英国皇家物理学会期刊
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作者:L.I. Krupnik , L.G. Eliseev ...
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.I. Krupnik , A. Lopez-Fraguas ...
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.I. Krupnik , A.S. Kozachek ...
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.I. Krupnik , M. Liniers ...
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.I. Krupnik , M. Liniers ...
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.I. Krupnik , S.M. Khrebtov ...
来源:[J].Nuclear Fusion(IF 2.734), 2011, Vol.51 (8), pp.083043 (10pp)IOP
摘要:A direct comparison of the electric potential and its fluctuations in the T-10 tokamak and the TJ-II stellarator is presented for similar plasma conditions in the two machines, using the heavy ion beam probe diagnostic. We observed the following similarities: (i) plasma pote...
作者:L.I. Krupnik , S.V. Krylov ...
来源:[J].Nuclear Fusion(IF 2.734), 2011, Vol.51 (9), pp.094019 (14pp)IOP
摘要:Poloidal asymmetry and radial correlation lengths of turbulence were investigated in T-10 at low field side and high field side by correlation reflectometry. Correlation of plasma confinement with the turbulence type was observed. Improvements in heavy ion beam probe diagnos...
作者:L.I. Krupnik , S.M. Khrebtov ...
来源:[J].Nuclear Fusion(IF 2.734), 2013, Vol.53 (9)IOP
摘要:Plasma potential and turbulent particle flux Γ E × B in the plasma core were measured for the first time during L–H/H–L transitions in the TJ-II heliac using a heavy ion beam probe. The L–H transition is characterized by a simultaneous potential drop ∼...

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