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Journal Articles Nuclear Fusion Year : 2017

The $\bf {E × B}$ staircase of magnetised plasmas

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Abstract

We show that a class of near-marginal and low-collisional magnetised plasmas naturally evolve into a globally organised state dubbed the $\bf {E × B}$ staircase’. A key signature of this self-organised state is the containment of avalanche activity, detrimental for confinement, by a series of microbarriers for transport, the staircase steps, beneficial for confinement. Conditions for existence of the $\bf {E × B}$ staircase, impact on transport and confinement and robustness in parameter space are discussed
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Dates and versions

cea-01649981 , version 1 (28-11-2017)

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Guilhem Dif-Pradalier, G. Hornung, X. Garbet, Ph. Ghendrih, V. Grandgirard, et al.. The $\bf {E × B}$ staircase of magnetised plasmas. Nuclear Fusion, 2017, 57, pp.066026. ⟨10.1088/1741-4326/aa6873⟩. ⟨cea-01649981⟩
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