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Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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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. G. Doran
Nuclear Science and Engineering | Volume 52 | Number 3 | November 1973 | Pages 398-402
Technical Note | doi.org/10.13182/NSE73-A19486
Articles are hosted by Taylor and Francis Online.
The effects of some recent developments on displacement cross sections published by the author for iron, chromium, nickel, 18/10 stainless steel, and tantalum are discussed. It is argued that, except for tantalum, the cross sections are essentially consistent with ENDF/B-III, and, furthermore, can be made consistent with an International Atomic Energy Agency recommended secondary displacement model by multiplying by 0.66. A re determination of the tantalum displacement cross section has been made using ENDF/B-III data and an effective displacement energy of 90 eV deduced from a recent measurement of the displacement threshold surface for tantalum. Estimates are made of the contributions to displacement cross sections of several previously ignored nonelastic processes. Finally, the usefulness of the isotropic elastic-scattering approximation at high neutron energies is discussed.