TMI-2 isotopic inventory calculations

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Abstract
Point isotopic depletion methods are used to develop spatially dependent fission product and heavy metal inventories for the TMI-2 core. Burnup data from 1239 fuel nodes (177 elements, 7 axial nodes per element) are utilized to preserve the core axial and radial power distributions. A full-core inventory is calculated utilizing 12 fuel groups (four burnup ranges for each of three initial enrichments). Calculated isotopic ratios are also presented as a function of burnup for selected nuclides. Specific applications of the isotopic ratio data include correlation of fuel debris samples with core location and estimates of fission product release fractions. 24 figs., 25 tabs.

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