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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
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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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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.
K. Hilpert, R. Odoj, H. W. Nürnberg
Nuclear Technology | Volume 61 | Number 1 | April 1983 | Pages 71-77
Technical Paper | Nuclear Fuel | doi.org/10.13182/NT83-A33144
Articles are hosted by Taylor and Francis Online.
The potential of Al2O3/SiO2 additives for the retention of cesium in coated particles of high-temperature gas-cooled reactors is elucidated by fundamental studies of the system Cs2O−Al2O3−SiO2. Samples with nine different compositions were prepared by applying hydrothermal crystallization. Their phase composition was studied by x-ray diffraction extending the knowledge about the phase diagram. The vaporization of the samples was investigated with high-temperature mass spectrometry. From the partial pressures obtained for cesium, the efficiency of the various cesium aluminosilicate phases for the retention of cesium can be determined. The cesium pressures together with the phases observed in the samples provide the basis for cesium retention as a function of the optimum composition and quantity of the Al2O3/SiO2 additives. By comparing the cesium partial pressures over the various cesium aluminosilicates with those that are necessary for the formation of cesium lamellar compounds in reactor-grade graphite and pyrolytic graphite, it is found that lamellar compounds cannot be formed in coated particles if cesium aluminosilicates are formed.