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Division Spotlight
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.
Meeting Spotlight
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
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
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.
Katherine A. Daniels, Jon F. Harrington (British Geological Survey), Mark Jensen (NWMO)
Proceedings | 16th International High-Level Radioactive Waste Management Conference (IHLRWM 2017) | Charlotte, NC, April 9-13, 2017 | Pages 826-833
The Bruce nuclear site in Canada has been proposed to host a Deep Geologic Repository (DGR) for Low and Intermediate Level Radioactive Waste (L&ILW). The repository would be constructed within a low permeability, argillaceous limestone, the Upper Ordovician age Cobourg Formation. Here, we present the results of two steady-state laboratory hydraulic conductivity tests performed to measure the intrinsic permeability of rock core samples from the Cobourg and overlying Queenston shale formations; both samples were measured under an isotropic confining pressure using a constant head approach. Pump pressures and volumes were recorded for upstream and downstream pumps, throughout testing. The resulting hydraulic inflow and outflow rates were measured for each sample under two different pressure gradients, yielding exceptionally low values of permeability (on the order of 10-22 m2 or 0.1 nD). These data provide further evidence of the applicability of existing steady-state experimental methods to obtain reliable estimates of extremely low permeabilities from rock core samples under re-established in-situ stress conditions. The exceptionally low permeability of these formations, consistent with in-situ testing and formation scale estimates obtained during the site characterisation program, along with their low porosities, renders them an effective barrier to hydraulic flow for the purpose of geological isolation.