In this paper, we review the thermal plasma confinement and transport properties observed
and predicted in low aspect ratio tokamaks, or spherical tokamaks (STs), which can depart …

The spherical torus or spherical tokamak (ST) is a member of the tokamak family with its
aspect ratio (A= R 0/a) reduced to A∼ 1.5, well below the normal tokamak operating range …

MAST plasmas with a safety factor above unity and a profile with either weakly reversed
shear or broad low-shear regions, regularly exhibit long-lived saturated ideal …

The JT-60SA device has been designed as a highly shaped large superconducting tokamak
with a variety of plasma actuators (heating, current drive, momentum input, stability control …

ABSTRACT A new Doppler backscattering (DBS) system has been installed and tested on
the MAST-U spherical tokamak. It utilizes eight simultaneous fixed frequency probe beams …

A model for the non-inductive initiation of a closed flux surface observed in electron
cyclotron (EC) heated toroidal plasmas is presented. First, a pressure-driven equilibrium …

Abstract Mega Ampere Spherical Tokamak (MAST) pedestal data has been analysed, where
a pedestal database of 892 shots was obtained, using the upgraded MAST Thomson …

The electron Bernstein wave (EBW) is typically the only wave in the electron cyclotron (EC)
range that can be applied in spherical tokamaks for heating and current drive (H&CD) …

In this paper we study the effects of poloidal and toroidal rotation, and anisotropy in
tokamaks. To resolve these effects from uncertainties in the data, we introduce a Bayesian …

On MAST studies of the profile evolution of the electron temperature (T e), electron density
(ne), radial electric field (E r) as well as novel measurements of the ion temperature (T i) and …