As excitement builds around the first plasma, scheduled for December, on the Wendelstein 7-X (W7-X) experiment in Greifswald, Germany, PPPL physicist Sam Lazerson can boast that he has already achieved results.
Lazerson, who has been working at the site since March, mapped the structure of the magnetic field, proving that the main magnet system is working as intended. This was achieved using the trim coils that PPPL designed and had built in the United States. He presented his research at the APS Division of Plasma Physics Conference in Savannah, Georgia, on Nov. 18.
PPPL leads U.S. laboratories that are collaborating with the Max Planck Institute for Plasma Physics in experiments on the W7-X, the largest and most advanced stellarator in the world. It will be the first optimzed stellarator fusion facility to confine a hot plasma in a steady state for up to 30 minutes. In doing so, it will demonstrate that an optimized stellarator could be a model for future fusion reactors.
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