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Перегляд Problems of Atomic Science and Technology, 2019, № 6 за датою випуску

Репозиторій DSpace/Manakin

Перегляд Problems of Atomic Science and Technology, 2019, № 6 за датою випуску

Сортувати за: Порядок: Результатів:

  • Operation of an industrial electron accelerator in a double-beam e,X-mode 
    Shevchenko, V.A.; Tenishev, A.Eh.; Uvarov, V.L.; Zakharchenko, A.A. (Вопросы атомной науки и техники, 2019)
    Analysis of mixed e,X-radiation formation in output devices of an industrial electron accelerator is conducted. The possibility is demonstrated to obtain an extra radiation channel on the basis of a practically free source ...
  • Optimization of a Compton direct-charge detector for monitoring high-energy bremsstrahlung radiation 
    Nikiforov, V.I.; Shlyakhov, I.N.; Shevchenko, V.A.; Tenishev, A.Eh.; Uvarov, V.L. (Вопросы атомной науки и техники, 2019)
    The conditions of application of a Compton direct-charge detector (DCD) for monitoring of intensity of the highenergy bremsstrahlung (X-ray) radiation are studied. A method is described for calculation of characteristics ...
  • On critical parameters of photonuclear isotope production 
    Uvarov, V.L. (Вопросы атомной науки и техники, 2019)
    Analytical model for description of isotope generation in a thick production target exposed to no uniform flux of high-energy bremsstrahlung radiation is developed. A set of principal process parameters determinative the ...
  • Use of molybdenite nanoparticles for photonuclear production of technetium-99m 
    Dikiy, N.P.; Lyashko, Yu.V.; Medvedeva, E.P.; Medvedev, D.V.; Uvarov, V.L.; Fedorets, I.D. (Вопросы атомной науки и техники, 2019)
    The possibility production of ⁹⁹Mo radioisotope with using recoil nuclei of molybdenite nanoparticles from reaction ¹⁰⁰Mo(γ,n)⁹⁹Mo was investigated. The use of thermally stable molybdenite allows solving the problem of ...
  • Cross-sections in photonuclear reactions with multiple neutron emission 
    Bezshyyko, O.A.; Vodin, O.M; Golinka-Bezshyyko, L.O.; Kotenko, A.V.; Kushnir, V.A.; Lubynets, O.V.; Mitrochenko, V.V.; Olejnik, S.M.; Perezhogin, S.A.; Vallerand, C. (Вопросы атомной науки и техники, 2019)
    The energy dependence of the reaction cross-sections A(γ,xn)(A-xn) was studied in the energy range 19...70 MeV, i.e. beyond Great Dipole Resonance (GDR) region. Experimental data were taken from international database EXFOR ...
  • Interval estimation of distribution parameter by statistical trials of expected value 
    Barannik, V.O. (Вопросы атомной науки и техники, 2019)
    The distribution parameter interval estimators are obtained by direct numerical approximation of the expected value for infinite and finite populations under the known upper and lower bounds of the random variable domain. ...
  • Determination of the average absorbed energy of electrons beam in objects at radiation processing 
    Lazurik, V.T.; Lazurik, V.M.; Popov, G.Ph.; Zimek, Z. (Вопросы атомной науки и техники, 2019)
    A new conservative computational procedure is proposed for calculating the average absorbed energy of electron radiation in objects undergoing radiation processing. Semi-empirical relationships were obtained and software ...
  • Application of the spectral method to stochastic filter analysis 
    Kharchenko, O.I. (Вопросы атомной науки и техники, 2019)
    The problem of standing out a signal from an additive mixture of a harmonic signal and white Gaussian noise is considered. The analysis is based on the phenomenon of stochastic resonance (SR), which consists in amplifying ...
  • Activation of ⁹³Nb nuclei on the linac LUE-40 of RDC “Accelerator” and determination of photonuclear reaction cross-sections 
    Vodin, O.M.; Deiev, O.S.; Olejnik, S.M. (Вопросы атомной науки и техники, 2019)
    The bremsstrahlung spectra of medium-energy electrons (30…100 МeV) were calculated in GEANT4. Crosssections for photonuclear reactions were calculated in TALYS1.9. A convolution over the energy of the crosssections of one- ...
  • Opportunities for the use of the small-size accelerator VGIK-1 
    Vinnikiov, D.V.; Buravilov, I.V.; Yuferov, V.B.; Ponomarev, A.N.; Tkachev, V.I. (Вопросы атомной науки и техники, 2019)
    The experimental data on modification of the surface of metals, alloys and materials coated using the method of irradiation by a heavy-current electron beam with the energy of 300 keV have been given. The specimen surface ...
  • In memory of Moisey Isaakovich Kaganov 
    Bakai, O.S.; Bazaliy, Ya.B.; Yu, Lu (Вопросы атомной науки и техники, 2019)
