Перегляд за автором "Ponomarev, A.G."

Сортувати за: Порядок: Результатів:

  • A conceptual design of a MeV-energy ion microprobe with an immersion probe-forming system 
    Ponomarev, A.G.; Ignat’ev, I.G.; Magilin, D.V.; Miroshnichenko, V.I.; Storizhko, V.E. (Вопросы атомной науки и техники, 2003)
    The authors propose a new design for a MeV-energy ion microprobe based on the immersion probe-forming system that employs the accelerating tube at an early stage of beam focusing. The final probing beam formation on the ...
  • Aluminum surface coating of copper using highcurrent electron beam 
    Donets, S.E.; Klepikov, V.F.; Lytvynenko, V.V.; Lonin, Yu.F.; Ponomarev, A.G.; Starovoytov, R.I.; Startsev, O.A.; Uvarov, V.T. (Вопросы атомной науки и техники, 2015)
    High-current electron beam irradiation has been applied for surface coating of copper with aluminum in ablative mode at the TEMP-A accelerator with energy of 350 keV, pulse length of 5 μs, and fluence 10…200 J/cm2. The ...
  • Analysis of changes in the phase and structural state of an aluminum alloy 1933 surface layer, melted by a pulsed electron beam 
    Myla, D.E.; Bryukhovetsky, V.V.; Lytvynenko, V.V.; Poyda, V.P.; Poyda, A.V.; Klepikov, V.F.; Uvarov, V.T.; Lonin, Yu.F.; Ponomarev, A.G. (Вопросы атомной науки и техники, 2020)
    The structural and phase changes in the surface layer of an aluminum alloy 1933 caused by the action of a relativistic pulsed electron beam are studied. The structural and phase state of this layer is determined by the ...
  • Application of radiation processes for testing of gas turbine blades 
    Bazaleev, M.I.; Bryukhovetsky, V.V.; Donets, S.Ye.; Klepikov, V.F.; Lytvynenko, V.V.; Prokhorenko, E.M.; Startsev, O.A.; Lonin, Yu.F.; Ponomarev, A.G.; Uvarov, V.T. (Вопросы атомной науки и техники, 2019)
    Structural integrity of the gas turbine blades is of great concern. A set of methods and instruments is proposed to study the problems of the test loading of the industrial turbine blades. The approach aims to model the ...
  • Behavior of molybdenum target in condition of irradiation by the high current relativistic electron beam 
    Donets, S.E.; Lytvynenko, V.V.; Lonin, Yu.F.; Ponomarev, A.G.; Rokhmanov, N.Ya.; Starovoytov, R.I.; Uvarov, V.T. (Вопросы атомной науки и техники, 2018)
    The problems of the stability of molybdenum targets to the action of concentrated energy fluxes are considered. A series of irradiations of a molybdenum target with a high-current relativistic electron beam was carried ...
  • Diagnostic module for the radiation beam system “TEMP-B” 
    Batrakov, A.B.; Glushko, E.G.; Yegorov, А.М.; Zinchenko, A.A.; Lonin, Y.F.; Ponomarev, A.G.; Fedotov, S.I. (Вопросы атомной науки и техники, 2017)
    The power module designed for the calibration and adjustment of the units and components of microsecond accelerator of relativistic electron beams (REB) “Temp-B” has been developed and manufactured. The noise immune gauge ...
  • Dynamics of the gas-plasma torch formed by the highcurrent electron beam action on solid targets 
    Klepikov, V.F.; Lytvynenko, V.V.; Lonin, Yu.F.; Ponomarev, A.G.; Tolstolutskiy, O.G.; Uvarov, V.V.; Uvarov, V.T. (Вопросы атомной науки и техники, 2009)
    The interaction of high-current REВ with the surface of solid targets was investigated. The target material was stainless steel 12Х18Н10Т, graphite, tungsten, plexiglas. The optical diagnostic methods were used to determine ...
  • Formation of MeV energy ion beams with high current density for materials micro-irradiation 
    Romanenko, A.V.; Ponomarev, A.G.; Miroshnichenko, V.I. (Вопросы атомной науки и техники, 2013)
    A numerical analysis has been performed for the optimum configuration of a probe-forming system based on magnetic quadrupole lens multiplets in a nuclear scanning microprobe intended for irradiations of micron-size areas. ...
  • Frequency analysis of the stochastic filtering using transfer functions. Part I: Sinusoidal input 
    Kharchenko, O. I.; Lonin, Yu.F.; Ponomarev, A.G. (Вопросы атомной науки и техники, 2018)
    Volterra-series-type analyses to communication systems with stochastic resonance driven by sine waves result to. The n -hold Fourier transform of the n -th Volterra kernel plays an important role in the analysis. Methods ...
  • Generation UWB signal at energization of a helical antenna high-current REB 
    Balakirev, V.A.; Gorban’, A.M.; Egorov, A.M.; Kantemirov, A.V.; Lonin, Yu.F.; Ponomarev, A.G.; Onishenko, N.I.; Uvarov, V.T.; Chumakov, V.I.; Shevtusev, D.A.; Sherney, V.V. (Вопросы атомной науки и техники, 2006)
    In operation the possibility of generation of UWB signal was researched at excitement of a helical antenna by a high-current relativistic bundle of nanosecond duration. The experiments were conducted on a high-current ...
