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SPARC and the High Magnetic Field Path to Fusion Energy
Speaker: Martin Greenwald - MIT-PSFC
Abstract: SPARC tokamak is currently under design as a mid-sized, deuterium-tritium (DT) burning magnetic confinement experiment. By employing novel high-temperature superconducting magnets, it will operate at 12.2 T in a device of a size and configuration similar to many experiments that have been deployed in the world’s fusion research program. Operation at high field will however, allow SPARC to be the world’s first experiment to create and confine a plasma that produces net fusion power. The performance to satisfy that mission has been defined as a fusion gain, Q > 2 and PFusion > 50 MW which would be comfortably more than the 25 MW of RF input power. Achieving this goal, we believe, would be a sufficient demonstration to place fusion firmly into the world’s energy plans. Significant margin against uncertainties in performance assumptions has been built into the design such that well-established physics predicts that SPARC could produce more than 140 MW of fusion power with Q > 10. Successful operation of SPARC would inform and enable the construction of a fusion pilot plant – a device with a major radius of about 3 m, producing over 500 MW of fusion power.
Host: Piers Coleman