Internal transport barriers in tokamak plasmas are explored in order to improve confinement
and stability beyond the reference scenario, used for the ITER extrapolation, and to achieve …

Neoclassical tearing modes are one of the most serious concerns for operation on a next-
step tokamak device. The modes occur on present tokamaks at normalized pressure (β N) …

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 primary objective of these lecture notes is to present the basic theories and analytical
methods of plasma physics and to provide the recent status of fusion research for graduate …

A tearing mode with m= 3 and n= 2, destabilized in the steady state high-β p H-mode
discharges with edge localized mode (ELM), was completely stabilized by local heating and …

Error field induced modes have been a significant concern for next step devices.
Experiments on JET, using the lower saddle coils to simulate such fields, have determined …

The islands from tearing modes driven unstable and sustained by the helically perturbed
neoclassical bootstrap current often provide the practical limit to long-pulse, high …

Confining high-pressure plasmas using modest magnetic field in a small-size device has
been a long-standing goal of magnetic fusion energy research. The spherical torus ST, or …

The onset criterion for radiation driven islands [PH Rebut and M. Hugon, Plasma Physics
and Controlled Nuclear Fusion Research 1984: Proc. 10th Int. Conf. London, 1984,(IAEA …

The theory of tearing mode stabilization in toroidal plasmas by RF driven currents that are
modulated in phase with the island rotation is investigated. A time-scale analysis of the …