Перегляд за автором "Kushnir, V.A."

Сортувати за: Порядок: Результатів:

  • About the use in nuclear medicine of pharmaceuticals on the basis of the isotope ¹⁸F and its achievements on linear electron accelerators of NIK "Accelerator" 
    Azarov, A.I.; Dovbnya, A.N.; Dolzhec, M.A.; Kushnir, V.A.; Mitrochenko, V.V.; Perezhogin, S.A.; Selivanov, L.I.; Tereshchenko, V.A.; Titov, V.Yu.; Titov, D.V.; Shevchenko, V.A.; Shramenko, B.I. (Вопросы атомной науки и техники, 2017)
    The importance widely used in the world of Radiopharmaceutical: 2-fluoro [¹⁸F]-2-deoxy-D-glucose (fluo-rideglucose, ¹⁸F) for the diagnosis of various diseases using PET and CT imaging are shown. Provides information about ...
  • 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 ...
  • Application of driven plasma cathode in RF electron gun 
    Khodak, I.V.; Kushnir, V.A. (Вопросы атомной науки и техники, 2004)
    The results of the experimental research of generation of pulsed electron beam in S-band RF gun with driven plasma cathode are described. There has been designed experimental sample of the cathode based on ferroelectric ...
  • 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 dynamics in RF gun with plasma cathode 
    Khodak, I.V.; Kushnir, V.A.; Mitrochenko, V.V.; Opanasenko, A.N. (Вопросы атомной науки и техники, 2017)
    Radiofrequency (RF) guns with a plasma cathode are comparably simple sources of intense electron beam of na-nosecond pulse duration. The plasma cathode is produced either due to the surface high-permittivity dielectric ...
  • 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 ...
  • Beam transient dynamics simulation on the basis of coupled resonators model in injector sections of high current LINACS 
    Aizatskyi, M.I.; Kushnir, V.A.; Kramarenko, K.Yu.; Mitrochenko, V.V. (Вопросы атомной науки и техники, 2013)
    Code on the basis of coupled resonators model was developed for beam transient dynamics simulation in linac injector sections. This code gives possibility to study electron multiflow movement that arises after stopping of ...
  • Bunch length diagnostics with coherent relativistic electron radiation 
    Ayzatsky, M.I.; Khodak, I.V.; Kushnir, V.A.; Mitrochenko, V.V.; Opanasenko, A.N.; Stepin, D.L. (Вопросы атомной науки и техники, 2001)
    One of the most important problems when designing resonance electron linacs with a high beam brightness is creation of an equipment for electron bunch length diagnostics. One of ways to solve this problem is based on ...
  • 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 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 ...
  • 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 ...
  • Electron dynamics in RF sources with a laser controlled emission 
    Khodak, I.V.; Kushnir, V.A.; Mitrochenko, V.V.; Perezhogin, S.A. (Вопросы атомной науки и техники, 2001)
    Photoemission radiofrequency (RF) electron sources are sources of electron beams with extremely high brightness. Beam bunching processes in such devices are well studied in case when laser pulse duration is much lower of ...
  • Electron gun for technological linear accelerator 
    Khodak, I.V.; Kushnir, V.A.; Mitrochenko, V.V.; Perezhogin, S.A.; Stepin, D.L.; Zavada, L.M.; Zhiglo, V.F. (Вопросы атомной науки и техники, 2000)
    The work is purposed to the design of diode electron gun for powerful technologic electron linac and to experimental investigations of the beam parameters at the gun exit. The gun feature is the quick cathode replacement. ...
  • Electron guns for technological linear accelerators 
    Beloglasov, V.I.; Biller, E.Z.; Vishnýakov, V.A.; Dovbush, L.S.; Zhiglo, V.F.; Zavada, L.M.; Zakutin, V.V.; Kosoy, A.I.; Kushnir, V.A.; Mitrochenko, V.V.; Mýakushko, L.K.; Reshetnýak, N.G.; Romas’ko, V.P.; Stepin, D.L.; Tur, Yu.D.; Khodak, I.V. (Вопросы атомной науки и техники, 1999)
    The modern technologies based on linear electron accelerator require intensive beams with small particle losses during acceleration. The beam quality at an accelerator exit is mainly determined by an injector and, in ...
  • Electron injector based on resonance system with evanescent oscillations 
    Ayzatsky, M.I.; Biller, E.Z.; Golovko, N.G.; Kramarenko, K.Yu.; Kushnir, V.A.; Mitrochenko, V.V.; Perezhogin, S.A.; Zhiglo, V.Ph. (Вопросы атомной науки и техники, 2004)
    The article presents the design and simulated performances of an electron gun and a bunching system of the Sband injector based on a coupled cavity chain. Amplitude of the on-axis field varies substantially from the cell ...
  • Electron linacs in NSC KIPT: R&D and application 
    Antipov, K.I.; Ayzatsky, M.I.; Akchurin, Yu.I.; Boriskin, V.N.; Beloglasov, V.I.; Biller, E.Z.; Demidov, N.V.; Dikiy, N.P.; Dovbnya, A.N.; Dovbush, L.S.; Gurin, V.A.; Karasyov, S.P.; Kushnir, V.A.; Kosmin, V.A.; Myakushko, L.K.; Mitrochenko, V.V.; Nikitina, T.F.; Opanasenko, A.N.; Pugachev, G.D.; Repikhov, O.A.; Reprintsev, L.V.; Reshetnyak, N.G.; Popenko, V.A.; Seleznev, V.V.; Shramenko, B.I.; Shendrik, V.A.; Stepin, D.L.; Tarasov, G.E.; Tolstoy, A.E.; Tur, Yu.D.; Uvarov, V.L.; Zadvorny, A.S.; Zakutin, V.V.; Zlunitsyn, E.S.; Zykov, A.I. (Вопросы атомной науки и техники, 2001)
    A review is given about electron linacs of NSC KIPT and their some applications for research of radiation effects in reactor materials, channeling, plasma-beam interactions, geology (gamma-activation analysis of ore samples), ...
  • Emittance measurement of electron beam of RF gun with plasma ferroelectric cathode 
    Khodak, I.V.; Kushnir, V.A. (Вопросы атомной науки и техники, 2006)
    An RF gun with a plasma ferroelectric cathode can generate intense electron beams with peak current in a bunch up to 10² A. The space charge forces of the beam increase errors of the beam emittance measurement using a ...
  • Experimental cross-section evaluation data for ⁷Be photoproduction by ¹²C, ¹⁴N, ¹⁶O nuclei in the energy range between 40…90 MeV 
    Dovbnya, A.N.; Deyev, O.S.; Kushnir, V.A.; Malyshevsky, V.S.; Malykhina, T.V.; Mitrochenko, V.V.; Perezhogin, S.A.; Torgovkin, A.V.; Fomin, G.V.; Shramenko, B.I. (Вопросы атомной науки и техники, 2013)
    The ⁷Be isotope produced in the upper atmosphere under the action of cosmic radiation is an important factor in population radiation load. A correct determination of the radiation dose coming from this isotope calls for ...