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Mathematics & Computation
Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
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International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
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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
Argonne’s METL gears up to test more sodium fast reactor components
Argonne National Laboratory has successfully swapped out an aging cold trap in the sodium test loop called METL (Mechanisms Engineering Test Loop), the Department of Energy announced April 23. The upgrade is the first of its kind in the United States in more than 30 years, according to the DOE, and will help test components and operations for the sodium-cooled fast reactors being developed now.
W. K. Foell, T. J. Connolly
Nuclear Science and Engineering | Volume 26 | Number 3 | November 1966 | Pages 399-417
Technical Paper | doi.org/10.13182/NSE66-A17363
Articles are hosted by Taylor and Francis Online.
Measurements of resonance absorption of neutrons were performed on single-absorber systems containing 238U and 232Th individually, and in binary systems containing mixtures of these two absorbers. The single-absorber measurements were made over a wide range of absorber concentrations and served as a check on the adequacy of resonance absorber calculations and/or resonance parameter data. The binary systems provided a situation in which the spacing of resonances is closer than in a single absorber, thus making questionable the usual assumption of separability of resonances. The measurements were performed by means of static reactivity techniques in the Advanced Reactivity Measurement Facility (ARMF-II) at the National Reactor Testing Station in Idaho. The calculated and measured values for the uranium dioxide systems are in good agreement over the wide range of absorber concentrations. The experimental results for the thorium dioxide samples are consistent with work by other experimenters but are in quantitative disagreement with resonance integrals calculated from a recent compilation of resonance parameters. The measured resonance integrals of the binary mixtures were smaller than the values predicted from the measurements on the single-absorber systems, indicating an interference effect of approximately 3% in the samples of highest absorber concentration. Calculations performed with a multiresonance version of Nordheim's ZUT code underestimated this interference effect between absorbers.
