A Particle-Fluid Hybrid Modeling of Neutral Gas Flow Generation from a CT Neutralization Fuel-Injector

The feasibility of compact torus (CT) neutralization fuel injection method is studied by a simulation model using particle and MHD hybrid techniques. The neutralization process is simulated by using rate-coefficients. The magnetic and electric fields are found to respond sluggishly to the neutralization process. Slow ions generated by charge-exchange have been added to the model, although the CT neutralization process is not significantly affected by this.