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A team of scientists working at the U.S. Department of Energy's Princeton Plasma Physics Laboratory (PPPL) has found that increasing the amount of lithium coating in the wall of an experimental fusion reactor greatly improves the ability of experimentalists to contain the hot, ionized gas known as plasma. Adding more lithium also enhances certain plasma properties aiding the reaction, the researchers found.

Stewart Prager, a well-known plasma physicist and fusion scientist with a distinguished career and a record of discovery at the University of Wisconsin, arrived in January 2009 as director of PPPL, the United States’ leading magnetic fusion facility. Fusion energy, which is fueled by hot gases of charged particles known as plasma, has the potential to become a safe, clean and abundant energy source for the future. For nearly 60 years, Princeton has been a world leader in research on magnetic fusion energy due to efforts by scientists and engineers at PPPL