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A high-performance fusion regime called Super-H mode is being used on the DIII-D tokamak (US) to test methods to control heat and particle flow at the edge of the fusion plasma. 

The theoretical model for Super-H Mode was developed several years ago by researchers at General Atomics (which operates DIII-D for the US Department of Energy's Office of Science), the University of York (UK), and the Culham Centre for Fusion Energy (UK). It works by increasing temperature and pressure in the outer region of the plasma, called the pedestal. Higher pressures and temperatures at the pedestal lead to much higher fusion performance in the core.

The new approach uses advanced control algorithms and optimized methods of cooling the edge of the plasma without excessively degrading reactions in the core. The results identify a pathway for increased performance at ITER and the fusion power plants that will follow.

Read the full press release .

-- Image courtesy of General Atomics.