Simulation of the Evolution of Defects in a Lattice by the Monte-Carlo Method.

The simulation of the point defect behavior in a lattice by the Monte-Carlo method can be made very fast by using probability laws as a function of time for each possible event (creation, annihilation or transformation of a defect), thus avoiding the treatment of each elementary jump. The simulation techniques are described, and some examples of application are given: annealing of a cascade, quenchings, isochronal anneals, and interstitial clustering during electron irradiation. Comparisons with other calculation methods and with experiments show the validity and efficiency of these techniques.