Nuclear Science and Engineering / Volume 22 / Number 2 / June 1965 / Pages 244-247
Technical Paper / dx.doi.org/10.13182/NSE65-A20242
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It is possible to derive a correction to the mean chord length used in the Wigner Rational Approximation which 1) gives a better estimate of the escape probability 2) preserves the equivalence relationship for each resonance 3) preserves the value of the resonance integral. Various methods of achieving objectives 1 and 2 have been discussed previously. It is shown in this paper that employing criterion 3 dictates an averaging procedure similar to earlier ones but involving different weighting points. A table of weighting points is given.