GEOLOGIC DISPOSAL OF HEU ALUMINUM-BASED DOE FUELS Page: 4 of 6
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oxide produced from the degradation of the carbon steel basket structure and DOE-SNF canister
Without the presence of a very insoluble neutron absorber in the canisters of the HEU Al-based
DOE-SNF, the long-term action of infiltrating water can lead to a small, but significant,
probability of criticality. The MIT fuel canister design with 1.25 kg of Gd (as GdPO4)
distributed in or on carbon steel absorber plates throughout the carbon steel basket will reduce
the probability of criticality to virtually zero during the first several hundred thousand years
This work was supported by the Department of Energy through the Westinghouse Savannah
River Company, Savannah River Site (Contract Number DE-ACO1-91RW00134).
1. Disposal Criticality Analysis for Aluminum-Based Fuel in a Codisposal Waste Package -
ORR and MIT SNF - Phase II, DI Number: BBA000000-01717-0200-00060 REV 00,
CRWMS M&O, December 1997.
2. Wolery, Thomas J., EQ3/6, A Software Package for Geochemical Modeling of Aqueous
Systems: Package Overview and Installation Guide (Version 7.0), UCRL-MA-110662
PT I, LLNL, 1992.
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J. WESLEY DAVIS, DR. PETER GOTTLIEB. GEOLOGIC DISPOSAL OF HEU ALUMINUM-BASED DOE FUELS, report, March 22, 1998; Las Vegas, Nevada. (digital.library.unt.edu/ark:/67531/metadc716027/m1/4/: accessed February 23, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.