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Перегляд Вопросы атомной науки и техники, 2016, № 6 за датою випуску

Репозиторій DSpace/Manakin

Перегляд Вопросы атомной науки и техники, 2016, № 6 за датою випуску

Сортувати за: Порядок: Результатів:

  • 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 ...
  • Buildup of plasma oscillations during modeling the electromagnetic wave propagation 
    Pavlenko, I.V.; Melnyk, D.A.; Nakonechnyi, M.A.; Girka, I.A. (Вопросы атомной науки и техники, 2016)
    A plane wave formation in plasmas is studied numerically by Finite Difference Time Domain (FDTD) solver. The electromagnetic wave is incident normally to the plane boundary between vacuum and isotropic homogeneous plasma. ...
  • ICRF - volume charge - antenna edge interactions in the torsatrons U-3M and U-2M Part 1. Formation of a volume space charge (VSC) of positive ions 
    Berezhnyj, V.L. (Вопросы атомной науки и техники, 2016)
    A feature of fusion plasma rf discharges is the formation of near-wall volume-space charges (VSC) of positive ions. Nonlinear properties of VSC layers exert a determining influence on the rf discharge characteristics. The ...
  • ICRF - volume charge - antenna edge interactions in the torsatrons U-3M and U-2M Part 2. VSC - RF antenna interaction 
    Berezhnyj, V.L. (Вопросы атомной науки и техники, 2016)
    The influence of the electron emission and metal impurity emission from the antennas, including the U-3 torsatron antenna, on the RF-discharge has been analyzed. The both effects are the results of the antenna surface bombarding ...
  • Edge magnetic island excitation in the U-2M torsatron 
    Kotenko, V.G.; Moiseenko, V.E. (Вопросы атомной науки и техники, 2016)
    In the article, via numerical calculations a possibility of magnetic island structure excitation on the edge of closed magnetic surface configuration in a torsatron with the additional toroidal magnetic field coils is ...
  • Oscillatory and wave activity in the runaway electrons flow 
    Tarasov, I.K.; Tarasov, M.I.; Sitnikov, D.A.; Olshansky, V.V.; Lystopad, V.M.; Lymar, N.V.; Gnidenko, M.V. (Вопросы атомной науки и техники, 2016)
    The presence of the accelerated particles flow (the flow of runaway electrons) in the plasma confinement volume may case a number of different instabilities. In this work we investigate the spectrum of fluctuations in a ...
  • Behavior dynamics of low-frequency MHD-fluctuations and main plasma parameters in U-3M torsatron in RF-heating mode 
    Pashnev, V.K.; Sorokovoy, E.L.; Petrushenya, A.A.; Ozherel’ev, F.I.; Baron, D.I. (Вопросы атомной науки и техники, 2016)
    A significant decrease in the intensity of low-frequency MHD-activity is accompanied by sharp increase of plasma energy content in U-3M torsatron. Plasma is generated and heated by RF-fields with frequency of w = 0.8w(ci) ...
  • Lower hybrid resonance: field structure and numerical modeling 
    Moiseenko, V.E.; Wauters, T.; Lyssoivan, A. (Вопросы атомной науки и техники, 2016)
    The behavior the electromagnetic fields in the vicinity of the lower hybrid resonance point is studied in case of 1D plasma non-uniformity. The first of two found solutions of Maxwell’s equations is singular and describes ...
  • Calculation of the magnetic surfaces of the Uragan-2M torsatron with zero current in a single toroidal magnetic field coil 
    Nemov, V.V.; Kalyuzhnyj, V.N.; Lesnyakov, G.G.; Kozulya, M.M. (Вопросы атомной науки и техники, 2016)
    Possibility of existence of closed magnetic surfaces in the Uragan-2M torsatron is analysed in case of zero current in one coil of the set of the toroidal field coils. An influence of the current-feeds and detachable ...
  • Main results of the first experimental campaign in the stellarator W7-X 
