Перегляд за автором "Konovalov, V.G."

Сортувати за: Порядок: Результатів:

  • Dynamics of the main plasma parameters during spontaneous transition into the mode of improved confinement in torsatron U-3M 
    Pashnev, V.K.; Sorokovoy, E.L.; Petrushenya, A.A.; Mironov, Yu.K.; Konovalov, V.G.; Shapoval, A.N.; Slavnyj, A.S.; Dreval, M.B.; Pugovkin, A.P. (2010)
    The work [1] contains discussion about the changes in plasma energy content and energy lifetime during the transition into the mode of improved confinement at RF-heating in torsatron U-3M in range of rare collision frequencies ...
  • Effect of exposure inside the LHD vessel on reflectance of stainless steel mirrors 
    Voitsenya, V.S.; Sagara, A.; Bardamid, A.F.; Belyaeva, A.I.; Bondarenko, V.N.; Kudlenko, A.D.; Konovalov, V.G.; Solodovchenko, S.I. (Вопросы атомной науки и техники, 2002)
  • Effect of thin contaminating coating on reflectance of metallic mirror placed inside the vacuum chamber of a fusion device 
    Bondarenko, V.N.; Bardamid, A.F.; Konovalov, V.G.; Voitsenya, V.S.; Orlinskij, D.V.; Poperenko, L.V.; Vinnichenko, M.V. (Вопросы атомной науки и техники, 2000)
    The practice of use of diagnostic mirrors inside the fusion devices revealed the appearance of a deposit on the mirror surface. Such deposit is a result of condensation of the erosion materials of those inner components ...
  • Effects of long-term ion bombardment on some optical properties of Rh film mirrors and bulk polycrystalline mirrors 
    Bondarenko, V.N.; Bardamid, A.F.; Voitsenya, V.S.; Konovalov, V.G.; Kulyk, S.P.; Solodovchenko, S.I.; Yakimov, K.I.; Dobrotvorskaya, M.V. (Вопросы атомной науки и техники, 2006)
    The method is suggested for statistical analyzing the surface structure in cases when the spatial size of structure is not negligibly small in comparison with the size of an area to be analyzed. The method is applied to ...
  • Effects of plasma heating on the magnitude and distribution of plasma flows in the helical divertor of the Uragan-3M torsatron 
    Chechkin, V.V.; Grigor’eva, L.I.; Sorokovoy, E.L.; Smirnova, M.S.; Slavnyj, A.S.; Volkov, E.D.; Nazarov, N.I.; Tsybenko, S.A.; Lozin, A.V.; Litvinov, A.P.; Konovalov, V.G.; Bondarenko, V.N.; Kulaga, A.Ye.; Mironov, Yu.K.; Masuzaki, S.; Yamazaki, K. (Вопросы атомной науки и техники, 2002)
    Recently, a strong up-down asymmetry in the poloidal distributions of diverted plasma flows has been observed in the l = 3/m = 9 Uragan-3M torsatron, in many features similar to what have been observed in the l = 2 Heliotron ...
  • Effects of water impact on optical properties of metallic mirror samples 
    Konovalov, V.G.; Solodovchenko, S.I.; Voitsenya, V.S.; Ryzhkov, I.V.; Shtan’, A.F.; Makhov, M.N. (Вопросы атомной науки и техники, 2019)
    The effects of exposure in water or water steam on optical properties of mirror samples fabricated of different metals were studied. Materials of samples were: tungsten, beryllium, molybdenum, stainless steel, nickel, ...
  • Experimental modelling of the effects of CXA bombardment on image quality of the first mirrors in ITER 
    Konovalov, V.G.; Shapoval, A.N.; Volkova, O.Yu.; Voitsenya, V.S. (Вопросы атомной науки и техники, 2005)
    In optical methods of plasma diagnostics in large fusion devices (FD) the use of first mirrors (FM) is supposed. To make the right choice of FM material the modeling studies are needed of the degradation rates of reflectance ...
