Перегляд за автором "Sitnikov, D.A."

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 ...
  • 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 ...
  • Development of the system for multichannel microwave plasma probing in the torsatron U-2M 
    Berezhnyj, V.L.; Ocheretenko, V.L.; Pinos, I.B.; Skibenko, A.I.; Prokopenko, A.V.; Larin, Yu.V.; Maznichenko, S.M.; Sitnikov, D.A.; Tarasov, M.I. (Вопросы атомной науки и техники, 2009)
    To study successfully the conditions for production and heating of the plasma, its dynamics in the process of an RF discharge in the torsatron U-2M, a multichannel system for microwave diagnostics is suggested. To obtain ...
  • Dynamics of plasma poloidal rotation in the U-3M torsatron 
    Sitnikov, D.A.; Skibenko, A.I.; Tarasov, M.I.; Tarasov, I.K.; Pashnev, V.K.; Prokopenko, A.V. (Вопросы атомной науки и техники, 2011)
    Results of experimental study of plasma rotation dynamics in the U-3M torsatron during transition to the improved confinement mode are presented. The rotation velocity is measured using the Doppler reflectometry methods.
  • 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 ...
  • Energy confinement in the torsatron Uragan-3M during the RF-heating mode 
    Pashnev, V.K.; Burchenko, P.Ya.; Lozin, A.V.; Kotsubanov, V.D.; Kulaga, A.Ye.; Krasnyj, V.V.; Mironov, Yu.K.; Nikol’skii, I.K.; Petrushenya, A.A.; Romanov, V.S.; Sitnikov, D.A.; Sorokovoy, Ed.L.; Tsybenko, S.A.; Zamanov, N.V. (Вопросы атомной науки и техники, 2008)
    Energy confinement time of plasma in torsatron U-3M was measured both during quasi-stationary stady of RF-discharge and after RF-power cut-off. Power absorbed by plasma in the confinement region was estimated. A mechanism ...
  • High-frequency generation during the electron flow deceleration and reflection by the electrostatic potential 
    Tarasov, M.I.; Pashchenko, A.V.; Sitnikov, D.A.; Romanov, S.S.; Shapoval, I.M. (Вопросы атомной науки и техники, 2013)
    In this work we present the results of experimental study of generation of the RF-oscillations in a classic flat triode configuration for both presence and absence of the reflected particles flow. The amplitude and frequency ...
  • High-frequency properties of the electron flow slowing down in a planar diode 
    Pashchenko, A.V.; Melezhik, O.G.; Romanov, S.S.; Sitnikov, D.A.; Tarasov, I.K.; Tarasov, M.I.; Shapoval, I.M.; Novikov, V.E; Yatsyshin, V.A. (Вопросы атомной науки и техники, 2011)
    The instability of the electron flow injected into a planar diode and slowed down in it under the action of the external electric field is investigated through the exact solution of the set of inhomogeneous hydrodynamic ...
  • Influence of plasma with finite pressure on magnetic configuration of torsatron U-3M 
    Pashnev, V.K.; Burchenko, P.Ya.; Kulaga, A.Ye.; Lozin, A.V.; Mironov, Yu.K.; Petrushenya, A.A.; Romanov, V.S.; Sitnikov, D.A.; Sorokovoy, Ed.L.; Tsybenko, S.A.; Zamanov, N.V. (Вопросы атомной науки и техники, 2009)
    Series of experiments on generation of mode with high β (up to about 1.3%) in torsatron U-3M were performed using nitrogen as working gas. The dependence of average β from input power was obtained. The average plasma ...
  • 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 ...
  • Microwave diagnostic system of the Uragan-2М torsatron 
    Sitnikov, D.A.; Berezhnyj, V.L.; Larin, Y.V.; Maznichenko, S.M.; Ocheretenko, V.L.; Pinos, I.B.; Prokopenko, A.V.; Skibenko, A.I.; Tarasov, M.I. (Вопросы атомной науки и техники, 2008)
    The construction of microwave sections together with results of loss calculation in the microwave lines for different frequencies are presented. The construction of microwave lead-ins is also described. The whole system ...
