Analysis of neutron time-of-flight spectra with a Bayesian unfolding methodology

We have developed an innovative methodology for obtaining the neutron energy distribution from a time-of-flight (TOF) measurement based on the iterative Bayesian unfolding method and accurate Monte Carlo simulations. This methodology has been validated through the analysis of a realistic virtual β -decay experiment, including the most relevant systematic effects in a real experiment. The proposed methodology allowed for obtaining accurate results over the energy range above the neutron detection threshold. • An innovative methodology for obtaining the neutron energy distribution from a TOF measurement has been developed. • The methodology is based on the iterative Bayesian unfolding method and accurate Monte Carlo simulations. • A realistic virtual β -decay experiment has been analyzed to validate the methodology. • The proposed methodology allows for obtaining accurate results over the energy range above the neutron detection threshold.