Measurements of the Effective Resonance Integral in Uranium Metal and Oxide in Different Geometries

Abstract

A series of measurements of the effective resonance integral in uranium metal and oxide, UO2, has been made. Measurements were performed on simple rods, on a few tubes, empty or filled with a moderator, and on clusters of rods. Formulas for the effective resonance integral as a function of S/M and (S/M)½ are given for metal and UO2. In addition the variation of the resonance absorption of neutrons as a function of depth in metal rods has been studied. The results are given in the form of curves.