Перегляд за автором "Kulaga, A.E."

Сортувати за: Порядок: Результатів:

  • A high speed 140 ghz microwave interferometer for density fluctuation measurements in Uragan-2M stellarator 
    Pavlichenko, R.O.; Zamanov, N.V.; Kulaga, A.E.; Uragan-2M team (Вопросы атомной науки и техники, 2018)
    The operation of the 2 mm microwave superheterodyne interferometer, which allows to measure the linear electron density (average over the line of sight through the plasma) at the Uragan-2M stellarator is presented. ...
  • Behavior of suprathermal electrons at the Uragan-3M torsatron after RF heating off 
    Zamanov, N.V.; Pavlichenko, R.O.; Kulaga, A.E. (Вопросы атомной науки и техники, 2016)
    For the past decades the microwave radiometry is a routinely used diagnostics to obtain the information on temporal evolution and radial profile of the bulk electron temperature at Uragan-3M torsatron plasma experiments ...
  • Behaviour features of the radiative losses of the torsatron U – 3M plasma 
    Kotsubanov, V.D.; Kulaga, A.E.; Nikolskij, I.K.; Pashnev, V.K.; Tsybenko, S.A. (Вопросы атомной науки и техники, 2006)
    The total bolometrically measured plasma radiation losses on the RF heating power were found. The results of measurements demonstrate a nonmonotonic dependence of radiation losses on RF power. Namely, at low RF power levels ...
  • Behaviour of the radiation of the suprathermal electrons at the Uragan-3M torsatron after RF heating off from ECE measurements 
    Zamanov, N.V.; Pavlichenko, R.O.; Kulaga, A.E.; Grigo’eva, L.I.; Chechkin, V.V.; Shapoval, A.N.; Makhov, M.M.; Mironov, Yu.K.; Romanov, V.S.; Tarasov, I.K.; Sitnikov, D.A.; Pavlichenko, O.S. (Вопросы атомной науки и техники, 2015)
    The microwave radiometry is a well-known diagnostics to obtain the information on temporal evolution and radial profile of the electron temperature at U-3M torsatron plasma experiments. However, under low plasma density ...
  • Creation of low density starting plasma with small frame antenna at Uragan-3M device 
    Kozulya, M.M.; Kramskoy, E.D.; Korovin, V.B.; Yevsyukov, A.V.; Lozin, A.V.; Kasilov, A.A.; Grigor’eva, L.I.; Kulaga, A.E.; Maznichenko, S.M.; Mironov, Yu.K.; Romanov, V.S.; Chechkin, V.V. (Вопросы атомной науки и техники, 2015)
    Deficient shot-to-shot stability of Uragan-3M discharges makes difficult to reproduce experimental results over the period of experimental session. An efficient way of reducing difference between shots is creation of initial ...
  • Excitation of plasma fluctuations near ion girofrequencies during RF plasma heating in Uragan-3M torsatron 
    Skibenko, A.I.; Pavlichenko, O.S.; Berezhnyj, V.L.; Burchenko, P.Ya.; Kulaga, A.E.; Ocheretenko, V.L.; Pinos, I.B.; Prokopenko, A.V.; Slavnyj, A.S.; Tarasov, I.K.; Volkova, O.Yu. (Вопросы атомной науки и техники, 2006)
    Curentless plasma in Uragan-3M (U-3M) is produced and heated by absorption of RF power in the region of Alfven waves (AW) [1]. The process of plasma heating was explained in [2] as a result of Cherenkov absorption of ...
  • First measurements of line electron density in Uragan-2M plasmas via 140 GHz heterodyne interferometer 
    Pavlichenko, R.O.; Zamanov, N.V.; Kulaga, A.E. (Вопросы атомной науки и техники, 2017)
    Commissioned a microwave 2 mm (140 GHz) superheterodyne interferometer, which allows to start the measurement of linear (average over the length of the chord passing through the plasma) of the electron density at the ...
