Collisionality scaling of the tokamak density limit: data-driven analysis, cross-device prediction, and real-time avoidanceITER Session
67th Annual Meeting of the APS Division of Plasma Physics, Long Beach, California
A summary of the full density-limit program: the multi-machine database spanning Alcator C-Mod, ASDEX Upgrade, DIII-D, JET, and TCV; the dimensionless collisionality boundary derived from it; how well that boundary transfers across devices; and the DIII-D experiments demonstrating real-time avoidance by feedback on machine-learned risk metrics.