ANNALS OF NUCLEAR ENERGY, cilt.38, sa.5, ss.964-968, 2011 (SCI-Expanded)
Using pre-equilibrium reaction mechanisms, the neutron-emission spectra produced by (n, xn) reactions for some target (A = 16 similar to 238) nuclei have been calculated for incident neutron energy in the range of 15-26 MeV. From light nuclei to heavy nuclei, the multiple pre-equilibrium mean free path constants from internal transition have been investigated. The obtained results are discussed and compared with the available experimental data. (C) 2011 Published by Elsevier Ltd.