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作者:C. Bourdelle , C.F. Maggi ...
来源:[J].Nuclear Fusion(IF 2.734), 2014, Vol.54 (2)IOP
摘要:In this paper, the nature of the primary instability present in the pedestal forming region prior to the transition into H mode is analysed using a gyrokinetic code on JET-ILW profiles. The linear analysis shows that the primary instability is of resistive nature, and can th...
作者:C. Bourdelle , J.F. Artaud ...
来源:[J].Nuclear Fusion(IF 2.734), 2015, Vol.55 (6)IOP
摘要:With WEST (Tungsten Environment in Steady State Tokamak) (Bucalossi et al 2014 Fusion Eng. Des. 89 907–12 ), the Tore Supra facility and team expertise (Dumont et al 2014 Plasma Phys. Control. Fusion 56 075020 ) is used to pave the way towards ITER divertor procurement and o...
作者:C. Bourdelle , L. Chôné ...
来源:[J].Nuclear Fusion(IF 2.734), 2015, Vol.55 (7)IOP
摘要:The L to H mode transition occurs at a critical power which depends on various parameters, such as the magnetic field, the density, etc. Experimental evidence on various tokamaks (JET, ASDEX-Upgrade, DIII-D, Alcator C-Mod) points towards the existence of a critical temperature ch...
作者:C. Bourdelle , Y. Camenen ...
来源:[J].Nuclear Fusion(IF 2.734), 2018, Vol.58 (7)IOP
摘要:In ion-temperature-gradient (ITG) driven turbulence, the resonance condition leads to ion particle turbulent transport coefficients significantly larger than electron particle turbulent transport coefficients. This is shown in nonlinear gyrokinetic simulations and explained by an...
作者:C. Bourdelle , V. Bobkov ...
来源:[J].Nuclear Fusion(IF 2.734), 2014, Vol.54 (2)IOP
摘要:A comparison of the L–H power threshold ( P thr) in JET with all carbon, JET-C, and beryllium/tungsten wall (the ITER-like choice), JET-ILW, has been carried out in experiments with slow input power ramps and matched plasma shapes, divertor configuration and I ...
作者:C. Bourdelle , R. Dumont ...
来源:[J].Nuclear Fusion(IF 2.734), 2014, Vol.54 (2)IOP
摘要:Recent experimental observations at JET show evidence of reduced ion temperature profile stiffness. An extensive set of nonlinear gyrokinetic simulations are performed based on the experimental discharges, investigating the physical mechanism behind the observations. The imp...
作者:C. Bourdelle , S. Brezinsek ...
来源:[J].Nuclear Fusion(IF 2.734), 2014, Vol.54 (4)IOP
摘要:Type I ELMy H-mode operation in JET with the ITER-like Be/W wall (JET-ILW) generally occurs at lower pedestal pressures compared to those with the full carbon wall (JET-C). The pedestal density is similar but the pedestal temperature where type I ELMs occur is reduced and be...
作者:C. Bourdelle , X. Garbet ...
来源:[J].Nuclear Fusion(IF 2.734), 2014, Vol.54 (7)IOP
摘要:This paper reports on a Tore Supra experiment consisting in modifying locally the normalized electron temperature gradient R ∇ T e/ T e by playing with the electron cyclotron heating wave power deposition radius. Trace nickel was injected by the laser b...
作者:C. Bourdelle , M.J. Pueschel ...
来源:[J].Nuclear Fusion(IF 2.734), 2014, Vol.54 (12)IOP
摘要:The core micro-instability characteristics of hybrid and baseline plasmas in a selected set of JET plasmas with carbon wall are investigated through local linear and non-linear and global linear gyro-kinetic simulations with the GYRO code (Candy and Belli 2011 General Atomic...
作者:C. Bourdelle , G. Hornung ...
来源:[J].Nuclear Fusion(IF 2.734), 2014, Vol.54 (12)IOP
摘要:This letter reports on quasi-coherent (QC) modes observed in fluctuation spectra from Tore Supra and TEXTOR reflectometers. QC modes have characteristics in between coherent and broad-band fluctuations as they oscillate around a given frequency but have a wide spectrum. They...

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