300 km/s Plasma Accelerator for Fuelling

Abstract

The Compact Toroid Fueller (CTF), at the University of Saskatchewan. will inject high-speed, dense Spheromak plasmoids into the STOR-M tokamak and the Tokamak de Varennes (TdeV) to examine the feasibility of this approach as a fueller for future tokamak reactors. Compact Toroid (CT) formation and acceleration at the RACE device at the Lawrence Livermore National Laboratory has shown that CT-plasmoid velocities sufficient for center fuelling fusion reactors can be achieved by magnetized coaxial accelerators. The CTF injector will test theories on CT-tokamak interaction and fuelling by the injection of CT-plasmoids into the STOR-M and TdeV tokamaks. Among the questions to be addressed are the repetition-rate requirements for future injectors, the bootstrap current enhancement factor, CT fuel confinement times, impurity effects, plasma heating, injector electrical efficiency and gas load to the tokamak following CT injection.