Defect production efficiency in metals under neutron irradiation

The available data for Frenkel pair resistivity and the experimental data for damage resistivity rate in metals were compiled and analyzed. Based on the data collected the evaluated values of Frenkel pair resistivity for metals have been obtained along with the systematics of the resistivity values. The nuclear data libraries ENDF/B-VI (Release 8), JENDL-3.3, JEFF-3.0, BROND-2.2 and CENDL-2.1 were used for the averaged damage energy cross-section calculation. The defect production efficiency has been calculated with the help of the binary collision approximation model. The values obtained were compared with the result of the molecular dynamics simulation. The energy dependent efficiencies obtained by the method of the molecular dynamics were used for the calculation of the average efficiency values for neutron spectra from various nuclear power facilities including the thermal reactor, the fast breeder reactor and the fusion facility. (C) 2004 Published by Elsevier B.V.