IMPORTANCE OF RADIAL ELECTRIC FIELDS FOR MAGNETICALLY CONFINED PLASMAS
( Pp. 82-90)

More about authors
Guido Van Oost professor kafedry prikladnoy fiziki Gentskogo universiteta, Belgiya; professor-sovmestitel kafedry fiziki plazmy NIYaU «MIFI», Moskva, Rossiya, professor-sovmestitel NIU «Moskovskiy energeticheskiy institut», Moskva, Rossiya.
Department of Applied Physics, Ghent University, Belgium; National Research Nuclear University «MEPHI»; National Research University «Moscow Power Engineering Institute»
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Abstract:
The importance of radial electric fields in magnetic confinement devices is outlined. It has been demonstrated in limiter - and divertor tokamaks, helical devices and mirror machines with a variety of discharge - and heating conditions as well as edge biasing schemes that improved confinement is often associated with strongly radially varying profiles of Er, and that E × B velocity shear turbulence stabilisation is a robust and universal mechanism which plays a major role in the formation and sustainment of transport barriers in magnetic confinement devices. Emphasis is put on the relation between the generation of electron internal transport barriers and the concept of profile consistency developed by Yu.N. Dnestrovskij, in which the plasma pressure and temperature profiles have a tendency to organize themselves into an ‘universal’ profile shape, in agreement with the plasma minimum free energy principle.
How to Cite:
Guido V.O., (2018), IMPORTANCE OF RADIAL ELECTRIC FIELDS FOR MAGNETICALLY CONFINED PLASMAS. Computational Nanotechnology, 1 => 82-90.
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Keywords:
magnetic confinement, the electric field, Shire speed, the canonical profiles.


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