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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Latest News
No impact from Savannah River radioactive wasps
The news is abuzz with recent news stories about four radioactive wasp nests found at the Department of Energy’s Savannah River Site in South Carolina. The site has been undergoing cleanup operations since the 1990s related to the production of plutonium and tritium for defense purposes during the Cold War. Cleanup activities are expected to continue into the 2060s.
F. Coulomb, C. Fedon-Magnaud
Nuclear Science and Engineering | Volume 100 | Number 3 | November 1988 | Pages 218-225
Technical Paper | doi.org/10.13182/NSE88-A29034
Articles are hosted by Taylor and Francis Online.
Among the classical methods used for solving the neutron diffusion equation, the Lagrange finite element method can be efficiently implemented to provide a fast numerical treatment. Mixed elements are used because they allow simultaneous approximations for the flux and its gradient of the same order. Although the linear systems produced are not positive definite, a solution can be achieved after eliminating some of the unknowns. Numerical results include core calculations of two types of reactors.