Measurement of neutron capture and fission cross sections of 236U

Abstract

The cross sections for radiative capture and fission for 236U in the neutron energy ranges 1–2000 eV and 1–1000 eV, respectively, have been measured. The measurements were performed on a flight baseline 5.2 m of the FAKEL linear electron accelerator at the National Research Center Kurchatov Institute using a method based on measuring the distribution of the number of particles emitted by an excited nucleus with simultaneous measurement of the energy of each particle. The spectrum of the neutrons incident on a sample was measured by detecting the reaction 10B(n, α)7Li. The cross sections were normalized with respect to the resonance in 236U at 5.45 eV. The data obtained are compared with the results of other experiments and evaluated data.