  • High resolution probe-forming system with spherical aberration correction for nuclear microprobe 
    Ponomarev, A.G.; Kolinko, S.V.; Polozhii, H.E.; Rebrov, V.A. (Problems of Atomic Science and Technology, 2023)
    A probe-forming system based on a separate orthomorphic quadruplet of magnetic quadrupole lenses with a short working distance is considered, allowing the system demagnification to be significantly increased. Three magnetic ...
  • Ion microbeam formation for study of radiationinduced segregation at grain boundaries in construction materials 
    Romanenko, A.V.; Ponomarov, A.A.; Ponomarev, A.G. (Вопросы атомной науки и техники, 2015)
    The approaches for creating focused ion beams with a high current density and near-uniform current distribution in a spot, that allows an uniform dose for further micro irradiation technique, were considered. A numerical ...
  • Mathematical model of an excitation by electron beam of “whispering gallery” modes in cylindrical dielectric resonator 
    Galaydych, K.V.; Lonin, Yu.F.; Ponomarev, A.G.; Prokopenko, Yu.V.; Sotnikov, G.V. (2010)
    For generation of oscillations of millimeter and submillimeter wave lengths can be used "whispering gallery" modes excited in a dielectric resonator by an azimuthally-modulated electron beam. The mathematical model of ...
  • Microstructure and property modifications in surface layers of a AA6111 aluminum alloy induced by high-current pulsed relativistic electron beam 
    Myla, D.E.; Bryukhovetsky, V.V.; Lytvynenko, V.V.; Petrushenko, S.I.; Nevgasimov, O.O.; Lonin, Yu.F.; Ponomarev, A.G.; Uvarov, V.T. (Вопросы атомной науки и техники, 2022)
    The processing of the AA6111-T4 aluminum alloy by the high-current relativistic electron beams affects the forming of the surface layer with a modified structure and phase state. The depth of the modified surface layer ...
  • Modification effects of microsecond high current electron beam exposure on titanium VT22 alloy 
    Donets, S.Ye.; Klepikov, V.F.; Lytvynenko, V.V.; Prokhorenko, E.M.; Startsev, O.A.; Lonin, Yu.F.; Ponomarev, A.G.; Uvarov, V.T.; Starovoytov, R.I. (Вопросы атомной науки и техники, 2019)
    Titanium VT22 alloy was irradiated in the TEMP-A accelerator with the high current electron beam with the energy of 350 keV, beam current of 2 kA, pulse length around 4 µs, and beam diameter of 45 mm. The irradiation was ...
  • Modification of structure of the surface of steel (ХГС) as a result of influences of high-current electron beam 
    Prokhorenko, E.M.; Lytvynenko, V.V.; Melyakovа, O.А.; Lonin, Yu.F.; Ponomarev, A.G.; Uvarov, V.T.; Shul'gin, N.A.; Prokhorenko, T.G. (Вопросы атомной науки и техники, 2020)
    The steel surface (ХГС) was irradiated with a high-current electron beam. A high-current electron beam was obtained in the TEMP-A accelerator. Steel samples were made from drum mill balls. The balls had varying degrees of ...
  • Modification of the aluminum alloy by the radiation and mechanical treatment 
    Donets, S.E.; Lytvynenko, V.V.; Klepikov, V.F.; Lonin, Yu.F.; Ponomarev, A.G.; Selivanov, S.Ye.; Starovoytov, R.I.; Uvarov, V.T. (Вопросы атомной науки и техники, 2020)
    The paper discusses the problem of increasing the performance properties of aluminum alloy D16 for possible more efficient use in the fields of transport engineering. A property modification tool is a high current relativistic ...
  • Modification of the D16 aluminum alloy structure by pulsed relativistic electron beam 
    Klepikov, V.F.; Uvarov, V.T.; Kivshyk, V.F.; Ponomarev, A.G.; Bazaleev, М.I.; Bryukhovetsky, V.V.; Kuznetsova, R.I.; Lytvynenko, V.V. (Вопросы атомной науки и техники, 2001)
    The influence of a pulsed intense relativistic electron beam on mesoscopic structural characteristics of D16 aluminium alloy plates is studied. The phenomenological parameters of superplastic flow of alloy D16 plates after ...
  • Monitoring the capacitor charge voltage in the pulse voltage generator using the accelerator of relativistic electron beams 
    Batrakov, A.B.; Glushko, E.G.; Zinchenko, A.A.; Lonin, Y.F.; Ponomarev, A.G.; Fedotov, S.I. (Вопросы атомной науки и техники, 2020)
    Noise-protected high charge voltage meter was manufactured using terminal capacitors of the four-channel pulse voltage generator (PVG). The noise protection is provided by the use of communication lines with fiberoptic ...
  • Morphological characteristics of craters on the surface of AA1933 aluminum alloy irradiated by pulsed electron beam 
    Bryukhovetsky, V.V.; Lytvynenko, V.V.; Lonin, Yu.F.; Myla, D.E.; Ponomarev, A.G.; Uvarov, V.T. (Problems of Atomic Science and Technology, 2023)
    Irradiation of an industrial aluminum alloy AA1933 with an intense pulsed electron beam with particle energy of 0.35 MeV, a beam current of 2.0 kA, a pulse duration of 5 μs, and a beam diameter of 3 cm results in the ...