Multivariate event selection for improved statistical efficiency in i-TED neutron capture measurements at CSNS Back-n Data

This dataset contains the numerical source data supporting the figures and tables in the manuscript “Multivariate event selection for improved statistical efficiency in i-TED neutron capture measurements at CSNS Back-n”.The data include simulated geometric-selection distributions, measured time-of-flight spectra, event-retention comparisons, selected Au neutron-energy spectra, proton-normalized background-subtracted weighted responses, reconstructed 197Au(n,γ) cross sections and their standard uncertainties, the ENDF/B-VIII.0 reference curve, Pb background back-projection maps, and 209Bi weak-signal simulation spectra and selection-performance curves.

The values reported in Tables 1–3 are also included.The package contains 20 CSV data files, accompanied by a file index and a column dictionary specifying variable definitions and units. Original plotting coordinates, energy-bin boundaries and available uncertainties are retained to support inspection and reproduction of the reported figures.