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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.
W. D. Booth, G. W. Branson, R. Carrera, G. Hallock, S. S. Medley, M. E. Oakes, C. A. Ordonez,† T. A. Parish,‡ R. L. Sledge, W. A. Walls, W. F. Weldon, M. D. Werst
Fusion Science and Technology | Volume 19 | Number 3 | May 1991 | Pages 1143-1148
Ignition Device | doi.org/10.13182/FST91-A29497
Articles are hosted by Taylor and Francis Online.
The basic fusion ignition experiment IGNITEX can achieve plasma ignition through the use of high toroidal fields (20 T) and ohmic heating. The experiment will operate in a pulsed tokamak mode with one discharge every two hours. The single-turn-coil system will be driven by homopolar generators and will be cooled by a liquid nitrogen bath. The experimental program will stretch over a three year period with the first D-T fueled discharges taking place after about 19 months of operation. Hands-on maintenance is possible both inside and outside the primary shielding due to the low activation levels of the experiment. This low activation is because of the almost complete coverage of the vacuum vessel by the thick copper magnetic coil system and the single-turn coil design which does not require the usual high activation laminate materials. IGNITEX systems are designed to provide high reliability and simplicity to extend machine availability in the fusion ignition regimes.