21–29 Jul 2022
Gather.Town
US/Pacific timezone
LLNL-WEB-834787

Bayesian network evaluation of neutron-induced reactions of Fe-56

26 Jul 2022, 11:39
12m
Delta King

Delta King

Speaker

Georg Schnabel (IAEA)

Description

We present the progress made in the evaluation of neutron-induced reactions of Fe-56 using a Bayesian network. The Bayesian network framework facilitates the incorporation of a diverse set of measurements, such as residual production cross sections and angular distributions. A nuclear physics model code in combination with Gaussian processes to take into account model imperfections is used in the fast energy range. In the energy range between about one and five MeV, we use a flexible Gaussian process construction instead of a physics model. The Bayesian network framework enables us to evaluate these two energy ranges simultaneously with a smooth transition between them and sum rule constraints between channels being respected.

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