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November 9–12, 2025
Washington, DC|Washington Hilton
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Fusion Science and Technology
Latest News
Russia withdraws from 25-year-old weapons-grade plutonium agreement
Russia’s lower house of Parliament, the State Duma, approved a measure to withdraw from a 25-year-old agreement with the United States to cut back on the leftover plutonium from Cold War–era nuclear weapons.
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.