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On the computation of tokamak equilibria with negative core toroidal current

Published online by Cambridge University Press:  20 December 2006

PAULO RODRIGUES  and
JOÃO P. S. BIZARRO
PAULO RODRIGUES
Affiliation:
Centro de Fusão Nuclear, Associação Euratom—IST, Instituto Superior Técnico, 1049-001 Lisboa, Portugal
JOÃO P. S. BIZARRO
Affiliation:
Centro de Fusão Nuclear, Associação Euratom—IST, Instituto Superior Técnico, 1049-001 Lisboa, Portugal
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Abstract

A numerical scheme is presented which is able to solve the Grad–Shafranov (GS) equation in tokamak plasmas with toroidal current reversal for input profiles that are not restricted to any particularly chosen models. Its flexibility is subsequently tested, computing a GS equilibrium with off-axis negative toroidal current density strong enough to generate two nested current-reversal surfaces.

Type
Papers
Information
Journal of Plasma Physics , Volume 72 , Issue 6 , December 2006 , pp. 1209 - 1213
Copyright
2006 Cambridge University Press

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