Перегляд за автором "Khodak, I.V."

Сортувати за: Порядок: Результатів:

  • 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 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 ...
  • 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 ...
  • 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 ...
  • 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 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 ...
  • Experimental study of secondary emission mode in RF gun with thermionic cathode 
    Khodak, I.V.; Kushnir, V.A.; Mitrochenko, V.V.; Perezogin, S.A.; Stepin, D.L. (Вопросы атомной науки и техники, 2004)
    The paper deals with the problems concerning the influence of secondary emission on the operation of radio frequency (RF) gun with thermionic cathode. The characteristics of particles bombarding the cathode are investigated by ...
  • High-current hollow beam dynamics in RF electron guns 
    Khodak, I.V.; Kushnir, V.A.; Mitrochenko, V.V. (Вопросы атомной науки и техники, 2004)
    RF electron guns with a metal-dielectric cathode are able to generate intense beams with nanosecond current pulse duration. The plasma developed during the dielectric surface flashover in vacuum is the source of particles ...
  • High-temperature metallic cathode for RF gun 
    Biller, E.Z.; Khodak, I.V.; Kushnir, V.A.; Mitrochenko, V.V.; M'akushko, L.K.; Stepin, D.L.; Zhiglo, V.F. (Вопросы атомной науки и техники, 2001)
    In the paper a metallic thermionic cathode with an electron beam heating to be used in RF gun is proposed. The high-temperature metallic emitter made of high-melting material will allow to decrease significantly the pulse ...
  • Main systems development of K-band linac 
    Ayzatsky, M.I.; Biller, E.Z.; Dovbnya, A.N.; Kushnir, V.A.; Mitrochenko, V.V.; Perezhogin, S.A.; Khodak, I.V. (Вопросы атомной науки и техники, 1999)
    The main purpose of our work is the creation of the small-sized linear electron accelerator on the energy up to 5 MeV on the base of such low-power Х- and K-bands sources. In this paper the results on development of main ...
  • Method of electron emission control in RF guns 
    Khodak, I.V.; Kushnir, V.A. (Вопросы атомной науки и техники, 2001)
    The electron emission control method for a RF gun is considered. According to the main idea of the method, the additional resonance system is created in a cathode region where the RF field strength could be varied using ...
  • 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), ...
  • Parameters of electron beam generated by RF gun with ferroelectric cathode 
    Khodak, I.V.; Kushnir, V.A.; Romas’ko, V.P.; Zakutin, V.V. (Вопросы атомной науки и техники, 2006)
    RF guns with thermoemission and photoemission cathodes generate an electron beam pulse current and current pulse duration of 10⁻¹…10³ A and 10⁻⁶…10⁻¹² s, respectively. It is proposed to apply a ferroelectric cathode in ...
  • Performance analysis of 30 MeV electron linac with a new injector system 
    Gokov, S.P.; Makhnenko, L.A.; Khodak, I.V.; Shopen, O.A. (Вопросы атомной науки и техники, 2009)
    The present paper deals with the problems of 30 MeV electron linear accelerator (LINAC-30) upgrading to attain optimum beam spectral characteristics. As one of the LINAC-30 upgrading variants, consideration has been ...
  • 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 ...
  • RF electron gun with metallic cathode - calculation and experimental study 
    Khodak, I.V.; Kushnir, V.A.; Mitrochenko, V.V.; Stepin, D.L.; Zhiglo, V.F. (Вопросы атомной науки и техники, 2002)
    The present paper is devoted to the RF electron source design for a linear accelerator. In contrary with known RF guns with thermionic cathodes the designed electron source has high temperature metallic cathode. This permits ...
  • S-band electron linac with beam energy of 30…100 MeV 
    Antipov, K.I.; Ayzatsky, M.I.; Akchurin, Yu.I.; Gurin, V.A.; Boriskin, V.N.; Beloglasov, V.I.; Biller, E.Z.; Demidov, N.V.; Dovbnya, A.N.; Dronov, R.N.; Khodak, I.V.; Kosoy, A.I.; Kushnir, V.A.; Momot, V.A.; Myakushko, L.K.; Mytrochenko, V.V.; Nikitina, T.F.; Opanasenko, A.N.; Perezhogin, S.A.; Pugachev, G.D.; Repikhov, O.A.; Reprintzev, L.V.; Shendrik, V.A.; Stepin, D.L.; Tarasov, G.E.; Tur, Yu.D.; Zhiglo, V.F. (Вопросы атомной науки и техники, 2004)
    The S-band electron linac has been designed at NSC KIPT to cover an energy range from 30 to 100 MeV. The linac consists of the injector based on evanescent oscillations and the two four-meter long piecewise homogeneous ...