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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.
W. L. Filippone
Nuclear Science and Engineering | Volume 99 | Number 3 | July 1988 | Pages 232-250
Technical Paper | doi.org/10.13182/NSE88-A28995
Articles are hosted by Taylor and Francis Online.
SMART (simulation of many accumulative Rutherford trajectories) scattering theory is based on a scattering matrix designed to eliminate angular and possibly energy discretization errors. This is done without resorting to negative matrix elements. In effect, the true scattering law is replaced by one with fewer collisions but larger deflections per collision. The two scattering laws are equivalent, at least in space-independent calculations. To the extent that this equivalence holds true for space-dependent problems, the major numerical obstacle to electron transport modeling is removed. SMART scattering theory has been used in one-dimensional streaming ray and two-dimensional SN codes in lieu of Fokker-Planck or extended transport correction techniques, and in a one-dimensional discrete angle Monte Carlo code in place of the condensed history approach. Excellent results have been obtained.