Simulation of an ELM triggered by a vertical magnetic kick at ITER

The figure shows the plasma density filaments arising during an ELM crash at ITER. An ELM was triggered from an initially stable plasma with a small vertical displacement (of about 6 cm). The displacement was induced by an imposed current wave-form in the vertical stability coils that control the plasma position. The fast vertical motion induces axisymmetric edge currents that destabilize peeling-ballooning modes and lead to the ELM crash. The simulation takes into account the effect of the ITER vacuum vessel and other essential passive conductors for plasma vertical stability. For more information see here. (c) Javier Artola & JOREK Team.