New device improves tokamak efficiency

Scientists at the Princeton Plasma Physics Laboratory (PPPL) have designed a new device that uses liquid lithium to improve the performance of tokamaks.
Known as a liquid lithium limiter, it circulates the molten metal around the tokamak walls, assisting fusion by preventing the plasma from cooling down. The device, described in the journal Nuclear Fusion, has been tested at the Experimental Advanced Superconducting Tokamak (EAST) in Hefei, China.
The white-hot limiter glowing in contact wi