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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.
J. S. Hendricks, L. L. Carter
Nuclear Science and Engineering | Volume 89 | Number 2 | February 1985 | Pages 118-130
Technical Paper | doi.org/10.13182/NSE85-A18186
Articles are hosted by Taylor and Francis Online.
A synergistic method is described for the angle biasing of anisotropic scattering kernels in Monte Carlo calculations. The method generalizes Dwivedi's suggestion of using the exponential transform to cancel the undesirable fluctuations of angle biasing. Only photons are examined because the biasing of the Klein-Nishina scattering kernel can be treated analytically in contrast to more general neutron scattering kernels, which would require a numerical treatment. Three-dimensional continuous-energy results indicate that angle biasing in conjunction with the exponential transform is better than either by itself and greatly enhances Monte Carlo transport for the cases shown.