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Fusion Energy
This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
Meeting Spotlight
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
NRC cuts fees by 50 percent for advanced reactor applicants
The Nuclear Regulatory Commission has announced it has amended regulations for the licensing, inspection, special projects, and annual fees it will charge applicants and licensees for fiscal year 2025.
M. W. Dyos, G. C. Pomraning
Nuclear Science and Engineering | Volume 25 | Number 1 | May 1966 | Pages 8-11
Technical Paper | doi.org/10.13182/NSE66-A17495
Articles are hosted by Taylor and Francis Online.
A method is given for the calculation of effective neutron cross sections for materials with grain structure. The method is particularly suited for the calculation of effective cross sections at thermal energies where the ratio of scattering to total cross section for absorbers is small. The grain shielding factors have been calculated through the 1.056-eV resonance of 240Pu for the case of 200-µ-diam plutonium oxide grains, containing 17%240Pu, homogeneously dispersed in BeO. It is shown that provided the centers of the grains are not less than 800 µ apart the method given in this paper is applicable and gives excellent agreement with the results obtained from a P1 , S8 neutron transport theory calculation.
