ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
Meeting Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
Standards Program
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.
J. K. Dickens
Nuclear Science and Engineering | Volume 50 | Number 2 | February 1973 | Pages 98-107
Technical Paper | doi.org/10.13182/NSE73-A23233
Articles are hosted by Taylor and Francis Online.
Interactions of neutrons with sodium have been studied by measuring gamma-ray-production cross sections. Spectra were obtained for incident mean neutron energies En = 4.85, 5.4, 5.9, 6.45, 7.0, and 7.5 MeV. Data were obtained at angles of 125 and 55 deg using Ge(Li) detectors. Time-of-flight was used to discriminate against pulses due to neutrons and background radiation.Absolute cross sections for production of gamma rays were obtained for the incident neutron energies quoted above. The data have been compared with previous inelastic neutron scattering results and evaluated cross sections, with good agreement. The spectra were studied for gamma rays which could be associated with deexcitation of nuclear levels having unknown decay modes. Gamma rays were found having energies appropriate for decay of levels at excitation energies Ex = 5762, 5934, 5967, 6115, 6576, and 6866 keV.