This paper reviews the research on the reversed field pinch (RFP) in the last three decades.
Substantial experimental and theoretical progress and transformational changes have been …

Nonlinear simulations based on multiple NSTX discharge scenarios have progressed to
help differentiate unique instability mechanisms and to validate with experimental …

Microtearing modes (MTMs) are unstable in the shallow gradient region just inside the top of
the pedestal in the spherical tokamak experiment MAST, and may play an important role in …

Thermal energy confinement times in National Spherical Torus Experiment (NSTX)
dimensionless parameter scans increase with decreasing collisionality. While ion thermal …

Linear gyrokinetic simulations are performed based on a high collisionality NSTX discharge
that is part of dimensionless confinement scaling studies. In this discharge, the microtearing …

Nonlinear fluid modelling predictions of qualitatively new self-organized helical states in the
reversed-field pinch configuration are confirmed by experiments in the RFX-mod device. The …

This paper reports the main recent results of the RFX-mod fusion science activity. The RFX-
mod device is characterized by a unique flexibility in terms of accessible magnetic …

Recent results on electromagnetic turbulence from gyrokinetic studies in different magnetic
configurations are overviewed, detailing the physics of electromagnetic turbulence and …

The problem of the linear microtearing mode in a slab magnetised plasma, and its
connection to kinetic reconnecting modes, is addressed. Electrons are described using a …

Abstract High current (I p= 1–1.7 MA) operations in the ohmic reversed field pinch RFX-mod
spontaneously access the quasi-single helicity (QSH) regime, in which the magnetic …