    Professor Moisey Isaakovich Kaganov passed away at the age of 99 on August 31, 2019. He was a prominent theoretical physicist, a talented promoter of science, and an extraordinary personality
  • Surface morphology and sputtering of FeCrAl coating on steel exposed to low-energy deuterium plasmas 
    Voyevodin, V.N.; Tolstolutskaya, G.D.; Nikitin, A.V.; Vasilenko, R.L.; Kuprin, A.S.; Belous, V.A.; Ovcharenko, V.D. (Вопросы атомной науки и техники, 2019)
    Processes of sputtering and surface modification of FeCrAl coatings deposited on steel by vacuum arc was studied under the influence of low-energy (500 eV) deuterium plasma with fluence (4⋅10²⁴) D+/m² at room temperature. ...
  • Operation control system of sterilization installation on the basis of the accelerator UELV-10-10-S-70 
    Bystrov, P.A.; Pavlov, Yu.S.; Kazyakin, А.А.; Kozlov, A.А. (Вопросы атомной науки и техники, 2019)
    The design of the system for monitoring and recording the operating parameters of the radiation installation at the IPCE RAS on the basis of the accelerator UELV-10-10-S-70 is presented. Solutions are proposed for collecting ...
  • Neutron-physical characteristics of a system of quasi-infinite depleted uranium blanket – particle accelerator. Monte Carlo simulation 
    Bukhal, O.V.; Husak, K.V.; Zhuk, I.V.; Voronko, V.А.; Sotnikov, V.V.; Zhadan, A.А.; Baldin, A.А.; Tyutyunnikov, S.I. (Вопросы атомной науки и техники, 2019)
    Simulation of a quasi-infinite uranium target irradiated by 1 GeV proton and deuteron particles with the help of FLUKA simulation package was carried out. Neutron spectra and neutron flux in a target volume were obtained. ...
  • The cell for electron irradiation of stressed steel samples in a supercritical water flow for corrosion evaluation 
    Bakai, A.S.; Boriskin, V.N.; Bratchenko, M.I.; Dronov, R.N.; Dyuldya, S.V.; Gorenko, Yu.V.; Shelepko, S.V. (Вопросы атомной науки и техники, 2019)
    To study experimentally the stress enhanced corrosion of structural materials in a water coolant flow under electron irradiation, a novel design of the target irradiation cell was developed. The stress application scheme ...
  • Application of cathodoluminescence for on-line monitoring of regime of an industrial electron accelerator 
    Pomatsalyuk, R.I.; Romanovsky, S.K.; Shevchenko, V.A.; Tenishev, A.Eh.; Titov, V.Yu.; Titov, D.V.; Uvarov, V.L.; Zakharchenko, A.A. (Вопросы атомной науки и техники, 2019)
    Continuous monitoring of critical parameters of an industrial electron accelerator provides quality of product processing. For that purpose, the methods of contact-free diagnostics of processing regime are developed. One ...
  • Diffusion coefficients in momentum for a relativistic electron beam in an undulator 
    Ognivenko, V.V. (Вопросы атомной науки и техники, 2019)
    We consider a motion of a relativistic electron beam in a spatially periodic magnetic field of an undulator taking into account the influence of the spontaneous radiation fields on this motion. The diffusion coefficients ...
  • Wakefields and drive electron bunches dynamics in three-zone dielectric resonator at asymmetrical injection 
    Galaydych, K.V.; Kniaziev, R.R.; Krivonosov, G.A.; Onishchenko, I.N.; Sotnikov, G.V. (Вопросы атомной науки и техники, 2019)
    A numerical study of the wakefield excitation in a rectangular dielectric-loaded resonator by a sequence of relativistic electron bunches in the case of non-axial injection is carried out. The effect of the shift of injected ...
  • Radiation induced demagnetization of permanent magnets under 10 MeV electron beam 
    Bovda, V.А.; Bovda, А.М.; Guk, I.S.; Dovbnya, А.N.; Lyashchenko, V.N.; Mytsykov, А.О.; Onishchenko, L.V.; Kandybey, S.S.; Repihov, O.A. (Вопросы атомной науки и техники, 2019)
    Nd-Fe-B and Sm-Co magnets were irradiated by electron beam with the energy of 10 MeV and bremsstrahlung. The absorbed dose was 16 and 160 Grad. It was found that magnetic flux of Nd-Fe-B magnets decrease with irradiation, ...
  • Increase of efficiency of acceleration of the test electron bunch by sequence of electron bunches in the rectangular dielectric resonator at plasma filling 
    Markov, P.I.; Onishchenko, I.N.; Sotnikov, G.V. (Вопросы атомной науки и техники, 2019)
    A result of numerical simulation of acceleration of the test electron bunch following a sequence of relativistic electron bunches in the rectangular dielectric resonator when filling the drift channel with plasma of different ...

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