Actions for Criticality potential of commercial PWR SNF in a degraded waste package [electronic resource].

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Criticality potential of commercial PWR SNF in a degraded waste package [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy. Office of Civilian Radioactive Waste Management, 1997.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
8 pages : digital, PDF file
Additional Creators
United States. Department of Energy. Office of Civilian Radioactive Waste Management and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
This paper describes a parametric evaluation of the fraction of the pressurized water reactor (PWR) assembly waste stream with the potential for the criticality threshold in a flooded 21 PWR waste package (WP). The parameters considered were: (1) fuel isotopics (i.e., burnup, enrichment, and age), (2) time of WP breach, (3) the degree of basket degradation, (4) the distribution of the resulting corrosion products, and (5) the infiltration rate. For this evaluation, a k{sub eff} of 0.93 was chosen as the threshold for criticality based on the 5% margin of safety required by 10CFR60.131(h), plus an additional 2% to allow for the expected bias and uncertainty in the method of calculation. This and similar evaluations will be used to support probabilistic analyses of WP criticality and the development of WP loading curves.
Report Numbers
E 1.99:doe/rw--98005877
doe/rw--98005877
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Note
Published through SciTech Connect.
12/01/1997.
"doe/rw--98005877"
"DE98005877"
Gottlieb, P.; Massari, J.R.
Framatome Cogema Fuels, Las Vegas, NV (United States)
View MARC record | catkey: 14110432