In order to investigate the difference in defect accumulation between face-centered cubic Cu and body-centered cubic Fe, tensile specimens were neutron irradiated at about 70C to fluences ranging from 4.5 x 1020 to 4.7 x 1024/m2 (E > 1MeV); corresponding to displacement dose levels ranging from some 0.0001 to 0.8dpa. Irradiated specimens were characterized by using positron annihilation spectroscopy, transmission electron microscopy and electrical conductivity measurements.

Dose Dependence of Defect Accumulation in Neutron Irradiated Copper and Iron. M.Eldrup, B.N.Singh, S.J.Zinkle, T.S.Byun, K.Farrell: Journal of Nuclear Materials, 2002, 307-311[2], 912-7