Kul'ment'ev O. Identification of the solids structure with nuclear methods of analysis and computer simulation

The thesis is concerned with development of integrated approach to the study of solids structure and mutual interconnections of different defects. The approach is based on the sharing of experi-mental and theoretical methods along with computer simulations. Experimental approach relies on nuclear methods of analysis since variation of incident radiation type and beam parameters allow achieve dominance in the interaction of the probe particles with particular type of defect. General approach to the solution of inverse problems in such methods is described, and for some of them the framework for choice of generalized regularization parameter is proposed. The apparatus of theoretical physics was used to refine the model of signal formation in ion beam based methods, namely, adequate treatment of multiply scattered particles. The energy distribution of such parti-cles and corresponding scattering cross-sections were considered in the rigorous statement. Inter-connection of different defects was studied in the framework of hierarchical multiscale modeling methodology. The method of both detection of compact atomic defect formation and calculation of its arbitrary integral characteristics was proposed. For the first time the exact analytical expres-sion for geometric moments and vector form of defects like pores and self-maintained atomic clus-ters was obtained.