Local up–down asymmetrically shaped equilibrium model for tokamak plasmas. (7th September 2018)

• Record Type: Journal Article
• Authors: Rodrigues, Paulo; Coroado, André
• Is Part Of: Nuclear fusion. Volume 58:Number 10(2018:Oct.)
• Publication Date: 2018-09-07
• Subjects: tokamaks -- MHD equilibria -- local analytical equilibria -- up–down asymmetric plasmas; Nuclear fusion -- Periodicals; 621.48405
• DOI: 10.1088/1741-4326/aada57
• Languages: English
• ISSNs: 0029-5515

Abstract

Abstract: A local magnetic equilibrium model is presented, with finite inverse aspect ratio and up–down asymmetrically shaped cross section, that depends on eight free parameters. In contrast with other local equilibria, which provide simple magnetic-surface parametrisations at the cost of complex poloidal-field flux descriptions, the proposed model is intentionally built to afford analytically tractable magnetic-field components. Therefore, it is particularly suitable for analytical assessments of equilibrium-shaping effects on a variety of tokamak-plasma phenomena.