Plasma-facing materials

Rajesh Maingi, a world-renowned expert on the physics of plasma, has been named to co-lead a national program to unify research on liquid metal components for future tokamaks, doughnut-shaped fusion facilities. Maingi, who heads research on boundary physics and plasma-facing components at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL), will coordinate the three-year project in conjunction with Oak Ridge National Laboratory and the University of Illinois at Urbana-Champaign.

Lithium, the light silvery metal used in everything from pharmaceutical applications to batteries that power your smart phone or electric car, could also help harness on Earth the fusion energy that lights the sun and stars. Lithium can maintain the heat and protect the walls inside doughnut-shaped tokamaks that house fusion reactions, and will be used to produce tritium, the hydrogen isotope that will combine with its cousin deuterium to fuel fusion in future reactors.

Major developments in the use of lithium to improve the performance of fusion plasmas — the hot, charged state of matter composed of free electrons and atomic nuclei that fuels fusion reactions — have earned a trio of physicists the 2018 outstanding research awards from the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL). Scientists around the world are seeking to replicate on Earth the fusion that drives the sun and stars to produce a virtually inexhaustible supply of energy to generate electricity.

More than 135 researchers and students from the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) presented their latest findings at the 60th annual meeting of the American Physical Society Division of Plasma Physics — a worldwide gathering focused on fundamental plasma science research and discoveries. Some 1,700 participants from more than two dozen countries joined the November 5-to-9 event in Portland, Oregon, presenting posters and talks on topics ranging from astrophysical plasmas to nanotechnology to magnetic confinement fusion experiments.