Перегляд за автором "Mytrochenko, V.V."

Сортувати за: Порядок: Результатів:

  • Accelerating section for technological electron linac 
    Ayzatsky, M.I.; Biller, E.Z.; Dovbnya, A.N.; Kramarenko, K.Yu.; Khodak, І.V.; Kushnir, V.A.; Mytrochenko, V.V.; Nikitina, T.Ph.; Opanasenko, A.M.; Perezhogin, S.A.; Stepin, D.L.; Selivanov, L.I.; Zhiglo, V.Ph. (Вопросы атомной науки и техники, 2016)
    The construction parameters and electrodynamic characteristics of the accelerating section with phase advance of 120° at the operating frequency of 2856 MHz are presented. This section is designed to upgrade the electron ...
  • Beam dynamics in an initial part of a high brightness electron linac 
    Ayzatsky, M.I.; Gutovsky, D.E.; Dovbnya, A.N.; Kushnir, V.A.; Mytrochenko, V.V.; Perezhogin, S.A. (Вопросы атомной науки и техники, 2001)
    The paper is focused on problems of obtaining a bright electron beam in a system that includes a grid-controlled electron gun, a klystron type subharmonical buncher, a standing wave fundamental buncher with increasing ...
  • Beam parameters of an S-band electron linac with beam energy of 30…100 MeV 
    Dovbnya, A.N.; Aizatsky, M.I.; Boriskin, V.N.; Kushnir, V.A.; Mytrochenko, V.V.; Opanasenko, A.N.; Perezhogin, S.A.; Reprintsev, L.V.; Savchenko, A.N.; Stepin, D.L.; Tatanov, V.I.; Zhiglo, V.F. (Вопросы атомной науки и техники, 2006)
    An S-band electron linac has been erected at the NSC KIPT to cover an energy range from 30 to about of 100 MeV. The linac consists of a couple of four-meter long piecewise homogeneous accelerating sections. Each section is ...
  • Cooling systems for the LU-10 accelerating section 
    Zhiglo, V.F.; Kushnir, V.A.; Mytrochenko, V.V.; Kramarenko, K.Yu. (Вопросы атомной науки и техники, 2015)
    Parameters and design of the cooling system of the accelerating section for industrial high power linac are given. It is shown that the heating of the outer surface of the accelerating section constitutes 1°C at average ...
  • Cross-sections for photonuclear reactions ⁹³Nb(γ,n)⁹²ᵐNb and ⁹³Nb(γ,n)⁹²ᵗNb in the end-point bremsstrahlung energies 36…91 MeV 
    Vodin, A.N.; Deiev, O.S.; Timchenko, I.S.; Olejnik, S.N.; Kachan, A.S.; Korda, L.P.; Kuplennikov, E.L.; Kushnir, V.A.; Mytrochenko, V.V.; Perezhogin, S.A.; Pilipenko, N.N.; Trubnikov, V.S. (Вопросы атомной науки и техники, 2020)
    The flux-weighted averaged over the energy range of bremsstrahlung spectrum from reaction threshold up to the maximum energy of γ-ray cross-sections <σ (E)> of the ⁹³Nb(γ,n)⁹²ᵐNb and ⁹³Nb(γ,n)⁹²ᵗNb photonuclear reactions ...
  • Cross-sections of photonuclear reactions on ⁿᵃᵗMo targets at end-point bremsstrahlung energy up to Eᵧₘₐₓ = 100 MeV 
    Vodin, A.N.; Deiev, O.S.; Timchenko, I.S.; Olejnik, S.M.; Kushnir, V.A.; Mytrochenko, V.V.; Perezhogin, S.O.; Bocharov, V.O. (Вопросы атомной науки и техники, 2021)
    Experiments to determine the yields and bremsstrahlung flux-averaged cross-sections ⟨σ(Еγmax)⟩ of photonuclear reactions on the natural Mo targets were performed on the beam from the electron linear accelerator LUE-40 with ...
  • Dielectric RF resonators with open boundaries for studying radiation effect on electrodynamic characteristics of solid dielectrics 
    Kushnir, V.A.; Kramarenko, K.Yu.; Mytrochenko, V.V.; Nikitina, O.D.; Perezhogin, S.A.; Selivanov, L.I. (Вопросы атомной науки и техники, 2020)
    The use of dielectric materials in the charged particles accelerators requires investigation of changes in the electrodynamic properties of these materials under the influence of ionizing radiation. First of all it is ...
  • Electromagnetic fields in nonuniform disk-loaded waveguides 
    Ayzatsky, M.I.; Mytrochenko, V.V. (Вопросы атомной науки и техники, 2016)
    On the base of general approach we obtain some results that can be useful in the process of tuning of nonunifrom disc-loaded waveguides. Our consideration has shown that simple values that characterize the detuning of the ...
  • Estimation of BBU threshold current in an inhomogeneous accelerating section 
    Ayzatsky, M.I.; Kramarenko, K.Yu.; Mytrochenko, V.V. (Вопросы атомной науки и техники, 2020)
    In this work we describe the procedure of estimation of regenerative beam blowup threshold current in an inhomogeneous accelerating section. The self-consistent problem of transverse motion of particles in the field of ...
  • Experimental study of characteristics of intense electron beam injector 
    Aizatskyi, M.I.; Khodak, I.V.; Kushnir, V.A.; Mytrochenko, V.V.; Perezhogin, S.A.; Stepin, D.L.; Zhiglo, V.F. (Вопросы атомной науки и техники, 2013)
    Application of low voltage electron source requires the use of steep change of on-axis RF field along the buncher for electrons to be bunched and accelerated efficiently. The paper presents the results of studies of the ...
