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作者:L.G. Eliseev , C. Hidalgo ...
来源:[J].Nuclear Fusion(IF 2.734), 2014, Vol.54 (12)IOP
摘要:Excitation of modes in the Alfvénic frequency range, 30 kHz < f AE < 300 kHz, was observed in hydrogen plasma heated by hydrogen neutral beam injection (NBI) in the TJ-II heliac. Co-field and counter-field NBI were injected, and the components of the poloidal magn...
作者:L.G. Eliseev , S.V. Perfilov ...
来源:[J].Nuclear Fusion(IF 2.734), 2015, Vol.55 (6)IOP
摘要:Zonal flows and their high-frequency counterpart, the geodesic acoustic modes (GAMs) are considered as a possible mechanism of the plasma turbulence self-regulation. In the T-10 tokamak GAMs have been studied by the heavy ion beam probing and multipin Langmuir probes. The wi...
作者:L.G. Eliseev , S.G. Maltsev ...
来源:[J].Nuclear Fusion(IF 2.734), 2015, Vol.55 (6)IOP
摘要:This article provides new insight into previous and new experimental data regarding behaviour of small-scale density fluctuations in T-10 ohmic and electron cyclotron resonance heated (ECRH) discharges. The experiments demonstrate the existence of certain peaked–‘margin...
作者:L.G. Eliseev , E. Ascasíbar ...
来源:[J].Nuclear Fusion(IF 2.734), 2016, Vol.56 (7)IOP
摘要:Beam-driven Alfvén eigenmodes (AEs) have been studied in the TJ-II low-magnetic-shear flexible heliac ( B 0 = 0.95 T, 〈 R 〉 = 1.5 m, 〈 a 〉 = 0.22 m), in L-mode hydrogen plasmas with hydrogen NBI and ECR heating ( P NBI ⩽ 1.0 MW, E NBI...
作者:L.G. Eliseev , F. Castejón ...
来源:[J].Nuclear Fusion(IF 2.734), 2016, Vol.56 (11)IOP
摘要:Alfvén eigenmodes (AEs) were studied in low magnetic shear flexible heliac TJ-II ( B 0 = 0.95 T, R 0 = 1.5 m, = 0.22 m) neutral beam injection (NBI) heated plasmas ( P NBI ⩽ 1.1 MW, E NBI = 32 keV) using the heavy ion beam probe (H...
作者:L.G. Eliseev , J.M. Barcala ...
来源:[J].Nuclear Fusion(IF 2.734), 2017, Vol.57 (7)IOP
摘要:Heavy ion beam probing (HIBP) is a unique diagnostics to study the core plasma potential and turbulence. Advanced HIBPs operate in the T-10 tokamak and TJ-II flexible heliac with fine focused (<1 cm) and intense (100 µ A) beams. They provide measurements in the wide density ...
作者:L.G. Eliseev , S.E. Lysenko ...
来源:[J].Nuclear Fusion(IF 2.734), 2017, Vol.57 (11)IOP
摘要:New findings in study of geodesic acoustic modes (GAMs) on the T-10 tokamak since the last IAEA FEC 2014 are described. The broadband fluctuations of potential φ and electron density n e in Ohmic and ECRH regimes are analyzed with Heavy Ion Beam Probing along with...
作者:L.G. Eliseev , P. Hacek ...
来源:[J].Nuclear Fusion(IF 2.734), 2017, Vol.57 (12)IOP
摘要:Axisymmetric geodesic acoustic mode (GAM) oscillations of the magnetic field, plasma potential and electron temperature have been identified on the COMPASS tokamak. This work brings an overview of their electromagnetic properties studied by multi-pin reciprocating probes and...
作者:L.G. Eliseev , S.V. Perfilov
来源:[J].Nuclear Fusion(IF 2.734), 2011, Vol.51 (1), pp.013005 (8pp)IOP
摘要:A new phenomenon at the TJ-II stellarator is reported. The line-integrated density measured by a microwave interferometer systematically shows bursts of fluctuations at regularly spaced values of the mean density across a very large number of discharges. Related modes are also ob...
作者:L.G. Eliseev , A.Ya. Kislov ...
来源:[J].Nuclear Fusion(IF 2.734), 2011, Vol.51 (8), pp.083024 (9pp)IOP
摘要:Analysis of a wide range of experimental results in plasma magnetic confinement investigations shows that in most cases, plasmas are self-organized. In the tokamak case, it is realized in the self-consistent pressure profile, which permits the tokamak plasma to be macroscopically...

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