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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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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.
G. D. Hickman, J. A. Bistline, L. A. MacNaughton
Nuclear Science and Engineering | Volume 8 | Number 5 | November 1960 | Pages 381-392
Technical Paper | doi.org/10.13182/NSE60-A25818
Articles are hosted by Taylor and Francis Online.
A series of fifteen experiments were carried out on an 8 × 30 × 32 in. core in the Pressurized Critical Assembly at KAPL. In twelve of these experiments, 0.030-in. boron stainless steel septa bisected the 8-in. dimension. These septa contained various weight per cent B10. In the remaining three experiments, there were no boron-stainless steel septa in the core. The eigenvalues and neutron density distributions were compared with values which were calculated using Deutsch cross sections and “Thin Region Theory.” The eigenvalues which were calculated were within one per cent of the experimental values, with a spread of approximately one per cent. For all the cores, the calculated eigenvalues were lower than the experimental values. Analyses of the neutron density distributions showed the calculated results in fairly good agreement with the experimental results. In all cases, this agreement was as good for the cores which contained the boron septa as for the ones which did not. It therefore appears that the boron has been well represented by “Thin Region Theory,” and that the main discrepancies between calculated and experimental values are due to the inadequacies of adapting the Deutsch scheme to these cores.