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Division Spotlight
Education, Training & Workforce Development
The Education, Training & Workforce Development Division provides communication among the academic, industrial, and governmental communities through the exchange of views and information on matters related to education, training and workforce development in nuclear and radiological science, engineering, and technology. Industry leaders, education and training professionals, and interested students work together through Society-sponsored meetings and publications, to enrich their professional development, to educate the general public, and to advance nuclear and radiological science and engineering.
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.
M. Michelini
Nuclear Science and Engineering | Volume 47 | Number 1 | January 1972 | Pages 116-126
Technical paper | doi.org/10.13182/NSE72-A28424
Articles are hosted by Taylor and Francis Online.
In the study of the possibilities of improving the accuracy of diffusion calculations, a point-by-point formulation has been established of the diffusion coefficient DK(x,y) most appropriate to heterogeneous systems comprised of low absorbing media, that is a formulation which contains all the information obtainable from such a system. Since the actual size of each medium is taken into account, this formulation can predict the proper diffusion coefficients even within cavities. In this work three coefficients, Dx, Dy, and Dz, of anisotropic diffusion are derived for any rectangular elementary region imbedded in a generalized X, Y geometry. They enable us to perform more accurate diffusion calculations in all cases where classical diffusion can be used. In addition, anisotropic diffusion allows the study of nonhomogenized cavities. Finally, numerical calculations confirm that anisotropic diffusion is very suitable in many pròblems.