  • First results of the renewed Uragan-2M torsatron 
    Beletskii, A.A.; Berezhnyj, V.L.; Burchenko, P.Ya.; Chechkin, V.V.; Chernyshenko, V.Ya.; Grigor’eva, L.I.; Gubarev, S.P.; Konovalov, V.G.; Kulaga, A.E.; Kurilo, D.V.; Lesnyakov, G.G.; Losin, A.V.; Maznichenko, S.M.; Mironov, Yu.K.; Moiseenko, V.E.; Ozherel’ev, F.I.; Opaleva, G.P.; Pashnev, V.K.; Pavlichenko, O.S.; Prokopenko, A.V.; Romanov, V.S.; Sergeev, Yu.F.; Skibenko, A.I.; Shapoval, A.N.; Shtan, A.F.; Shvets, O.M.; Solodovchenko, S.I.; Sorokovoy, Ye.L.; Taran, V.S.; Tarasov, I.K.; Tereshin, V.I.; Tsybenko, S.A.; Voitsenya, V.S.; Volkov, E.D.; Zolototrubova, M.I. (Вопросы атомной науки и техники, 2008)
    The results of experimental investigation on the vacuum magnetic surfaces in the l=2 torsatron with an additional toroidal field Uragan-2M at wide varying operation parameters are presented. Also the first results on the ...
  • First results with collecting probes in U-2M torsatron 
    Voitsenya, V.S.; Konovalov, V.G.; Ryzhkov, I.V.; Solodovchenko, S.I.; Shtan’, A.F.; Shapoval, A.N.; Maznichenko, S.M. (Вопросы атомной науки и техники, 2018)
    The results are presented on a postmortem analysis of the mirror-like SS samples and two glass samples exposed in the Uragan-2M (U-2M) vacuum chamber during experimental campaigns in 2015 and 2016 years. The examination ...
  • First tests of the biased movable B4C-limiter in the Uragan-2M torsatron under RF and UHF wall conditioning 
    Glazunov, G.P.; Baron, D.I.; Bondarenko, M.N.; Burchenko, P.Ya.; Chechkin, V.V.; Chernyshenko, V.Ya.; Grigor’eva, L.I.; Konovalov, V.G.; Konotopskiy, A.L.; Kotenko, V.G.; Lozin, A.V.; Maznichenko, S.M.; Moiseenko, V.E.; Pashnev, V.K.; Ponomarenko, N.P.; Solodovchenko, S.I.; Sorokovoy, Ye.L.; Shapoval, A.V.; Tereshin, V.I.; Voitsenya, V.S. (2010)
    The work describes the design of a multifunctional B4C-limiter, and reports preliminary results from experimental study of the limiter operated at steady-state and pulsed RF discharge cleaning regimes in the Uragan-2M torsatron.
  • Formation of ITB in the vicinity of rational surfaces in the Uragan-3M torsatron 
    Volkov, E.D.; Berezhnyj, V.L.; Bondarenko, V.N.; Chechkin, V.V.; Fomin, I.P.; Grigor’eva, L.I.; Konovalov, V.G.; Kotsubanov, V.D.; Kulaga, A.E.; Lapshin, V.I.; Lesnyakov, G.G.; Litvinov, A.P.; Lozin, A.V.; Mironov, Yu.K.; Moiseenko, V.E.; Nazarov, N.I.; Nikol’skij, I.K.; Ocheretenko, V.L.; Pavlichenko, O.S.; Pinos, I.B.; Podoba, Yu.Ya.; Romanov, V.S.; Shapoval, A.N.; Shcherbinina, T.E.; Skibenko, A.I.; Slavnyi, A.S.; Sorokovoy, E.L.; Tarasov, I.K.; Tsybenko, S.A.; Voitsenya, V.S. (Вопросы атомной науки и техники, 2003)
    It was shown that there is the possibility of ITB formation in the vicinity of rational surfaces in a torsatron magnetic configuration. The formation of ITB is accompanied by fast change of plasma poloidal rotation velocity, ...
  • Image quality as a possible method of in situ monitoring the in-vessel mirrors 
    Konovalov, V.G.; Makhov, M.N.; Shapoval, A.N.; Ashikawa, N.; Masuzaki, S.; Sagara, A.; Naidenkova, D.I.; Ryzhkov, I.V.; Shtan, A.F.; Solodovchenko, S.I.; Voitsenya, V.S. (Вопросы атомной науки и техники, 2006)
    The plasma facing mirrors (FM) in ITER will be subjected to sputtering and / or contamination with the rates depending on mirror locations. The result of influence of both these factors will be reduce of mirror reflectance ...
  • Investigation of radial distributions of spectral line radiation emissivities in torsatron "Uragan - 3M" 
    Bondarenko, V.N.; Konovalov, V.G.; Tsybenko, S.A.; Voitsenya, V.S.; Volkov, E.D. (Вопросы атомной науки и техники, 2003)
    The determination of the radial distributions of the radiation emissivity of the spectral lines relating to the working gas and impurities in the different ionization stages is an important object of the plasma spectroscopy ...
