Experimental uncertainty quantification using templates of expected measurement uncertainties for fast neutron-induced total, capture, and scattering cross sections

Open Access

Fig. 10.

Derived $^{239} P u$ $Mathematical equation: $ \mathrm {^{239}}Pu $$ $(n, γ)$ $Mathematical equation: $ \mathrm (n, \gamma ) $$ cross section for the Mosby2018 data as shown with uncertainties reported on EXFOR (purple) and after detailed UQ using templates of expected experimental uncertainties (orange). The ENDF/B-VIII.0 evaluation (blue) exhibits resonance-driven structure. These rapid variations amplify the sensitivity to experimental inputs and produce localized spikes in the propagated cross section uncertainty.

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