A three-barrel prototype was developed for delivery of pellets to the plasma. Photo: US ITER/ORNL View full media

Pellets tested for disruption mitigation range from 4.5 mm to 12.5 mm. Photo: US ITER/ORNL View full media

A view of the different barrels of the shattered pellet injection prototype. Photo: US ITER View full media

Guide tube selector test unit prototype guides pellets to specific locations in the plasma. Photo: US ITER/ORNL View full media

A view of the different barrels of the shattered pellet injection prototype. Photo: US ITER View full media

Shattered pellet injection component installed in a test stand at ORNL. Photo: US ITER/ORNL View full media