Figure 1 (IMAGE)

American Physical Society

Figure 1

Caption

By shooting pellets of frozen deuterium (an isotope of hydrogen) into a fusion reactor, scientists at the DIII-D National Fusion Facility in San Diego have been able to control instabilities in the magnetic field that holds the fusion plasma together. The graphs at right illustrate the measured time history of the magnetic island magnitude and simulations of turbulence inside the island before and after a pellet injection.

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Composite image by the author; Graphics courtesy General Atomics and Oak Ridge National Laboratory.

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