Full Transport Treatment of ITER Burn Control Scenarios

摘要

Reference operating scenarios for the physics phase of the InternationalThermonuclear Experimental Reactor (ITER) rely on low temperature, high density operation for good divertor performance. Operating points in the region are usually thermally unstable and active burn control is required to maintain operation at the selected operating point. The authors present a series of transport simulations of ITER burn control scenarios with modulated neutral beam heating, using the 1-1/2D code WHIST. The results indicate that control is possible, except at very high densities where off-axis heating due to the poor beam penetration makes control difficult, especially for negative perturbations.