Перегляд за автором "Krupnik, L.I."

Сортувати за: Порядок: Результатів:

  • Investigations of thermo-ionic emitters of heavy alkali metals for diagnostic injector of “Uragan-2M” stellarator 
    Bondarenko, I.S.; Chmyga, A.A.; Deshko, G.N.; Komarov, A.D.; Kozachok, A.S.; Krupnik, L.I.; Khrebtov, S.M.; Taschev, Yu.I.; Zhezhera, A.I. (Вопросы атомной науки и техники, 2011)
    The results of solid-state thermo-ionic emitters of Cs⁺ and Tl⁺ ions investigations are presented. These emitters are planned to use in heavy ion beam diagnostic system for “Uragan-2M” stellarator. According to estimations ...
  • New capabilities of plasma potential and density measurements using a dual heavy ion beam probing (HIBP) diagnostic in the TJ-II stellarator 
    Zhezhera, A.I.; Chmyga, A.А.; Deshko, G.N.; Eliseev, L.G.; Hidalgo, C.; Komarov, A.D.; Kozachek, A.S.; Krupnik, L.I.; Melnikov, A.V.; de Pablos, J.L.; Perfilov, S.V. (Вопросы атомной науки и техники, 2017)
    The unique capabilities of the dual HIBP system allow the investigation of multi-scale mechanisms to be expanded from the plasma edge to the plasma core in the TJ-II stellarator. Experiments with combined NBI and ECRH ...
  • Plasma potential correlations between heavy ion beam probe and langmuir probe on the Т-10 tokamak 
    Zenin, V.N.; Drabinskij, M.A.; Eliseev, L.G.; Grashin, S.A.; Khabanov, P.O.; Kharchev, N.K.; Krupnik, L.I.; Melnikov, A.V. (Вопросы атомной науки и техники, 2018)
    This work is dedicated to simultaneous measurements of plasma potential oscillations at GAM frequencies in different locations on the T-10 tokamak and studying their correlation properties. Recent experiments with Heavy Ion ...
  • Plasma profiles, self-organization and alfven eigenmodes studies using the HIBP diagnostic in the TJ-II stellarator 
    Krupnik, L.I.; Barcala, J.M.; Cappa, A.; Chmyga, O.O.; Dreval, M.B.; Hidalgo, C.; Khrebtov, S.M.; Komarov, O.D.; Kozachok, O.S.; Martínez, J.; Molinero, A.; Pablos, J.L. (Problems of Atomic Science and Technology, 2023)
    This paper reports recent experiments in the TJ-II stellarator using a dual Heavy Ion Beam probe diagnostic. The studies were focused on characterizing plasma potential profiles, investigating self-organization mechanisms ...
  • Recent measurements of the electric potential profile and fluctuations in ECRH and NBI plasmas on TJ-II stellarator 
    Krupnik, L.I.; Melnikov, A.V.; Hidalgo, C.; Eliseev, L.G.; Chmyga, A.A.; Komarov, A.D.; Kozachok, A.S.; Perfilov, S.V.; Lysenko, L.G.; Zhezhera, A.I.; Pedrosa, M.A.; de Pablos, J.L. (Вопросы атомной науки и техники, 2009)
    Heavy Ion Beam Probe diagnostics is used in TJ-II stellarator to study directly the plasma electric potential with a good spatial (up to 1cm) and temporal (up to 2 µs ) resolution. Low density (ne = (0.3…0.5)×1019 m –3) ...
  • Role of radial electric field in LH transition triggered by counter-NBI at low plasma Density in the TUMAN-3M tokamak 
    Tukachinsky, A.S.; Askinazi, L.G.; Chernyshev, F.V.; Golant, V.E.; Irzak, M.A.; Kornev, V.A.; Krikunov, S.V.; Krupnik, L.I.; Lebedev, S.V.; Melnik, A.D.; Razumenko, D.V.; Rozhdestvensky, V.V.; Rushkevic, A.A.; Smirnov, A.I.; Vild’junas, M.I.; Zhubr, N.A. (Вопросы атомной науки и техники, 2008)
    Threshold power needed to attain H-mode in a tokamak is a critical parameter for designing of future devices and in particular fusion reactor ITER [1]. According to commonly accepted scaling [2] the threshold power Pthr ...
