Intermediate-State Structure in the 12C(n,n3α) and 16O(n,n4α) Breakup Induced by 22.5 and 25.4 MeV Neutrons
The n3α and n4α final states induced by the interaction of 22.5 and 25.4 MeV neutrons with 12C and 16O are studied in a kinematically complete measurement, using nuclear emulsions as a target and a 4π detector. By determining the excitation energies of the correlated 2α, 3α and 4α particles in each event, the intermediate-state excitation-energy spectra of the reactions 12C(n,n)12C(α)8Be(2α) and 16O(n,n)16O(α)12C(α)8Be(2α) are deduced. Partial cross sections for n+12C inelastic scattering to various reaction bins of the 12C excitation-energy spectrum are tabulated.
(Reaction: 12C(n,n3∝) 16O(n,n4∝); En=22.5 and 25.4 MeV. Deduced partial cross sections for various reaction chains in the 12C(n,n)12C(∝)8Be(2∝) breakup Determined intermediate-state structure of the reaction 16O(n,n)16O(∝)12C(∝)8Be(2∝) Monte Carlo analysis)
KeywordsExcitation Energy Inelastic Scattering Neutron Inelastic Scattering Partial Cross Section Nuclear Emulsion
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