A numerical methodology for obtaining resonance intermediate factors in the multigroup formalism

This work shows a new methodology for the determination of the intermediate resonance parameters κ and μ appropriate to each nuclide and in the multigroup formalism. The procedure uses the NJOY code system (subroutine GENFLX of GROUPR module). The methodology is compatible with the methods commonly used for multigroup cross section libraries. It will be shown the intermediate resonance parameters (κ and μ) as function of dilution and temperature for the principal groups of the epithermal library of HAMMER-TECHNION. The results are consistent and show satisfactory progress. (author). 18 refs., 3 figs., 6 tabs