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Information × Registration Number 0122U001483, ( 0223U000913  0224U001157  0225U002494  ) R & D request Title Investigation of anomalous diffusion processes in the interaction of high-energy particles with intense external fields and matter Head Onyshchenko Hennadii M., Кандидат фізико-математичних наук Registration Date 13-02-2022 Organization V.N. Karazin Kharkiv National University popup.description1 The aim of this work is to study the manifestations of anomalous diffusion and dynamic chaos in the interaction of high-energy particles with intense external fields and matter. The main problems to be solved are the following: - to find the diffusion indices of a beam of fast charged particles in straight and bent crystals; - to find conditions for the development of dynamic chaos in the interaction of a beam of charged particles and excited eigenwaves of the resonator, taking into account not only Cherenkov resonances, but also parametric resonances of higher order in the amplitudes of excited waves; - to study the process of diffusion of relativistic electron beams that generate high-energy electromagnetic radiation, taking into account two important factors: the presence of synchrotron cooling and relatively high strength of the external periodic field, which leads to higher harmonics of radiation; - to determine the conditions of applicability and achievable accuracy when using the diffusion approach when describing the transport of fast neutrons in a heterogeneous multiplicative medium with variable diffusion coefficients; - to obtain the dependences of the magnitude of the ionization losses of the bunch of particles on the time due to the spreading of the bunch, under the conditions of coherent effects in these losses; - to investigate the scenario of the process of redistribution of particles by scattering angles during particle channeling in the crystal. popup.nrat_date 2024-12-09 Close