Sensitivity- and Uncertainty-Based Criticality Safety Validation Techniques

B. L. Broadhead; B. T. Rearden; C. M. Hopper; J. J. Wagschal; C. V. Parks

doi:10.13182/NSE03-2

Sensitivity- and Uncertainty-Based Criticality Safety Validation Techniques

B. L. Broadhead^*, B. T. Rearden, C. M. Hopper, J. J. Wagschal, C. V. Parks

^*Corresponding author for this work

Racah Institute of Physics

Research output: Contribution to journal › Article › peer-review

191 Scopus citations

Abstract

The theoretical basis for the application of sensitivity and uncertainty (S/U) analysis methods to the validation of benchmark data sets for use in criticality safety applications was developed. Sensitivity analysis produce energy-dependent sensitivity coefficients that give the relative change in the system multiplication factor k_eff value as a function of relative changes in the cross-section data by isotope, reaction and energy. Integral indices that utilize the sensitivity information to quantify similarities between pairs of systems, typically a benchmark experiment and design system, were developed. Uncertainty analysis provide an estimate of the uncertainties in the calculated values of the system k_eff.

Original language	English
Pages (from-to)	340-366
Number of pages	27
Journal	Nuclear Science and Engineering
Volume	146
Issue number	3
DOIs	https://doi.org/10.13182/NSE03-2
State	Published - Mar 2004

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Sensitivity- and Uncertainty-Based Criticality Safety Validation Techniques

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