Abstrakt
Intensity distributions of cascade gamma-ray transitions following the capture of thermal neutrons by Cd-113 have been measured at the Los Alamos Neutron Science Center for various gamma-ray multiplicities. The experiment was carried out at the highly segmented 4 pi gamma-ray calorimeter-Detector for Advanced Neutron Capture Experiments ( DANCE).
A measured two-dimensional spectrum of counts versus gamma-ray energy versus gamma-ray multiplicity, from the strongest resonance in the Cd-113( n,gamma) reaction at 0.178 eV has been compared to predictions from the statistical model. The best representation of the gamma-ray cascades following the capture of thermal neutrons on Cd-113 is presented.
The intensity distribution of these cascades is of great importance for estimates of response to thermal neutrons of devices that use natural or enriched cadmium.