    Marushchenko, N.B.; Dinklage, A.; Alonso, A.; Baldzuhn, J.; Beidler, C.D.; Biedermann, C.; Blackwell, B.; Bozhenkov, S.; Brakel, B.; Buttenschön, B.; Feng, Y.; Fuchert, G.; Hirsch, M.; Hoefel, U.; Knauer, J.; Krämer-Flecken, A.; Langenberg, A.; Laqua, H.P.; Maassberg, H.; Pablant, N.A.; Pasch, E.; Rahbarnia, K.; Rudischhauser, L.; Stephey, L.; Geiger, J.; Landreman, M.; Stange, T.; Trimino-Mora, H.; Turkin, Yu.; Velasco, J.-L.; Wurden, G.; Zhang, D.; Andreeva, T.; Beurskens, M.; Blanco, E.; Bosch, H.-S.; Burhenn, R.; Cappa, A.; Czarnecka, A.; Dostal, M.; Drews, P.; Endler, M.; Estrada, T.; Fornal, T.; Grulke, O.; Hartmann, D.; Harris, J.H.; Helander, P.; Jakubowski, M.; Klinger, T.; Klose, S.; Kocsis, G.; König, R.; Kornejew, P.; Krawczyk, N.; Krychowiak, M.; Kubkowska, M.; Kiazek, I.; Lazerson, S.; Liang, Y.; Liu, S.; Marchuk, O.; Marsen, S.; Moncada, V.; Moseev, D.; Naujoks, D.; Niemann, H.; Otte, M.; Pedersen, T.S.; Pisano, F.; Riße, K.; Rummel, T.; Schmitz, O.; Satake, S.; Smith, H.; Schröder, T.; Szepesi, T.; Thomsen, H.; Traverso, P.; Tsuchiya, M.; Wang, N.; Wauters, T.; Weir, G.; Wolf, R.; Yokoyama, M. (Вопросы атомной науки и техники, 2016)
    A summary of the first operational phase (OP1.1) at the stellarator W7-X is given. The operational setup of heating and diagnostics as well the results of experiments are briefly described. Plasma parameters and confinement ...
  • Features of active power definition in high-current pulsed discharge 
    Hrechko, Ya.O; Azarenkov, N.A.; Babenko, Ie.V.; Ryabchikov, D.L.; Sereda, I.N.; Shovkun, M.A.; Tseluyko, A.F. (Вопросы атомной науки и техники, 2016)
    The calculation method of active power dynamics in high-current plasma diode has been presented in this paper. The main features that should be considered in the calculations have been identified. It is shown that it is ...
  • Сyclotron wave absorption in D-shaped tokamaks 
    Grishanov, N.I.; Azarenkov, N.A. (Вопросы атомной науки и техники, 2016)
    Transverse dielectric susceptibility elements are derived for radio-frequency waves in a large aspect ratio toroidal plasma with D-shaped magnetic surfaces by solving the Vlasov equation for untrapped and usual t-trapped ...
  • Erosion features of tungsten surfaces under combined steady-state and transient plasma loads 
    Herashchenko, S.S.; Makhlaj, V.A.; Girka, O.I.; Aksenov, N.N.; Bizyukov, I.A.; Malykhin, S.V.; Surovitskiy, S.V.; Sereda, K.N.; Bizyukov, A.A. (Вопросы атомной науки и техники, 2016)
    The paper presents the experimental research on damage of the tungsten surfaces under combined plasma exposures. Steady-state hydrogen exposures (particle flux of 2×10²² m⁻²s⁻¹ , heat flux of 1.7 MW/m² , fluence of 1026 ...
  • Radio-frequency wall conditioning for steady-state stellarators 
    Kulyk, Yu.S.; Moiseenko, V.Е.; Wauters, T.; Lyssoivan, A. (Вопросы атомной науки и техники, 2016)
    Results of numerical modelling of a pulsed discharge used for wall conditioning and sustained by excitation of slow waves at frequencies below the ion cyclotron are presented. The analysis carried out with usage of a ...
  • 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. ...
  • 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 ...
  • Sequential implantations of deuterium and helium ions into tungsten-coated composite structures 
    Azarenkov, N.A.; Bobkov, V.V.; Tishchenko, L.P.; Starovoitov, R.I.; Kovtunenko, Yu.I.; Logachev, Yu.E.; Gamayunova, L.A. (Вопросы атомной науки и техники, 2016)
    The trapping and thermal desorption of deuterium and helium implanted into tungsten-coated composite structures were studied. The amount of accumulated deuterium and helium, and the shape of thermal desorption spectra were ...
  • Subensemble concept in 2D magnetized particle transport model 
    Zasenko, V.I.; Cherniak, O.M.; Zagorodny, A.G. (Вопросы атомной науки и техники, 2016)
    Transport of magnetized particle undergoing random frozen isotropic electrostatic field is considered. Because of infinitely long field correlation time and particle trapping this problem is of particular interest as a ...
  • Direct parallel Poisson solver with the multiply grid spacing support for plasma simulation via PIC method 
    Dadyka, D.I.; Anisimov, I.O. (Вопросы атомной науки и техники, 2016)
    Problem of the plasma simulation area decomposition for Poisson equation solution via PIC method using parallel computing is treated. Modification of the existing method moving to reduction of the computational complexity ...
  • Transport and plasma control in the Tj-Ii stellarator 
    Castejón, F. (Вопросы атомной науки и техники, 2016)
    This paper shows the effect of 3D geometry on transport and plasma control in the TJ-II stellarator. The fuelling and impurity transport are affected due to the enhancement of neoclassical (NC) transport and subsequent ...

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