical tearing mode in reversed magnetic shear tokamak plasmas

W Zheng-Xiong, L Tong, W Lai - Reviews of Modern Plasma Physics, 2022 - Springer
The reversed magnetic shear (RMS) configuration is believed to be one of the most
promising advanced scenarios to achieve steady-state operation in the future large-scale …

Suppression of tearing modes by radio frequency current condensation

AH Reiman, NJ Fisch - Physical review letters, 2018 - APS
Currents driven by radio frequency (rf) waves in the interior of magnetic islands can stabilize
deleterious tearing modes in tokamaks. Present analyses of stabilization assume that the …

First principles fluid modelling of magnetic island stabilization by electron cyclotron current drive (ECCD)

O Février, P Maget, H Lütjens, JF Luciani… - Plasma Physics and …, 2016 - iopscience.iop.org
Tearing modes are MagnetoHydroDynamics (MHD) instabilities that reduce the performance
of fusion devices. They can however be controlled and suppressed using electron cyclotron …

Influence of driven current on resistive tearing mode in Tokamaks

S Wang, ZW Ma, W Zhang - Physics of Plasmas, 2016 - pubs.aip.org
The influence of driven current on the m/n= 2/1 resistive tearing mode is studied
systematically using a three-dimensional toroidal magnetohydrodynamic code. A uniform …

[HTML][HTML] Pulsed RF schemes for tearing mode stabilization

S Jin, NJ Fisch, AH Reiman - Physics of Plasmas, 2020 - pubs.aip.org
The RF stabilization of tearing modes with current condensation has the potential to
increase stabilization efficiency and loosen power localization requirements. Such benefits …

Localized compressional self-heating in magnetic islands

D Villa, N Dubuit, O Agullo, A Poyé, X Garbet… - Journal of Plasma …, 2022 - cambridge.org
A spontaneous heating process is found to arise in a system where a magnetic island is
present due to a linearly unstable tearing mode. The parity, the relative phases and the …

[HTML][HTML] RF current condensation in magnetic islands and associated hysteresis phenomena

E Rodriguez, AH Reiman, NJ Fisch - Physics of Plasmas, 2019 - pubs.aip.org
The nonlinear RF current condensation effect suggests that magnetic islands might be well
controlled with broader deposition profiles than previously thought possible. To assess this …

[HTML][HTML] RF current condensation in the presence of turbulent enhanced transport

E Rodriguez, AH Reiman, NJ Fisch - Physics of Plasmas, 2020 - pubs.aip.org
Sharp temperature gradients in a magnetically confined plasma can lead to turbulent motion
of the plasma. This turbulence in turn enhances the transport of heat across magnetic field …

Numerical modelling on stabilizing large magnetic island by RF current for disruption avoidance

X Wang, Q Yu, X Zhang, S Zhu, X Wang, B Wu - Nuclear Fusion, 2017 - iopscience.iop.org
Numerical modelling on tearing mode stabilization by RF current due to electron cyclotron
current drive (ECCD) has been carried out for the purposes of disruption avoidance …

Control of multi-helicity neo-classical tearing modes by electron cyclotron current drive in tokamak plasmas

T Liu, J Wang, L Wei, ZX Wang - Nuclear Fusion, 2020 - iopscience.iop.org
The effect of electron cyclotron current drive (ECCD) on the multi-helicity neo-classical
tearing modes (2/1 and 3/2 NTMs) in tokamak plasmas is numerically studied by adopting a …