An annealing study was made of samples which had been irradiated with reactor neutrons. It was found that the effect of annealing in a reactor was more intense than that of thermal annealing, provided that the -flux was lower during primary irradiation than during secondary irradiation. A study was also made of the electron annealing of damaged crystals. The radiographically measured volume of the elementary cell was used to characterize the defect content. It was concluded that the effect of -radiation, which was always associated with reactor neutron radiation, was quite important with regard to the formation of defects.

V.A.Nikolaenko, V.G.Gordeyev, V.I.Karpukhin: Radiation Effects and Defects in Solids, 1996, 139[3], 173-82