MODELING THE EARLY STAGE OF THE PHENOMENON OF RADIATION GROWTH OF ZIRCONIUM

The Cluster Dynamics method was used to describe the early stage of "irradiation growth" of a zirconium single crystal, allowing for the description of its microstructure evolution with the irradiation dose. The results of numerical calculations of the dependence of point defects concentration on the dose in the absence of thermal emission, the dependence of the growth deformation along the main axes of a single crystal a , c and the dependence of interstitial and vacancy loop concentrations of on their radii for doses up to 1 dpa and various diffusion coefficients of point defects are given.