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Mathematics & Computation
Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Latest News
DOE extends Centrus’s HALEU production contract by one year
Centrus Energy has announced that it has secured a contract extension from the Department of Energy to continue—for one year—its ongoing high-assay low-enriched uranium (HALEU) production at the American Centrifuge Plant in Piketon, Ohio, at an annual rate of 900 kilograms of HALEU UF6. According to Centrus, the extension is valued at about $110 million through June 30, 2026.
D. C. Larson, G. L. Morgan
Nuclear Science and Engineering | Volume 75 | Number 2 | August 1980 | Pages 151-158
Technical Paper | doi.org/10.13182/NSE80-A21304
Articles are hosted by Taylor and Francis Online.
Differential cross sections for neutron-induced gamma-ray production from sodium have been measured for incident-neutron energies between 0.2 and 20.0 MeV. Gamma rays with energies 0.35 ≤ Eγ ≤ 10.6 MeV were detected with a sodium iodide spectrometer at 125 deg. The data presented are the double-differential cross section, d2σ/dΩdE, for coarse intervals in incident-neutron energy. The measured results are compared with existing data, with calculations based on multistep Hauser-Feshbach theory, and with a benchmark gamma-ray production measurement performed at the Oak Ridge Tower Shielding Facility (TSF). Average agreement between our measured results and model calculations is within 15%. The cross sections measured at the TSF are typically 30% larger than our results, except for gamma-ray energies between 1.1 and 1.5 MeV where the TSF benchmark predicts a yield 20 times greater than we observe. Results of the present measurement have been incorporated for the gamma-ray production in the Evaluated Nuclear Data File.