Collision Probabilities and Resonance Integrals for Lattices
- 1 February 1960
- journal article
- research article
- Published by Taylor & Francis in Nuclear Science and Engineering
- Vol. 7 (2) , 162-171
- https://doi.org/10.13182/NSE60-A29086
Abstract
A formula for the escape probabilities of neutrons from the fuel lumps to the moderator and vice versa in a lattice is derived and the validity of simple approximations discussed. These formulas are applied to solve the coupled integral equations for the collision densities in a lattice. First-order corrections to the resonance integral are obtained both for the Narrow Resonance and the Narrow Resonance Infinite Absorber approximations. Numerical results are given for water lattices containing hexagonal arrays of U238 rods, of 0.25 and 0.60 in. diameter, at different water-to-metal volume ratios.Keywords
This publication has 2 references indexed in Scilit:
- Some Refinements in the Calculation of Resonance IntegralsNuclear Science and Engineering, 1958
- The Effective Resonance Integrals of U-238 and Th-232Nuclear Science and Engineering, 1956