Cooling 100 million degree plasma with a hydrogen-neon mixture ice pellet

At ITER--the world's largest experimental fusion reactor, currently under construction in France through international cooperation--the abrupt termination of magnetic confinement of a high temperature plasma through a so-called "disruption" poses a major open issue. As a countermeasure, disruption mitigation techniques, which allow to forcibly cool the plasma when signs of plasma instabilities are detected, are a subject of intensive research worldwide.