The reversed field pinch

L Marrelli, P Martin, ME Puiatti, JS Sarff… - Nuclear …, 2021 - iopscience.iop.org
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 …

Fluctuation and transport reduction in a reversed field pinch by inductive poloidal current drive

JS Sarff, SA Hokin, H Ji, SC Prager, CR Sovinec - Physical review letters, 1994 - APS
An auxiliary poloidal inductive electric field applied to a reserved field pinch plasma reduces
the current density gradient, slows the growth of m= 1 tearing fluctuations, suppresses their …

Upgrades of the RFX-mod reversed field pinch and expected scenario improvements

L Marrelli, R Cavazzana, D Bonfiglio, M Gobbin… - Nuclear …, 2019 - iopscience.iop.org
RFX-mod is a Reversed Field Pinch device that allowed performing experiments in regimes
with a plasma current up to 2 MA, thanks to its MHD active control system. Experiments have …

Overview of quasi-single helicity experiments in reversed field pinches

P Martin, L Marrelli, G Spizzo, P Franz… - Nuclear …, 2003 - iopscience.iop.org
We report the results of an experimental and theoretical international project dedicated to
the study of quasi-single helicity (QSH) reversed field pinch (RFP) plasmas. The project has …

Increased Confinement and by Inductive Poloidal Current Drive in the Reversed Field Pinch

JS Sarff, NE Lanier, SC Prager, MR Stoneking - Physical review letters, 1997 - APS
With the addition of inductive poloidal current drive for current profile control in the Madison
Symmetric Torus (MST) reversed field pinch, the magnetic fluctuation amplitude halves …

Tokamak plasmas with density up to 10 times the greenwald limit

NC Hurst, BE Chapman, JS Sarff, AF Almagri… - Physical Review Letters, 2024 - APS
Current-carrying, toroidal laboratory plasmas typically cannot be sustained with an electron
density above the empirical Greenwald limit. Presented here are tokamak experiments in the …

Ion heating and magnetohydrodynamic dynamo fluctuations in the reversed‐field pinch

E Scime, M Cekic, DJ Den Hartog, S Hokin… - Physics of Fluids B …, 1992 - pubs.aip.org
Ion temperatures have been measured in the Madison Symmetric Torus (MST)[Dexter et al.,
Fusion Technol. 19, 131 (1991)] reversed‐field pinch (RFP) with a five channel charge …

On the role of mode resonances in regulating zonal-flow-moderated plasma microturbulence

PY Li, MJ Pueschel, PW Terry, GG Whelan - Nuclear Fusion, 2023 - iopscience.iop.org
The onset of turbulent heat transport at a higher temperature gradient than the critical
gradient of linear instability, known as the Dimits shift, is a recurring feature of nonlinear …

Mass-dependent ion heating during magnetic reconnection in a laboratory plasma

G Fiksel, AF Almagri, BE Chapman, VV Mirnov, Y Ren… - Physical review …, 2009 - APS
Noncollisional ion heating in laboratory and astrophysical plasmas and the mechanism of
conversion of magnetic energy to ion thermal energy are not well understood. In the …

Experimental-like helical self-organization in reversed-field pinch modeling

D Bonfiglio, M Veranda, S Cappello, DF Escande… - Physical review …, 2013 - APS
We report the first nonlinear three-dimensional magnetohydrodynamic (MHD) numerical
simulations of the reversed-field pinch (RFP) that exhibit a systematic repetition of …