Three-dimensional magnetohydrodynamic equilibrium of quiescent H-modes in tokamak systems. (11th May 2016)

• Record Type: Journal Article
• Authors: Cooper, W A; Graves, J P; Duval, B P; Sauter, O; Faustin, J M; Kleiner, A; Lanthaler, S; Patten, H; Raghunathan, M; Tran, T-M; Chapman, I T; Ham, C J
• Is Part Of: Plasma physics and controlled fusion. Volume 58:Number 6(2016:Jun.)
• Publication Date: 2016-05-11
• Subjects: 3d equilibria -- ideal saturated kink/peeling modes -- current ribbon -- edge harmonic oscillation; Plasma (Ionized gases) -- Periodicals; Controlled fusion -- Periodicals; 530.44
• DOI: 10.1088/0741-3335/58/6/064002
• Languages: English
• ISSNs: 0741-3335

Abstract

Abstract: Three dimensional free boundary magnetohydrodynamic equilibria that recover saturated ideal kink/peeling structures are obtained numerically. Simulations that model the JET tokamak at fixed 〈 β 〉 = 1.7 % with a large edge bootstrap current that flattens the q -profile near the plasma boundary demonstrate that a radial parallel current density ribbon with a dominant m / n = 5/1 Fourier component at I t = 2.2 MA develops into a broadband spectrum when the toroidal current I t is increased to 2.5 MA.