  • 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 ...
  • Penning traps for confinement and cooling of charged particles 
    Tarasov, I.K.; Tarasov, M.I.; Sitnikov, D.A.; Lytova, M.A.; Lystopad, V.M.; Lymar, N.V. (Вопросы атомной науки и техники, 2015)
    The parameters of confinement of trapped charged particles are compared for self-consistent electromagnetic traps and for traditional and electromagnetic traps. The possibilities to control the trapped particles dynamics ...
  • Study of wave processes at the initial stage of RF-heating in the Uragan-3M torsatron 
    Pashnev, V.K.; Tarasov, I.K.; Sitnikov, D.A.; Sorokovoy, E.L.; Tsybenko, S.A.; Chechkin, V.V.; Grigor’eva, L.I.; Beletskii, A.A.; Kasilov, A.A. (Вопросы атомной науки и техники, 2017)
    The study of wave processes occurring during the initial stage of RF plasma heating in the Uragan-3M torsatron was performed with using movable magnetic and electric probes. The heating was carried out by the frame antenna. ...
  • The broadening of spectrum of oscillations excited by active antenna array 
    Tarasov, M.I.; Sitnikov, D.A.; Tkachenko, V.I.; Lystopad, V.M.; Lymar, N.V. (Вопросы атомной науки и техники, 2013)
    The plasma was heated by two active antenna arrays. The noise generator based on the nonlinear feedback scheme was used as a master oscillator. Similar measurements were made with the pulse generators used as master ...
  • The dynamics of 3D diocotron wave during the “hot“ electron flow propagation in the drift space 
    Tarasov, M.I.; Tarasov, I.K.; Sitnikov, D.A. (Вопросы атомной науки и техники, 2012)
    The longitudinal dynamic effect on the diocotron wave evolution was clarified. The main features of the plasma particles trapping and confining during the ‘hot’ electron beam propagation through the space of drift were studied.
  • The dynamics of inductively accelerated electrons in the U-3M torsatron 
    Tarasov, M.I.; Tarasov, I.K.; Sitnikov, D.A.; Pashnev, V.K.; Goncharov, I.G.; Listopad, V.M.; Lymar, N.V.; Shtan’, A.F.; Solodovchenko, S.I. (Вопросы атомной науки и техники, 2012)
    Additional experimental data for the runaway electrons flow in the Uragan-3M torsatron were obtained. In particular the synchrotron and ultrahigh frequency radiation were measured. Also the flow current dynamics was studied ...
  • The parametric excitation of ion Bernstein modes at the ICR plasma heating in the U-3M torsatron 
    Olshansky, V.V.; Stepanov, K.N.; Tarasov, I.K.; Tarasov, M.I.; Sitnikov, D.A.; Skibenko, A.I.; Volkov, E.D. (Вопросы атомной науки и техники, 2009)
    The results of theoretical and experimental investigations of oscillatory and wave processes at the stellarator plasma edge are presented. Experimental results were interpreted using the kinetic theory of the electron-ion ...
  • The problem of plasma density increasing in the U-3M torsatron after RF heating termination 
    Pashnev, V.K.; Tarasov, I.K.; Sitnikov, D.A.; Bondarenko, V.N.; Chechkin, V.V.; Shapoval, A.N.; Pavlichenko, R.O.; Tarasov, M.I.; Sorokovoy, E.L.; Petrushenya, A.A.; Skibenko, A.I.; Karpuhin, L.L.; Lozin, A.V. (Вопросы атомной науки и техники, 2013)
    In the U-3M torsatron a significant chord-averaged plasma density increase is observed after the RF-heating termination. The objective of this work is to find out possible mechanisms resulting in plasma density increasing.