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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.
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Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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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BWXT will scout potential TRISO fuel production sites in Wyoming
BWX Technologies Inc. announced today that its Advanced Technologies subsidiary has signed a cooperation agreement with the state of Wyoming to evaluate locations and requirements for siting a potential new TRISO nuclear fuel fabrication facility in the state.
S. R. Bierman, L. E. Hansen, R. C. Lloyd, E. D. Clayton
Nuclear Technology | Volume 6 | Number 1 | January 1969 | Pages 23-26
Technical Papers and Note | doi.org/10.13182/NT69-A28264
Articles are hosted by Taylor and Francis Online.
The results and analyses are presented from the latest series of experiments in a continuing program for determining the critical parameters of plutonium mixtures having concentrations that are typical of wet powders, precipitates, slurries, and polymers. The initial series of measurements in this program were made on 15 H/Pu fuel having 240Pu isotopic concentrations of 2.2 and 8.08 wt%. The latest experiments were conducted with fuel having a 240Pu isotopic concentration of 11.46 wt% and a H/Pu atom ratio of 5. Generally, these results indicate that the published values for the critical sizes and masses of plutonium should be increased for the highly concentrated systems. Additional data are needed, however, to better establish the criticality curves in this region. The 11.46 wt% 240Pu isotopic concentration caused an increase of ∼30% in the spherical critical mass of a bare 239Pu-water system at 5 H/Pu. In the reflected system the increase was ∼43%.