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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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.
Jerzy Mackiewicz
Nuclear Science and Engineering | Volume 99 | Number 2 | June 1988 | Pages 99-108
Technical Paper | doi.org/10.13182/NSE88-A23550
Articles are hosted by Taylor and Francis Online.
A new nodal approach for global reactor core calculations is described, in which local weighted residual procedure equations are consistently embedded into a classical nodal scheme without the necessity of a transverse leakage fitting approximation. The equations derived are formulated for arbitrary node geometry and a wide class of base functions. Simplicity and efficiency of the final relations are assured for regularly shaped nodes by means of symmetry considerations. Application to hexagonal geometry of nodes is discussed. Numerical results for few-group steady-state problems in hexagonal geometry prove highly accurate, comparable to analytic codes, and better with respect to computational efficiency.