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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.
R. Indira, T. M. John
Nuclear Science and Engineering | Volume 94 | Number 4 | December 1986 | Pages 323-336
Technical Paper | doi.org/10.13182/NSE86-A18344
Articles are hosted by Taylor and Francis Online.
An analytic approach to calculate variance reduction under analog and biased Monte Carlo simulation of deep-penetration problems is presented. Within the framework of this formulation, the variance reduction characteristics of exponential biasing and a recently proposed scheme that couples exponential biasing to scattering angle biasing are studied. The advantages and disadvantages of the coupled scheme over exponential biasing on deep-penetration problems with varying scattering probability and anisotropy are clearly illustrated.