PF Coil System Comparisons for a Compact Ignition Device

ABSTRACT

Preliminary designs for the poloidal field coil system for several alternative concepts for the Ignition Studies Project have been analyzed. Options include both a limiter and divertor configuration with PF coils located internal to the TF coil, external to the TF coil, and a mixture of internal and external (hybrid) coils. The effect on the system parameters of ampere-meters, stored and dissipated energy, and peak requirements are reported. The all internal coil configuration for the diverted plasma has significantly lower amperemeters, energy, and power requirements. However, internal coils are disadvantageous from the remote maintenance standpoint.