  • Modification of optical properties of tungsten exposed to low-energy, high flux deuterium plasma ions 
    Alimov, V.Kh.; Belyaeva, A.I.; Galuza, A.A.; Isobe, K.; Konovalov, V.G.; Savchenko, A.A.; Slatin, K.A.; Solodovchenko, S.I.; Voitsenya, V.S.; Yamanishi, T. (Вопросы атомной науки и техники, 2011)
    Anomalous change of optical properties of recrystallized W caused by exposure to D plasma ions at sample temperature of ~535 K was studied by ellipsometry and reflectometry. There is a qualitative difference between ...
  • Observation of plasma poloidal rotation in “Uragan-3M” torsatron from edge Hα fluctuation correlation studies 
    Konovalov, V.G.; Matsuoka, K.; Pavlichenko, O.S.; Shapoval, A.N.; Skibenko, A.I.; Suzuki, C. (Вопросы атомной науки и техники, 2002)
    Studies of plasma edge Ha emission fluctuations firstly proposed for CHS heliotron/torsatron have been performed for RF produced/heated plasma in “Uragan-3M” torsatron. Approach is based on a realistic assumption that Ha ...
  • On the issue of shielding properties of plasma in the outside separatrix region of U-3M 
    Konovalov, V.G.; Chechkin, V.V.; Ggrigor’eva, L.I.; Shapoval, A.N. (Вопросы атомной науки и техники, 2014)
    When providing experiments on RF plasma production and heating in U-3M torsatron there was observed sudden decrease (up to two times) of mean confined plasma density during step-rise of an RF antenna voltage. Trying to ...
  • Peculiarities of plasma fluctuations during RF heating in Uragan-3M torsatron by means of two alfven waves 
    Pavlichenko, O.S.; Skibenko, A.I.; Volkov, E.D.; Berezhniy, V.L.; Ocheretenko, V.L.; Konovalov, V.G.; Kulaga, A.Ye.; Litvinov, A.P.; Pinos, I.B.; Prokopenko, A.V.; Shapoval, A.N.; Shvets, O.M.; Tsybenko, S.A. (Вопросы атомной науки и техники, 2005)
    Three wave interaction has been observed in experiments on Uragan-3M torsatron. Two RF antennas with frequencies Ω1 and Ω2 were used simultaneously for plasma production and heating. Plasma was probed by microwaves, these ...
  • Radio-frequency plasma start-up at Uragan-3M stellarator 
    Moiseenko, V.E.; Lyssoivan, A.; Wauters, T.; Tripský, M.; Lozin, A.V.; Pavlichenko, R.O.; Kozulya, M.M.; Dreval, M.B.; Mironov, Yu.K.; Romanov, V.S.; Kulaga, A.Ye.; Zamanov, N.V.; Shapoval, A.N.; Konovalov, V.G.; Chechkin, V.V.; Grigor’eva, L.I.; Beletskii, A.A.; Kasilov, A.A.; Garkusha, I.E. (Вопросы атомной науки и техники, 2017)
    A double frame antenna with a broad spectrum of parallel wavenumbers (with respect to the magnetic field) is used for radio-frequency (RF) plasma production in Uragan-3M stellarator type device. The delay between the start ...
  • RF heating below ion-cyclotron frequencies in Uragan torsatrons 
    Moiseenko, V.E.; Dreval, M.B.; Burchenko, P.Ya.; Losin, A.V.; Berezhnyj, V.L.; Bondarenko, V.N.; Chechkin, V.V.; Grigor’eva, L.I.; Hartmann, D.; Koch, R.; Konovalov, V.G.; Kotsubanov, V.D.; Kramskoi, Ye.D.; Kulaga, A.E.; Lyssoivan, A.I.; Mironov, V.K.; Pavlichenko, R.O.; Romanov, V.S.; Shapoval, A.N.; Skibenko, A.I.; Slavnyi, A.S.; Tereshin, V.I.; Voitsenya, V.S. (2010)
    The experiments on Uragan-3M torsatron (stellarator) on Alfvén resonance heating are presented. Usage of the three-halfturn antenna provides plasma density increase and heating of the electron plasma component.
  • Simulating study of plasmachemical erosion of a-C:H films in a ECR discharge plasma 
    Konovalov, V.G.; Makhov, M.N.; Ryzhkov, I.V.; Shapoval, A.N.; Shtan’, A.F.; Skorik, O.A.; Solodovchenko, S.I.; Timoshenko, A.I.; Voitsenya, V.S. (Вопросы атомной науки и техники, 2011)
    The dynamics of interference figure of the reflection spectrum for stainless steel and copper mirrors with specially deposited carbon-containing film (ɚ-C:H) were studied when the film was gradually eroded under impact ...