The book focuses on the effects of shock waves on vacancies and their clusters in fcc crystals. It is shown that high-speed cooperative atomic displacements represent a powerful tool for the purposeful modification of defect structures in crystalline bodies. The results are important for radiation material science, nano-engineering, the study of shock wave effects and the ultrasonic treatment of materials. Keywords: Computer Modelling of Nanopores, Molecular Dynamics, Fcc Metals, Defect Structures in Crystals, Radiation Material Science, Nano-Engineering of Materials, Ultrasonic Treatment of Materials, Radiation Induced Defects, Vacancy Clusters, Shock Wave Effects, Radiation-Resistant Materials, Thermomechanical Processing, Energy Transfer Mechanism, Nanopore Nucleation, Nanopore Based Filters, Nanopore Based Detectors, Cooling Elements in Nano-Electronics.