  • Role of turbulence and electric fields in the establishment of improved confinement in tokamak plasmas 
    Van Oost, G.; Bulanin, V.V.; Donné, A.J.H.; Gusakov, E.Z.; Krämer-Flecken, A.; Krupnik, L.I.; Melnikov, A.; Peleman, P.; Razumova, K.A.; Stöckel, J.; Vershkov, V.; Altukov, A.B.; Andreev, V.F.; Askinazi, L.G.; Bondarenko, I.S.; Dnestrovskij, A.Yu.; Eliseev, L.G.; Esipov, L.A.; Grashin, S.A.; Gurchenko, A.D.; Hogeweij, G.M.D.; Jachmich, S.; Khrebtov, S.M.; Kouprienko, D.V.; Lysenko, S.E.; Perfilov, S.V.; Petrov, A.V.; Popov, A.Yu.; Reiser, D.; Soldatov, S.; Stepanov, A.Yu.; Telesca, G.; Urazbaev, A.O.; Verdoolaege, G.; Zimmermann, O. (Вопросы атомной науки и техники, 2006)
    An extensive (INTAS) research programme started in 2002 to investigate the correlations between on the one hand the occurrence of transport barriers and improved confinement in the medium-size tokamaks TEXTOR and T-10 and ...
  • Study of gams and related turbulent particle flux with hibp in the T-10 tokamak 
    Eliseev, L.G.; Lysenko, S.E.; Melnikov, A.V.; Krupnik, L.I.; Kozachek, A.S.; Zenin, V.N. (Вопросы атомной науки и техники, 2017)
    The new findings in the behavior of geodesic acoustic modes (GAMs) and turbulent particle flux dynamics on the T-10 tokamak are presented. For the first time in T-10 the broadband oscillations (<250 kHz) of electric potential ...
  • Study of plasma potential, its fluctuations and turbulence rotation in the T-10 tokamak 
    Melnikov, A.V.; Vershkov, V.A.; Grashin, S.A.; Eliseev, L.G.; Lysenko, S.E.; Mavrin, V.A.; Merezhkin, V.G.; Perfilov, S.V.; Shelukhin, D.A.; Shurygin, R.V.; Krupnik, L.I.; Komarov, A.D.; Kozachek, A.S.; Zhezhera, A.I. (2010)
    Plasma potential, its oscillations and turbulence rotation were studied on T-10 in a wide range of ohmic and ECRH regimes. The potential has negative sign over the whole plasma cross section. Broadband turbulence tends to ...
  • Study of poloidal structure of geodesic acoustic modes in the T-10 tokamak with heavy ion beam probing 
    Zenin, V.N.; Eliseev, L.G.; Kozachek, A.S.; Krupnik, L.I.; Lysenko, S.E.; Melnikov, A.V.; Perfilov, S.V. (Вопросы атомной науки и техники, 2014)
    The poloidal structure of geodesic acoustic modes (GAMs) was studied on the T-10 tokamak by heavy ion beam probing with multichannel energy analyzer. GAMs were mainly pronounced on the plasma electric potential. The poloidal ...
  • The development of light ion injector for the plasma diagnostic system based on beam emission spectroscopy 
    Chmyga, A.A.; Deshko, G.N.; Komarov, A.D.; Kozachek, A.S.; Krupnik, L.I.; Khrebtov, S.M.; Tashchev, Yu.I.; Zhezhera, A.I. (Вопросы атомной науки и техники, 2012)
    The development of light ion injector and neutralizer for the BES plasma diagnostic system and its first experimental results are presented in this work. This injector will be used for neutral beam plasma diagnostic systems. ...
  • The first operation of the heavy ion beam probing diagnostic (HIBP) on the Uragan-2M torsatron 
    Zhezhera, A.I.; Chmyga, A.A.; Deshko, G.N.; Krupnik, L.I.; Kozachek, A.S.; Komarov, A.D.; Khrebtov, S.M.; Maznichenko, S.M.; Tashchev, Yu.I.; Lesnyakov, G.G.; Tarasov, I.K.; Perfilov, S.V. (Вопросы атомной науки и техники, 2015)
    The Heavy Ion Beam Probing (HIBP) diagnostic system has been installed and operates now on the Uragan-2M torsatron for the first time in Ukraine. The cesium ion beam with energy range of 17…120 keV and ion current of 10…150 ...
  • The study of the radial location of quasi-coherent modes by heavy ion beam probe in the TJ-II stellarator 
    Khabanov, Ph.O.; Eliseev, L.G.; Khartchev, N.K.; Hidalgo, C.; Kozachek, A.S.; Krupnik, L.I.; Lysenko, S.E.; Melnikov, A.V.; Chmyga, A.A.; Deshko, G.N.; Khrebtov, S.M.; Komarov, A.D.; Molinero, A.; J.L. de Pablos; TJ-II team (Вопросы атомной науки и техники, 2018)
    Recent experiments in low magnetic shear flexible heliac TJ-II have shown that steady frequency and chirping Alfvén Eigenmodes take place with 100 kHz< fAE <300 kHz at both pure NBI and combined ECR and NBI heated ...