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2025 ANS Winter Conference & Expo
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.
A. Majid, M. A. Abdou
Fusion Science and Technology | Volume 15 | Number 2 | March 1989 | Pages 1192-1195
Blanket Liquid Metal MHD | doi.org/10.13182/FST89-A39855
Articles are hosted by Taylor and Francis Online.
Analysis has been performed to evaluate the possibility of using liquid lithium as a coolant for the limiter. A global analysis was carried out to determine limiter's shape and configuration, and then detailed MHD, heat transfer, and structural analysis, were performed to determine limiting coolant velocities, operating pressures, Nusselt number, and allowable heat fluxes. For one of the most suitable choices of materials i.e. vanadium structure, lithium coolant, and Be coating (10 mm), the limiting heat flux has been found to be 2.5 MW/m2. For High-Z coating of tungsten the limiting heat flux has been found to be 5.7 MW/m2. In both cases the operating pressure was maintained at 10 MPa.