Figure-eight shaped tubes that confine hot plasma with external magnetic fields, developed by Lyman Spitzer in 1950 at the lab that became the PPPL.
More than 3,000 people flocked to PPPL’s Open House on June 1 where they were treated to rare glimpses of every corner of the Laboratory – from the machine shop water jets to tours of the National Spherical Torus Experiment Upgrade (NSTX-U).
About 175 PPPL staff members, including some family members, volunteered their time on a hot, sunny Saturday for the event, whether it was handing out snacks and water bottles, giving passersby directions or staffing the “Ask the Physicist,” and “Ask the Engineer” booth in the D Site parking lot.
David Gates is a principal research physicist for the advanced projects division of PPPL, and the stellarator physics leader at the Laboratory. In the latter capacity he leads collaborative efforts with the Wendelstein 7-X and Large Helical Device stellarator projects in Germany and Japan, respectively.
Michael Zarnstorff had been deputy director of research at PPPL since 2009 and a physicist at PPPL since 1984. As deputy director, he oversaw physics experiments at PPPL and collaborations on fusion experiments around the world. Zarnstorff graduated from the University of Wisconsin with a Ph.D. in physics in 1984.
Stefan Gerhardt is head of Experimental Research Operations for the National Spherical Torus Experiment- Upgrade (NSTX-U). He operates numerous diagnostics on NSTX-U, along with designing plasma control schemes and running physics experiments. He has previously worked on a wide variety of fusion machines, including spherical tokamaks, stellarators, and field reversed configurations.
Physicists have discovered a possible solution to a mystery that has long baffled researchers working to harness fusion. If confirmed by experiment, the finding could help scientists eliminate a major impediment to the development of fusion as a clean and abundant source of energy for producing electric power.
Princeton Plasma Physics Laboratory is a U.S. Department of Energy national laboratory managed by Princeton University.
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