Cross Sections of Various Materials in the Godiva and Jezebel Critical Assemblies

Neutron activation (n, γ) cross sections of various isotopes have been determined in the Los Alamos Godiva and Jezebel assemblies by a comparison activation method. Where these values represent total capture, they may be used in conjunction with effective absorption cross sections (σ_a) from reactivity contribution measurements to obtain the effect of energy degradation of the neutrons by inelastic scattering.