Перегляд за автором "Shapoval, A.N."

Сортувати за: Порядок: Результатів:

  • Amplification of the runaway electrons flow in the Uragan-3М torsatron 
    Tarasov, I.K.; Tarasov, M.I.; Sitnikov, D.A.; Korovin, V.B.; Lozin, A.V.; Mironov, Yu.K.; Romanov, V.S.; Pavlichenko, R.O.; Zamanov, N.V.; Kulaga, A.G.; Shapoval, A.N.; Makhov, M.M.; Goncharov, I.G.; Listopad, V.M.; Lymar, N.V.; Gnidenko, N.V. (Вопросы атомной науки и техники, 2018)
    In this work the results of amplification of the runaway electrons flow and interaction runaway electrons with RF-heating wave on the Uragan-3M torsatron are presented. Results described in the article confirm using ...
  • 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 ...
  • Continuous wall conditioning VHF discharge without magnetic field in a toroidal device 
    Lozin, A.V.; Moiseenko, M.M.; Kozulya, M.M.; Kramskoj, E.D.; Korovin, V.B.; Yevsyukov, A.V.; Grigor’eva, L.I.; Beletskii, A.A.; Shapoval, A.N.; Makhov, M.M.; Krasyuk, A.Yu.; Baron, D.I. (Вопросы атомной науки и техники, 2016)
    Experiments were carried out at Uragan-2M torsaron for wall conditioning without magnetic field. Plasma discharge was created with the same antenna and VHF generator used for weak magnetic field (B0=100 G) wall conditioning. ...
  • Control of the runaway electron flow in torsatron 
    Moiseenko, V.E.; Tarasov, I.K.; Tarasov, M.I.; Sitnikov, D.A.; Korovin, V.B.; Komarov, A.D.; Kozachek, A.S.; Krupnik, L.I.; Zhezhera, A.I.; Pavlichenko, R.O.; Zamanov, N.V.; Kulaga, A.Ye.; Shapoval, A.N.; Lytova, M.A.; Maznichenko, S.M.; Solodovchenko, S.I.; Shtan', A.F. (Вопросы атомной науки и техники, 2014)
    The possibilities of stimulation and complete suppression of the runaway electrons flow in the experiments at Uragan-2M setup were investigated. The flow stimulation was carried out by producing additional free charged ...
  • Decreasing water concentration in the Uragan-3M device with UHF discharge 
    Kozulya, M.M.; Korovin, V.B.; Lozin, A.V.; Krasyuk, A.Yu.; Mironov, Yu.K.; Romanov, V.S.; Shtan, A.F.; Solodovchenko, S.I.; Baron, D.I.; Shapoval, A.N.; Chernyshenko, V.Ya.; Pashnev, V.K. (Вопросы атомной науки и техники, 2014)
    Uragan-3M device vacuum chamber is a cylinder with volume of 70 m³. Between the operation series, it is opened to the atmosphere for scientific and technical works. The problem of high water vapour concentration in the ...
  • Distribution of 0.2…4.5 keV plasma ions in set of U-2M discharges 
    Slavnyj, A.S.; Pavlichenko, R.O.; Shapoval, A.N.; Makhov, M.N.; Dreval, M.B. (Вопросы атомной науки и техники, 2021)
    Charge exchange (CX) neutral fluxes were measured by neutral particle analyzer (NPA) in plasma discharges sustained by the W7-X-like radio frequency (RF) antenna in the Uragan-2M (U-2M) stellarator. CX fluxes in pure ...
  • 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 ...
  • Electromagnetic oscillations at the edge of the Uragan-3M plasma 
    Pashnev, V.K.; Tarasov, I.K.; Tarasov, M.I.; Sitnikov, D.A.; Tsybenko, S.A.; Pinos, I.B.; Stepanov, K.N.; Olshansky, V.V.; Shvets, O.M.; Sorokovoy, E.L.; Petrushenya, A.A.; Lozin, A.V.; Pugovkin, A.P.; Mironov, Yu.K.; Shapoval, A.N. (Вопросы атомной науки и техники, 2013)
    In the Uragan-3M torsatron the plasma is ICRF heated with the use of antennas of different types. The objective of this work is to study the electromagnetic wave propagation outside the plasma confinement volume and the ...
