Pellet fuelling model validation cuts risk for reactor-scale density control

Researchers from DIFFER, the ITER Organization and CEA Cadarache have validated an upgraded WEST pellet fuelling model against real tokamak data, matching its predictions to measurements within roughly 10 percent and then extending the test into a full integrated simulation. For engineers designing pellet-based fuelling systems, the result offers a tested reference point for scaling density control from present machines toward reactor-class devices.