Neutron-coincidence determination of plutonium taking into account multiplication and the actual multiplicity of leakage neutrons

The model developed for describing the response of neutron-coincidence setups taking into account the real leakage-neutron multiplicity distribution (RMD approximation) is effective for analyzing samples of metallic plutonium with different isotopic composition, plutonium dioxide, and composites of mixed uranium — plutonium fuel in the form of powder and granules. The only inconvenience of this model, just as the BEH approximation, is that computational or experimental estimates of the multiplication effect must be obtained.