A principal pressure limit in tokamaks is set by the onset of neoclassical tearing modes
(NTMs), which are destabilized and maintained by helical perturbations to the pressure …

The physics model of electron cyclotron heating (ECH) and current drive (ECCD) is
becoming well validated through systematic comparisons of theory and experiment. This …

Noninductive current drive has been performed in the tokamak ASDEX upgrade by injection
of radiofrequency waves at the second harmonic of the electron-cyclotron frequency in order …

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 …

The development of techniques for neoclassical tearing mode (NTM) suppression or
avoidance is crucial for successful high beta/high confinement tokamaks. Neoclassical …

The reduction of neoclassical tearing modes by ECCD is demonstrated experimentally. It is
shown that with an averaged ECCD power of only 4-8% of the total heating power injected …

Neoclassical tearing modes (NTMs) will be the principal limit on performance in ITER in the
standard scenario, which has beta well below the ideal kink limit. Measurements of island …

Abstract Korea Superconducting Tokamak Advanced Research (KSTAR) program is
strongly focused on solving the scientific and technological issues in steady-state high …

Green's-function techniques are used to calculate electron cyclotron current drive ECCD
efficiency in general tokamak geometry in the low-collisionality regime. Fully relativistic …

The first suppression of the important and deleterious m= 2/n= 1 neoclassical tearing mode
(NTM) is reported using electron cyclotron current drive (ECCD) to replace …