  • 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 ...
  • Feasibility of creating an island divertor in the Uragan-2M torsatron 
    Lesnyakov, G.G.; Shapoval, A.N.; Pavlichenko, O.S. (Вопросы атомной науки и техники, 2012)
    The concept of an island divertor appears the only suitable idea that may be helpful to make up for the absence of a natural helical divertor in the magnetic configuration. In this context, the paper presents and discusses ...
  • 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 ...
  • 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 ...
  • Impact of long-term sputtering on mirror samples fabricated from different kind tungsten 
    Voitsenya, V.S.; Bardamid, A.F.; Konovalov, G.V.; Makhov, M.N.; Ryzhkov, I.V.; Shapoval, A.N.; Skoryk, O.O.; Solodovchenko, S.I.; Stan’, A.F.; Zhou Zhang-jian; Zhao Ming-yue (Вопросы атомной науки и техники, 2016)
    The results are presented on effects of long term sputtering of mirror-like samples made of pure tungsten and tungsten with dopants (Y, K-Al, La). The dynamics of surface relief and optical characteristics were ...
  • Influence of movable B₄C-limiter on characteristics of RF discharge plasma in the Uragan-2M torsatron 
    Glazunov, G.P.; Lozin, A.V.; Konotopskiy, A.L.; Baron, D.I.; Beletskii, A.A.; Bondarenko, M.N.; Chechkin, V.V.; Dreval, M.B.; Grigor’eva, L.I.; Kozulya, M.M.; Maznichenko, S.M.; Moiseenko, V.E.; Mironov, Yu.K.; Pavlichenko, R.O.; Romanov, V.S.; Shapoval, A.N. (Вопросы атомной науки и техники, 2019)
    A variant of the B₄C movable biased pumped limiter for the Uragan-2M torsatron is described. Some results of experiments with the limiter moved from the vacuum chamber wall to the central region of the plasma column in the ...
  • Influence of working gas pulse injection and fluctuations of the magnetic field on the runaway electrons dynamics in Uragan-3M 
    Tarasov, I.K.; Tarasov, M.I.; Sitnikov, D.A.; Korovin, V.B.; Lozin, A.V.; Shapoval, A.N.; Makhov, M.M.; Mironov, Yu.K.; Romanov, V.S.; Pavlichenko, R.O.; Zamanov, N.V.; Kulaga, A.G.; Goncharov, I.G.; Listopad, V.M.; Lymar, N.V.; Gnidenko, N.V. (Вопросы атомной науки и техники, 2019)
    Generation of runaway electrons in fusion experiments can drive to serious damage of plasma devices components. Injection of gas with a large mass number decreases the generation processes. Also, magnetic perturbations ...
  • Magnetic surfaces of stellarator-mirror hybrid in the Uragan-2М torsatron 
    Lesnyakov, G.G.; Shapoval, A.N.; Gubarev, S.P.; Zolototrubova, M.S.; Opaleva, G.P.; Makhov, M.N.; Kotenko, V.G.; Moiseenko, V.E.; Voitsenya, V.S. (Вопросы атомной науки и техники, 2013)
    This study was carried out in support of the possibility of a nuclear fusion neutron source based on the plasma trap with a stellarator-mirror hybrid magnetic system to control the subcritical, fast nuclear reactor. The ...
  • Microprocessor based hardware-software complex for investigating the magnetic surfaces of torsatron URAGAN-2M 
    Gubarev, S.P.; Lesnyakov, G.G.; Opaleva, G.P.; Shapoval, A.N.; Taran, V.S.; Zolototrubova, M.I. (Вопросы атомной науки и техники, 2012)
    This paper describes the microprocessor hardware and software complex designed to control the fluorescent rod scanning in the poloidal cross section of vacuum toroidal chamber in order to study the structure of magnetic ...
  • 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 ...