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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.
A. Natarajan, K. V. Subbaiah, D. V. Gopinath
Nuclear Science and Engineering | Volume 85 | Number 4 | December 1983 | Pages 418-422
Technical Note | doi.org/10.13182/NSE83-A18387
Articles are hosted by Taylor and Francis Online.
Significant differences have been observed between Goldstein and Wilkins (moments method) and ASFIT (anisotropic source flux iteration technique) buildup factors in the materials of high atomic number (Z) for 6- and 8-MeV gamma rays at depths greater than 10 mfp. Comparison has been made between the two, and quantitative differences are presented for tin, tungsten, lead, and uranium in the gamma-ray energy range of 3 to 10 MeV up to a depth of 20 mfp. It is believed that these large differences are a sequel to certain deficiencies in the Goldstein and Wilkins method of reconstructing the spatial distribution of the scattered flux in these cases. The closer agreement between the modified moments method values and the present results is cited.
