APPLICATIONS OF NONRESONANT RF FORCES FOR THE IMPROVEMENT OF TOKAMAK REACTOR PERFORMANCE

The application of radiofrequency (RF) forces to a tokamak divertor pl asma for the improvement of its relevance to reactors is proposed and studied. An RF field is applied to the divertor region of a tokamak by use of wave guide launchers in a way that is suitable for a reactor e nvironment. Since the ponderomotive force is dependent on the charge t o mass ratio of the ions, various useful applications are considered. They cover some of the key issues in recent research towards the devel opment of nuclear fusion: reduction of the heat load on the divertor p late, improvement of the tritium inventory, impurity control and heliu m ash removal.