2011
DOI: 10.1063/1.3596536
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Edge plasma boundary layer generated by kink modes in tokamaks

Abstract: This paper describes the structure of the electric current generated by external kink modes at the plasma edge using the ideally conducting plasma model. It is found that the edge current layer is created by both wall touching and free boundary kink modes. Near marginal stability, the total edge current has a universal expression as a result of partial compensation of the δ-functional surface current by the bulk current at the edge. The resolution of an apparent paradox with the pressure balance across the pla… Show more

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Cited by 17 publications
(24 citation statements)
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“…The reason, as Zakharov has noted, 11,62,63 is that if this were not true, the voltage along the open magnetic field lines just outside the plasma-from one intersection with the chamber walls to the other-would be so large that whatever current would be required to restore equilibrium would arise.…”
Section: Plasma Force Balancementioning
confidence: 99%
See 2 more Smart Citations
“…The reason, as Zakharov has noted, 11,62,63 is that if this were not true, the voltage along the open magnetic field lines just outside the plasma-from one intersection with the chamber walls to the other-would be so large that whatever current would be required to restore equilibrium would arise.…”
Section: Plasma Force Balancementioning
confidence: 99%
“…The amplitude of the current, I w , through the chamber walls-either the halo or the eddy current-that is required to maintain force balance when the plasma is displaced a distance n towards the chamber walls has been shown by Zakharov to be 11,62,63 …”
Section: Plasma Force Balancementioning
confidence: 99%
See 1 more Smart Citation
“…Note that we define "halo current" to include any current that links both the plasma and conducting structures; this would include the "Hiro current" of Refs. [34,39].…”
Section: : Introduction and Backgroundmentioning
confidence: 99%
“…It is the purpose of this paper, however, to study a fourth major disruption consequence: the phenomenon of "halo currents" [2,3,[22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40]. The tokamak concept generally optimizes toward large elongation of the plasma cross-section, essentially due to the additional safety factor that such plasma boundary shaping provides [41][42][43][44].…”
Section: : Introduction and Backgroundmentioning
confidence: 99%