Effect of Geometry on Resonance Absorption of Neutrons by Uranium
- 1 March 1955
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 26 (3) , 271-275
- https://doi.org/10.1063/1.1721976
Abstract
The total resonance absorption of neutrons by spheres of uranium and uranium oxide imbedded in graphite and bombarded with essentially a dE/E spectrum is found to be given by 1/α=c[1+(κ/ρR)] where α is the advantage factor, that is, the ratio of absorption of uranium when distributed uniformly throughout graphite to the absorption when it is lumped in a sphere. R is the radius of the sphere and ρ is its density. c and ρ were measured in various parts of a large graphite block exposed to cyclotron neutrons from the reaction Li (p,n). Values of c and ρ, respectively, are 0.051 and 5.1 g/cm2 for U3O8. In a newer notation, A = 10.9 barns and μ = 1.95 g/cm2.This publication has 3 references indexed in Scilit:
- Resonance Capture of Neutrons by UraniumPhysical Review B, 1950
- ber die Umwandlungsreihen des Urans, die durch Neutronenbestrahlung erzeugt werdenThe European Physical Journal A, 1937
- Capture of Slow NeutronsPhysical Review B, 1936