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Fission Product Benchmarking for Burnup Credit Applications

Author(s)
Wells, A. H.
Publication Date

Abstract

Progress toward developing a technical basis for a cost-effective burnup credit methodology for
spent nuclear fuel with initial U-235 enrichment up to 5% is presented. Present regulatory
practices provide as much burnup credit flexibility as can be currently expected. Further progress
is achievable by incorporating the negative reactivity effects of a subset of neutron-absorbing
fission product isotopes. Progress also depends on optimizing the procedure for establishing the
burnup characteristics of spent fuel to be loaded in “burnup-credit-approved” storage and
transportation systems.

Additional Information
EPRI 1002879
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