19th International Conference On Numerical Simulation of Plasmas, 12-15 de Julho de 2005, Nara, Japão

	On the Computation of Tokamak Equilibria with Negative Core Toroidal Current
	Paulo Rodrigues e João P. S. Bizarro
	Resumo
	A numerical scheme is presented which is able to solve the Grad-Shafranov (GS) equation in tokamak plasmas with toroidal current reversal for input proles that are not restricted to any particularly chosen models. Its exibility is subsequently tested, computing a GS equilibrium with o-axis negative toroidal current density strong enough to generate two concentric current-reversal surfaces.