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Information × Registration Number 0220U104805, 0120U102300 , R & D reports Title Optimization of formation and control of electron beam fluxes and bremsstrahlung in radiation technologies. popup.stage_title Head Lazuryk Valentyn T., Доктор фізико-математичних наук Registration Date 28-12-2020 Organization V.N. Karazin Kharkiv National University popup.description2 The aim of this work is to optimize the use of electron beams and bremsstrahlung and effectively control their characteristics in radiation processes. The object of study is the physical processes of formation of radiation fields (electrons and gamma rays) and their interaction with irradiated objects. The Monte Carlo method in the PENELOPE package performed calculations of dose distributions along the depth in objects irradiated with electrons at different angles. For energies of 2, 6, 10 MeV and angles of incidence of electrons from 0 to 75 degrees, dose distributions along the depth were calculated and a database was created for basic materials used in radiation technologies (polyethylene, food, etc.) with different densities. For one-side and double-side electron irradiation (in the energy range 2 ÷ 10 MeV) of objects, a method for determining the optimal parameters of beams falling at different angles has been developed, which provides minimal dose inhomogeneity in depth. The method is based on the minimization of the standard deviation of the deposited dose (energy) along the depth of the irradiated object, and the solution by a numerical method of a system of nonlinear equations. The methodology for determining the effect on the inhomogeneity of the deposited dose in the object of deviations from the nominal values: energy and angle of incidence of electrons, the intensity of the additional electron beam (angle of incidence on the object  ≠ 0) and the thickness of the object under double-side irradiation. The degree of influence of these factors on the inhomogeneity of the deposited dose is determined. The heat source in the model is set on the basis of energy data obtained by the Monte Carlo method. The calculation of thermohydraulic parameters and cooling conditions of the system is carried out by solving conjugate problems of thermodynamics and hydrodynamics. The simulation was performed using the software package SolidWorks Flow Simulation. Product Description popup.authors Alyokhina Svitlana V Makhnenko Galina V Pyshkin Volodymyr B Rudychev Yegor V Rudychev Volodymyr H. popup.nrat_date 2020-12-28 Close