On Greewald density limit in H-mode

Tokar, M. Z.

doi:10.1063/1.3077680

Journal Article

PreJuSER-4646

On Greewald density limit in H-mode

Tokar, M. Z.FZJ*

2009
American Institute of Physics [S.l.]

Physics of plasmas 16, 020704 (2009) [10.1063/1.3077680]

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Please use a persistent id in citations: http://hdl.handle.net/2128/18182 doi:10.1063/1.3077680

Abstract: The experimental Greenwald density limit in tokamak H-mode is explained from the requirements that in the edge transport barrier the radial pressure gradient does not exceed the ballooning stability threshold and the plasma collisionality corresponds to the transition from the plateau regime of neoclassical transport to the Pfirsch-Schluter one, where the edge temperature and plasma energy content decrease dramatically with increasing density.

Keyword(s): J ; plasma boundary layers (auto) ; plasma density (auto) ; plasma transport processes (auto) ; Tokamak devices (auto)