  • Influence of high-energy electrons irradiation on nanoceramics properties of zirconia 
    Aizatskyi, M.I.; Dikiy, N.P.; Dovbnya, A.N.; Fedorets, I.D.; Kushnir, V.A.; Lyashko, Yu.V.; Medvedev, D.V.; Mytrochenko, V.V.; Onishchenko, I.N.; Perezhogin, S.A.; Pelichatyi, N.M.; Danilenko, I.A.; Konstantinova, T.E. (Вопросы атомной науки и техники, 2013)
    Radiation defects in nanoceramics zirconia were investigated after electron irradiation with energy 41…89 MeV up to doze 2.28…5.7·10¹⁴ electrons/cm². Radioactive isotopes ⁸⁷,⁸⁸Y, ⁸⁸,⁸⁹,⁹⁵Zr, ⁹⁵Nb, ¹⁷⁵Hf are registered after ...
  • Investigation of the hollow beam structure on optical transition radiaton 
    Ayzatsky, M.I.; Kushnir, V.A.; Mytrochenko, V.V.; Opanasenko, A.; Zhiglo, V. (Вопросы атомной науки и техники, 2004)
    The features of studying the structure of a dense annular beam with OTR from metal targets at electron energy ≤ 50 keV are described. The image of the cross section of the annular beam with sub-millimeter wall thickness ...
  • Magnetic system for cleaning the gamma beam at the LUE-40 electron linac output 
    Mytrochenko, V.V.; Perezhogin, S.O.; Selivanov, L.I.; Zhyglo, V.Ph.; Vodin, A.N.; Deiev, O.S.; Olejnik, S.M.; Timchenko, I.S; Kushnir, V.A. (Вопросы атомной науки и техники, 2022)
    The bremsstrahlung of accelerated electrons passing through a converter is used to study multiparticle photo-nuclear reactions. The results of calculations, numerical modeling, design, and testing of a special magnetic ...
  • Methods of adjusting forming lines using a low voltage thyristor switch 
    Kosoi, O.I.; Mats, V.O.; Mytrochenko, V.V.; Titov, V.Yu.; Tur, Yu.D.; Chertishchev, I.O. (Вопросы атомной науки и техники, 2021)
    A method of adjusting the generating lines of a high-voltage pulse modulator with a thyristor switch at a charging voltage of 150 V is given. The degree of pre-distortion is determined to obtain in the operating mode (60 ...
  • NSC KIPT positron source. Pre-project research 
    Bulyak, E.V.; Dovbnya, A.N.; Kushnir, V.A.; Mytrochenko, V.V.; Perezhogin, S.A.; Opanasenko, A.N. (Вопросы атомной науки и техники, 2020)
    We present the results of theoretical and numerical studies on the source of slow positrons for NSC KIPT. The positrons are intended to generate with the electrons of 9, 40 or 90 MeV available at the KIPT electron linacs. ...
  • On a method of tuning of couplers for electron LINACS based on disk loaded waveguides 
    Aizatskyi, N.I.; Kramarenko, K.Yu.; Khodak, I.V.; Kushnir, V.A.; Mytrochenko, V.V.; Opanasenko, A.M.; Perezhogin, S.A.; Selivanov, L.I.; Zhiglo, V.F. (Вопросы атомной науки и техники, 2015)
    The article presents an adjustment procedure for an input and output couplers of a traveling wave accelerating section based on cylindrical disk loaded waveguide (CDLW). The procedure consists in bead pull measurement of ...
  • On transversal instability of beam in powerful S-band linear electron accelerators 
    Aizatsky, M.I.; Kramarenko, E.U.; Khodak, I.V.; Kushnir, V.A.; Mytrochenko, V.V.; Perezhogin, S.A. (Вопросы атомной науки и техники, 2006)
    High pulse current of electrons in a linear resonance accelerator assists the increase of overall efficiency of the facility. At the same time, there is a danger of development of transversal instability of a beam (BBU), ...
  • Photonuclear reactions cross-sections at energies up to 100 MeV for different experimental setups 
    Deiev, O.S.; Timchenko, I.S.; Olejnik, S.M.; Potin, S.M.; Kushnir, V.A.; Mytrochenko, V.V.; Perezhogin, S.A.; Bocharov, V.А.; Shramenko, B.I. (Problems of Atomic Science and Technology, 2022)
    In experiments on the electron linac LUE-40 of RDC “Accelerator” NSC KIPT, the flux-averaged cross-sections ⟨σ(Еγmax)⟩exp of photonuclear reactions ¹⁰⁰Mo(γ,n)⁹⁹Mo, ²⁷Al(γ,x)²⁴Na, ⁹³Nb(γ,n)⁹²ᵐNb, ⁹³Nb(γ,3n)⁹⁰Nb, and ...
  • Project of a beamline for the NESTOR storage ring linac to provide nuclear physics research 
    Mytrochenko, V.V.; Perezhogin, S.O.; Kushnir, V.A.; Ganenko, V.B.; Ayzatsky, M.I.; Kovalenko, G.D. (Вопросы атомной науки и техники, 2021)
    The results of selfconsistent beam dynamics simulation are presented for the linac of the NESTOR storage ring. Consideration is given to the influence of particle energy change at the output of the electron gun during the ...
  • Radiation induced softening of crystals 
    Dubinko, V.I.; Borysenko, V.N.; Kushnir, V.A.; Khodak, I.V.; Mytrochenko, V.V.; Gamov, V.O. (Вопросы атомной науки и техники, 2021)
    Under irradiation of crystals, atomic vibrations of the lattice that are large enough in amplitude so that the linear approximation and therefore the conventional phonon description of the lattice is not enough. At the ...