PPPL celebrates role in first research plasma on W7-X stellarator in Germany

December 22, 2015

Scientists from the U.S. Department of Energy's Princeton Plasma Physics Laboratory (PPPL) have reason to celebrate the first plasma of the Wendelstein 7-X (W7-X) stellarator at the Max Planck Institute in Greifswald, Germany earlier this month. The Laboratory has designed and contributed major components to the device and is collaborating on research. Three PPPL physicists attended the December 10 event.

PPPL leads the U.S. collaboration with W7-X, which is funded by $4 million from the Department of Energy's Office of Science. Collaborators include researchers from Los Alamos National Laboratory and Oak Ridge National Laboratory, as well as researchers and students from Massachusetts Institute of Technology, the University of Wisconsin, and the University of Auburn.

The W7-X stellarator is the largest and most advanced fusion experiment of its kind in the world and could yield promising solutions to some of the most difficult challenges in developing fusion energy.

Stellarators are fusion devices that use twisting, potato chip-shaped magnetic coils to confine the plasma that fuels fusion reactions in a three-dimensional and steady-state magnetic field. The W7-X is planned to be the first optimized stellarator to confine a hot plasma in a steady state for up to 30 minutes. In doing so, it could demonstrate that an optimized stellarator could be a model for future fusion reactors.

PPPL's contributions to the W7-X include: PPPL physicists who have worked extensively on W7-X include:
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PPPL, on Princeton University's Forrestal Campus in Plainsboro, N.J., is devoted to creating new knowledge about the physics of plasmas -- ultra-hot, charged gases -- and to developing practical solutions for the creation of fusion energy. Results of PPPL research have ranged from a portable nuclear materials detector for anti-terrorist use to universally employed computer codes for analyzing and predicting the outcome of fusion experiments. The Laboratory is managed by the University for the U.S. Department of Energy's Office of Science, which is the largest single supporter of basic research in the physical sciences in the United States, and is working to address some of the most pressing challenges of our time. For more information, please visit science.energy.gov.

DOE/Princeton Plasma Physics Laboratory

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