Results 31 to 40 of about 6,012 (210)
Charge dependence of neoclassical and turbulent transport of light impurities on MAST [PDF]
, 2015 Carbon and nitrogen impurity transport coefficients are determined from gas puff experiments carried out during repeat L-mode discharges on the Mega-Amp Spherical Tokamak (MAST) and compared against a previous analysis of helium impurity transport on ...
Casson, F. J. +10 more
core +2 more sources
Gyrokinetic Studies of Microinstabilities in the RFP
, 2013 An analytic equilibrium, the Toroidal Bessel Function Model, is used in conjunction with the gyrokinetic code GYRO to investigate the nature of microinstabilities in a reversed field pinch (RFP) plasma.
Carmody, Daniel +2 more
core +1 more source
Convectively driven shear and decreased heat flux [PDF]
, 2014 We report on direct numerical simulations of two-dimensional, horizontally periodic Rayleigh-B\'enard convection, focusing on its ability to drive large-scale horizontal flow that is vertically sheared.
Flierl, Glenn R. +3 more
core +1 more source
Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.Abstract The nonlinear development of ballooning instability and the subsequently induced plasmoid formation in the near‐Earth magnetotail demonstrated in MHD simulations has been proposed as a potential trigger mechanism for substorm onset over the past decade, and their connections to the in situ satellite and ground all‐sky auroral optical ...
Ping Zhu +4 more
wiley +1 more source
The optimisation of the STEP electron cyclotron current drive concept
Nuclear FusionA fusion reactor based on the spherical tokamak is very likely to be completely non-inductive for the majority of the plasma ramp-up and steady-state phases, due to the limitations imposed on the central coil assemblies by the compact design.
Simon Freethy +6 more
doaj +1 more source
, 2012 Plasma equilibria reconstructed from the Mega-Amp Spherical Tokamak (MAST) have sufficient resolution to capture plasma evolution during the short period between edge-localized modes (ELMs).
Dickinson, D. +5 more
core +1 more source
A gyrokinetic model for the plasma periphery of tokamak devices
, 2020 A gyrokinetic model is presented that can properly describe strong flows, large and small amplitude electromagnetic fluctuations occurring on scale lengths ranging from the electron Larmor radius to the equilibrium perpendicular pressure gradient scale ...
Frei, B. J., Jorge, R., Ricci, P.
core +1 more source
Observations of Reduced Electron Gyroscale Fluctuations in National Spherical Torus Experiment H-Mode Plasmas with Large E X B Flow Shear [PDF]
, 2019 Electron gyroscale fluctuation measurements in National Spherical Torus Experiment H-mode plasmas with large toroidal rotation reveal fluctuations consistent with electron temperature gradient (ETG) turbulence.
Bell, RE +11 more
core +1 more source
AI Magazine, Volume 47, Issue 1, Spring 2026.Abstract This article examines how data readiness for AI principles apply to large scientific datasets used to train foundation models. We analyze archetypal workflows across four representative domains—climate, nuclear fusion, life sciences, and materials—to identify common preprocessing patterns and domain‐specific constraints.
Wesley Brewer +6 more
wiley +1 more source
Relaxation Phenomena in Spherical Tokamak Plasma [PDF]
Progress of Theoretical Physics Supplement, 2000 Dynamics of a relaxation phenomenon observed in Spherical Tokamak experiments, which is called Internal Reconnection Event (IRE), is studied by magnetohydrodynamic computer simulation. Coupling between the torus magnetic field and the external field induced by nonlinear growth of pressure driven instabilities, and resultant formation of tunnel-like ...
Takaya Hayashi +2 more
openaire +1 more source