Analytic modeling of axisymmetric disruption halo currents

摘要: Currents which can flow in plasma facing components during disruptions pose a challenge to the design of next generation tokamaks. Induced toroidal eddy currents and both induced conducted poloidal “halo” produce design-limiting electromagnetic loads. While induction passive structures is well-understood phenomenon, driving terms scalings for flowing on open field lines are less well established. A model halo current evolution presented by decay change enclosed flux while being convected into from core motion. Fundamental physical processes described simplified analytic version model. The peak axisymmetric found depend characteristics quench, including machine dimensions, resistivities, safety fac...