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November 9–12, 2025
Washington, DC|Washington Hilton
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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.
Bastiaan J. Braams, Clifford E. Singer
Fusion Science and Technology | Volume 9 | Number 2 | March 1986 | Pages 320-327
Technical Paper | Plasma Engineering | doi.org/10.13182/FST86-A24718
Articles are hosted by Taylor and Francis Online.
Analytic and two-dimensional computational solutions for the plasma parameters near a toroidally symmetric limiter are illustrated for the projected parameters of a Tokamak Fusion Core Experiment (TFCX). The temperature near the limiter plate is below 20 eV, except when the density 10 cm inside the limiter contact is 8 × 1013 cm−3 or less and the thermal diffusivity in the edge region is 2 × 104 cm2/s or less. Extrapolation of recent experimental data suggests that neither of these conditions is likely to be met near ignition in TFCX, so a low plasma temperature near the limiter should be considered a likely possibility.