英国物理学会
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作者:C.F. Maggi , E. Delabie ...
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.F. Maggi , S. Saarelma ...
来源:[J].Nuclear Fusion(IF 2.734), 2015, Vol.55 (11)IOP
摘要:New experiments in 2013–2014 have investigated the physics responsible for the decrease in H-mode pedestal confinement observed in the initial phase of JET-ILW operation (2012 Experimental Campaigns). The effects of plasma triangularity, global beta and neutrals on pedestal ...
作者:C.F. Maggi , L. Frassinetti ...
来源:[J].Nuclear Fusion(IF 2.734), 2017, Vol.57 (11)IOP
摘要:The pedestal structure of type I ELMy H-modes has been analysed for JET with the ITER-like Wall (JET-ILW). The electron pressure pedestal width is independent of ρ * and increases proportionally to √ β pol,PED. Additional broadening of the width is obse...
作者:C.F. Maggi , H. Weisen ...
来源:[J].Nuclear Fusion(IF 2.734), 2019, Vol.59 (7)IOP
摘要:NBI-heated L-mode plasmas have been obtained in JET with the Be/W ITER-like wall (JET-ILW) in H and D, with matched profiles of the dimensionless plasma parameters, ρ *, ν *, β and q in the plasma core confinement region and same T i/ T e and Z eff...
作者:C.F. Maggi , L. Chôné ...
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.F. Maggi , J. Mlynar ...
来源:[J].Nuclear Fusion(IF 2.734), 2014, Vol.54 (8)IOP
摘要:The behaviour of tungsten in the core of hybrid scenario plasmas in JET with the ITER-like wall is analysed and modelled with a combination of neoclassical and gyrokinetic codes. In these discharges, good confinement conditions can be maintained only for the first 2–3 s of t...
作者:C.F. Maggi , J. Mailloux ...
来源:[J].Nuclear Fusion(IF 2.734), 2015, Vol.55 (5)IOP
摘要:The replacement of the JET carbon wall (C-wall) by a Be/W ITER-like wall (ILW) has affected the plasma energy confinement. To investigate this, experiments have been performed with both the C-wall and ILW to vary the heating power over a wide range for plasmas with different...
作者:C.F. Maggi , J.E. Rice ...
来源:[J].Nuclear Fusion(IF 2.734), 2015, Vol.55 (6)IOP
摘要:This conference report summarizes the contributions to, and discussions at, the 19th Joint EU-US Transport Task Force workshop, held in Culham, UK, during 8–11 September 2014. The workshop was organized under six topics: momentum transport, energetic particles, challenges in...
作者:C.F. Maggi , F. Militello ...
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.F. Maggi , L. Meneses ...
来源:[J].Nuclear Fusion(IF 2.734), 2016, Vol.56 (10)IOP
摘要:Geodesic acoustic modes (GAMs) have been investigated in JET ohmic discharges using mainly Doppler backscattering. Characteristics and scaling properties of the GAM are studied. Time and spatial resolved measurements of the perpendicular velocity indicate that GAMs are located in...

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