  • 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 ...
  • 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, ...
  • Observation of 1…20 kHz fluctuations in the Uragan-2M torsatron 
    Dreval, M.B.; Pavlichenko, R.O.; Shapoval, A.M.; Ozherelyev, F.I.; Mironov, Yu.K.; Romanov, V.S.; Makhov, M.M.; Zamanov, N.V.; Kulaga, A.E. (Вопросы атомной науки и техники, 2016)
    First observations of plasma fluctuations in the frequency range of 1…20 kHz in various plasma conditions of the URAGAN-2M (U-2M) torsatron are presented. Observed fluctuations of the Hα emissivity are coherent with the ...
  • Peculiarities of the radiometric measurements on Uragan-3M torsatron for RF heated plasma 
    Pavlichenko, R.O.; Kulaga, A.E.; Zamanov, N.V.; Pavlichenko, O.S. (Вопросы атомной науки и техники, 2011)
    Frequency spectrum (radial profile) of X-mode second harmonic electron cyclotron emission was observed for optically thin plasma produced by Alfvén resonance heating in Uragan-3M torsatron. Radial electron temperature profile ...
  • Plasma parameters evolution during conditioning RF discharges in Uragan-2M torsatron 
    Skibenko, A.I.; Prokopenko, A.V.; Berezhnyj, V.L.; Burchenko, P.Ya.; Krasnyj, V.V.; Kulaga, A.E.; Lesnyakov, G.G.; Lozin, A.V.; Moiseenko, V.E.; Ocheretenko, V.L.; Pavlichenko, O.S.; Pinos, I.B.; Shapoval, A.N.; Shvets, O.M.; Tarasov, M.I.; Tereshin, V.I.; Tsybenko, S.A.; Zamanov, N.V. (Вопросы атомной науки и техники, 2009)
    The results of the plasma parameters optimization measured via two-chord interferometry, radiometry, and the registering of the Нα, CIII, OII lines intensity are discussed. The optimization was realized by variation of ...
  • Radial distributions of RF discharge plasma parameters and radial electric field in the Uragan-3M torsatron 
    Volkov, E.D.; Adamov, I.Yu.; Berezhnyj, V.L.; Kulaga, A.E.; Nazarov, N.I.; Ocheretenko, V.L.; Pinos, I.B.; Shcherbinina, T.E.; Skibenko, A.I.; Slavnyj, A.S.; Tarasov, I.K.; Fomin, I.P. (Вопросы атомной науки и техники, 2000)
    The results of local measurements of RF discharge plasma parameters (plasma density and its fluctuations, electron temperature and energy of superthermal electrons, plasma poloidal rotation velocity) in the Uragam-3M ...
  • 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.
  • Some features of the dynamics of suprathermal electrons after RF heating off at the Uragan-3M stellarator plasmas 
    Zamanov, N.V.; Pavlichenko, R.O.; Kulaga, A.E. (Вопросы атомной науки и техники, 2019)
    For the past decades the microwave radiometry is a routinely used as diagnostic tool to obtain the information on temporal evolution and radial profile of the electrons temperature at Uragan-3M torsatron plasma experiments. ...
  • Usage of three-halfturn antenna at the Uragan-3M device 
    Lozin, A.V.; Moiseenko, V.E.; Grigor’eva, L.I.; Kozulya, M.M.; Krasyuk, A.Yu.; Kulaga, A.E.; Kramskoy, E.D.; Lyssoivan, A.I.; Maznichenko, S.M.; Mironov, Yu.K.; Pavlichenko, R.O.; Zamanov, N.V.; Romanov, V.S.; Chernyshenko, V.Ya.; Chechkin, V.V. (Вопросы атомной науки и техники, 2013)
    Unshielded THT antenna is successfully used: (i) for heating of plasma prepared by the frame antenna pulse, (ii) for making an initial plasma with low density ~10¹⁰ cm⁻³ for further frame antenna operation, (iii) for ...