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Fusion energy: Progress, partnerships, and the path to deployment
Over the past decade, fusion energy has moved decisively from scientific aspiration toward a credible pathway to a new energy technology. Thanks to long-term federal support, we have significantly advanced our fundamental understanding of plasma physics—the behavior of the superheated gases at the heart of fusion devices. This knowledge will enable the creation and control of fusion fuel under conditions required for future power plants. Our progress is exemplified by breakthroughs at the National Ignition Facility and the Joint European Torus.
J. Mandrekas, W.M. Stacey, H. He
Fusion Science and Technology | Volume 19 | Number 3 | May 1991 | Pages 1307-1312
Result of Large Experiment and Plasma Engineering | doi.org/10.13182/FST91-A29522
Articles are hosted by Taylor and Francis Online.
Reference operating scenarios for the physics phase of the International Thermonuclear Experimental Reactor (ITER) rely on low temperature, high density operation for good divertor performance. Operating points in this region are usually thermally unstable, and active burn control is required in order to maintain the selected operating point. We present transport simulations of ITER burn control scenarios with modulated neutral beam heating, using the 1-1/2D transport code WHIST. Our results indicate that control is possible, except at high densities (≥ 1.75 × 1020 m−3) where off-axis heating due to the poor beam penetration makes control problematic, especially for negative perturbations.