Modeling of cascade damage interactions by Monte-Carlo method

The effect of interactions of cascade damage on clustering and point-defect behavior in α-iron at 563 K is simulated by the Monte-Carlo (MC) method. Cascade damage near the existing cluster increases recombination of point-defects, but freely migrating defects formation is not strongly modified by the overlapping. Growth and shrinkage of vacancy clusters depends on the distance between cascades. Small interstitial clusters tend to grow by the interaction of nearby cascades. Clustering, recombination and the production of freely migrating defects are quantitatively estimated for two 10 keV cascade interactions.