The role of stable shear flow in suppressing turbulence and turbulent transport in plasmas
and neutral fluids is reviewed. Localized stable flow shear produces transport barriers …

The present status of zonal flow experiments is reviewed with the historical process to attain
the concept of zonal flows, which provides a new framework for understanding turbulence …

One of the scientific success stories of fusion research over the past decade is the
development of the E× B shear stabilization model to explain the formation of transport …

High fusion power experiments using DT mixtures in ELM-free H mode and optimized shear
regimes in JET are reported. A fusion power of 16.1 MW has been produced in an ELM-free …

A new tokamak confinement regime has been observed on the Tokamak Fusion Test
Reactor (TFTR) where particle and ion thermal diffusivities drop precipitously by a factor of∼ …

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 …

Peaked pressure profiles and central ion temperatures up to 20 keV are observed in DIII-D H-
mode discharges with a central region of strongly reversed magnetic shear. Short …

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

A tokamak plasma configuration is reported that simultaneously improves on the maximum
stable plasma pressure, the bootstrap current contribution, and kinetic stability to …

Studies of transport in fusion plasmas using perturbations of an equilibrium state are
reviewed. Essential differences between steady-state and perturbative transport studies are …