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Division Spotlight
Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
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.
S. K. Gupta, M. A. Prasad
Nuclear Science and Engineering | Volume 70 | Number 2 | May 1979 | Pages 192-200
Technical Paper | doi.org/10.13182/NSE79-A19652
Articles are hosted by Taylor and Francis Online.
A semi-analytical technique making use of a set of coupled integral equations has been developed for solving problems in electron transport. This method is applicable to one-dimensional finite systems. The flux and source density are expanded in Fourier series, and a set of integral equations relating the Fourier coefficients is derived. This set of coupled equations is solved by iteration. Dose distributions and transmitted energy spectra have been obtained for plane perpendicular and point isotropic sources. These compare well with earlier calculations for both low- and high-Z materials.