Home / Store / Journals / Electronic Articles / Nuclear Science and Engineering / Volume 27 / Number 3 / Pages 533-541
W. N. McElroy, S. Berg, G. Gigas
Nuclear Science and Engineering / Volume 27 / Number 3 / Pages 533-541
Format:electronic copy (download)
An iterative unfolding method has been applied to several types of neutron environment to obtain neutron-flux spectra. The mathematical procedure involves selection of an initial spectral approximation and its subsequent perturbation to obtain a best-fit simultaneous solution for a system of ten or more activation integral equations. The present analytical studies support earlier results that integral neutron flux may be obtained from foil data with accuracies to within ± 10 to 30% at any point over the energy range from 4 × 10−7 to 18 MeV, if the activation cross-section data and measured activation rates are accurate to ± 10%.
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