Результаты поиска по 'electron irradiation':
Найдено статей: 3
  1. Volokhova A.V., Zemlyanay E.V., Lakhno V.D., Amirkhanov I.V., Puzynin I.V., Puzynina T.P.
    Numerical investigation of photoexcited polaron states in water
    Computer Research and Modeling, 2014, v. 6, no. 2, pp. 253-261

    A method and a complex of computer programs are developed for the numerical simulation of the polaron states excitation process in condensed media. A numerical study of the polaron states formation in water under the action of the ultraviolet range laser irradiation is carried out. Our approach allows to reproduce the experimental data of the hydrated electrons formation. A numerical scheme is presented for the solution of the respective system of nonlinear partial differential equations. Parallel implementation is based on the MPI technique. The numerical results are given in comparison with the experimental data and theoretical estimations.

    Keywords: polaron state, hydrated (solvated) electron, finite difference approximation, parallel implementation.
    Citations: 1 (RSCI).
  2. Maslovskaya A.G., Sivunov A.V.
    The use of finite element method for simulation of heat conductivity processes in polar dielectrics irradiated by electron bunches
    Computer Research and Modeling, 2012, v. 4, no. 4, pp. 767-780

    The paper describes the results of computer simulation of time-dependent temperature fields arising in polar dielectrics irradiated by focused electron bunches with average electron energy when analyzing with electron microscopy techniques. The mathematical model was based on solving several-dimensional nonstationary heat conduction equation with use of numerical finite element method. The approximation of thermal source was performed taking into account the estimation of initial electron distribution determined by Monte-Carlo simulation of electron trajectories. The simulation program was designed in Matlab. The geometrical modeling and calculation results demonstrated the main features of model sample heating by electron beam were presented at the given experimental parameters as well as source approximation.

    Keywords: simulation, finite element method, electron irradiation, polar dielectric, thermal conductivity process.
    Views (last year): 5. Citations: 3 (RSCI).
  3. Sivunov A.V., Maslovskaya A.G.
    Numerical simulation of charging processes at ferroelectric diagnostics with scanning electron microscopy techniques
    Computer Research and Modeling, 2014, v. 6, no. 1, pp. 107-118

    An algorithm of applied problem solving was described to calculate electrical characteristics of electrical field effects in ferroelectrics electron-beam charged. The algorithm was based on implementation of the deterministic model using finite element method as well as taking into account Monte-Carlo simulation results of electron transport. The program application was developed to perform computing experiments.

    Keywords: mathematical model, algorithm, ferroelectric, electron irradiation, charging processes, finite element method, Monte-Carlo method.
    Citations: 2 (RSCI).

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