Inelastic scattering of fast neutrons from⁵⁶Fe

Abstract

Abstract. The inelastic scattering of fast neutrons on 56 Fe was investigated in different manners at the neutron time-of-flight facility nELBE. The scattering cross section was determined via the measurement of the γ -ray production and by means of a kinematically complete double time-of-flight method. In a further measurement the γ -ray angular distribution was determined to correct the measured cross sections for anisotropy. The resulting inelastic scattering cross section determined from the photo production cross sections is in very good agreement with evaluations and previous measurements. In contrast, the result of the double time-offlight measurement is about 10% lower than these data, giving a hint to neutron-γ -ray angular correlations in the process of inelastic neutron scattering.

Angular distribution measurement of gamma rays from inelastic neutron scattering on 56Fe at the nELBE time-of-flight facility

“…Other corrections can also be derived for a more complex detector setup such as the double time-of-flight experiment [8] at nELBE.…”