In addition to the operational limits imposed by MHD stability on plasma current and
pressure, an independent limit on plasma density is observed in confined toroidal plasmas …

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 …

Edge-localized-modes (ELMs) are a ubiquitous feature of H-mode in tokamaks. When
gradients in the H-mode transport barrier grow to exceed the MHD stability limit the ELM …

Progress, since the ITER Physics Basis publication (ITER Physics Basis Editors et al 1999
Nucl. Fusion 39 2137–2664), in understanding the processes that will determine the …

Large 70Hz Type-I edge localized modes (ELMs) are converted into small 130Hz
oscillations using edge resonant magnetic perturbations (RMPs) from a coil with currents⩽ …

The understanding and predictive capability of transport physics and plasma confinement is
reviewed from the perspective of achieving reactor-scale burning plasmas in the ITER …

Observations of divertor plasma detachment in tokamaks are reviewed. Plasma detachment
is characterized in terms of transport and dissipation of power, momentum and particle flux …

High-performance and long-pulse operation is a crucial goal of current magnetic fusion
research. Here, we demonstrate a high-confinement plasma regime known as an H-mode …

Type-I edge-localized modes (ELMs) have been mitigated at the JET tokamak using a static
external n= 1 perturbation field generated by four error field correction coils located far from …

Tokamak discharges with improved energy confinement properties arising from internal
transport barriers (ITBs) have certain attractive features, such as a large bootstrap current …