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A new look at density limits in tokamaks
While the results of early work on the density limit in tokamaks from the ORMAK and DITE groups have been useful over the years, results from recent experiments and the requirements for extrapolationExpand
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Density limits in toroidal plasmas
In addition to the operational limits imposed by MHD stability on plasma current and pressure, an independent limit on plasma density is observed in confined toroidal plasmas. This review attempts toExpand
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Evidence for electromagnetic fluid drift turbulence controlling the edge plasma state in the Alcator C-Mod tokamak
Plasma profiles across the separatrix and scrape-off layer (SOL) in Alcator C-Mod are examined for a range of plasma densities, currents and magnetic fields in Ohmic L-mode discharges and for aExpand
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Transport-driven Scrape-Off-Layer flows and the boundary conditions imposed at the magnetic separatrix in a tokamak plasma
Plasma profiles and flows in the low- and high-field side scrape-off-layer (SOL) regions in Alcator C-Mod are found to be remarkably sensitive to magnetic separatrix topologies (upper-, lower- andExpand
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First results from Alcator‐C‐MOD*
Early operation of the Alcator‐C‐MOD tokamak [I.H. Hutchinson, Proceedings of IEEE 13th Symposium on Fusion Engineering, Knoxville, TN, edited by M. Lubell, M. Nestor, and S. Vaughan (Institute ofExpand
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Edge radial electric field structure and its connections to H-mode confinement in Alcator C-Mod plasmas
High-resolution charge-exchange recombination spectroscopic measurements of B5+ ions have enabled the first spatially resolved calculations of the radial electric field (Er) in the Alcator C-ModExpand
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Predictions of core plasma performance for the SPARC tokamak
SPARC is designed to be a high-field, medium-size tokamak aimed at achieving net energy gain with ion cyclotron range-of-frequencies (ICRF) as its primary auxiliary heating mechanism. EmpiricalExpand
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Particle transport in tokamak plasmas, theory and experiment
The physical processes producing electron particle transport in the core of tokamak plasmas are described. Starting from the gyrokinetic equation, a simple analytical derivation is used as guidanceExpand
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Density Profile Peaking in Low Collisionality H-modes: Comparison of Alcator C-mod Data to ASDEX Upgrade/JET Scalings
Observations on Alcator C-Mod confirm and extend previous measurements from ASDEX Upgrade (AUG) and JET, where density peaking in H-mode was seen to increase as collisionality was lowered. In theExpand
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Edge turbulence imaging in the Alcator C-Mod tokamak
The two-dimensional (2D) radial vs poloidal structure of edge turbulence in the Alcator C-Mod tokamak [I. H. Hutchinson, R. Boivin, P. T. Bonoli et al., Nucl. Fusion 41, 1391 (2001)] was measuredExpand
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