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2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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Leading the charge: INL’s role in advancing HALEU production
Idaho National Laboratory is playing a key role in helping the U.S. Department of Energy meet near-term needs by recovering HALEU from federal inventories, providing critical support to help lay the foundation for a future commercial HALEU supply chain. INL also supports coordination of broader DOE efforts, from material recovery at the Savannah River Site in South Carolina to commercial enrichment initiatives.
M. W. Dyos, G. C. Pomraning
Nuclear Science and Engineering | Volume 25 | Number 1 | May 1966 | Pages 8-11
Technical Paper | doi.org/10.13182/NSE66-A17495
Articles are hosted by Taylor and Francis Online.
A method is given for the calculation of effective neutron cross sections for materials with grain structure. The method is particularly suited for the calculation of effective cross sections at thermal energies where the ratio of scattering to total cross section for absorbers is small. The grain shielding factors have been calculated through the 1.056-eV resonance of 240Pu for the case of 200-µ-diam plutonium oxide grains, containing 17%240Pu, homogeneously dispersed in BeO. It is shown that provided the centers of the grains are not less than 800 µ apart the method given in this paper is applicable and gives excellent agreement with the results obtained from a P1 , S8 neutron transport theory calculation.
