Local up–down asymmetrically shaped equilibrium model for tokamak plasmas

Authors :: André Coroado
Paulo Rodrigues
Source :: Nuclear Fusion. 58:106040
Publication Year :: 2018
Publisher :: IOP Publishing, 2018.
Abstract: A local magnetic equilibrium model is presented, with finite 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 parametrizations 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.<br />6 pages, 3 figures