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作者:D.E. Newman , B.A. Carreras , P.H. Diamond
来源:[J].Physics Letters A(IF 1.766), 1996, Vol.218 (1), pp.58-63
摘要:Abstract(#br)Sheared wind on a sandpile model produces a decorrelation of transport events and eliminates events with scale lengths on the order of the box size. The effective diffusion coefficient changes its asymptotic behavior from D eff ∝ x α , with α close to 1, to D ef...
作者:C. Holland , P.H. Diamond
来源:[J].Physics Letters A(IF 1.766), 2005, Vol.344 (5), pp.369-382
摘要:Abstract(#br)The electron temperature gradient mode has been proposed to be a source of experimentally relevant electron thermal transport, via a variety of non-linear phenomena such as the generation of streamers. The question of streamer stability and saturation is revisit...
作者:M.V. Medvedev , P.H. Diamond
来源:[J].Physics Letters A(IF 1.766), 1996, Vol.219 (5), pp.293-298
摘要:Abstract(#br)The saturation of ion-cyclotron Alfvén turbulence excited by beam particles is investigated using the resonance broadening theory. The stochastic scattering which decorrelates particles, includes both random acceleration by electric fields and a turbulent magnet...
作者:... A. Das , P.H. Diamond , A. Smolyakov
来源:[J].Physics Letters A(IF 1.766), 2002, Vol.302 (2), pp.119-124
摘要:Abstract(#br)The possibility of fast dynamo action by collisionless kinetic Alfven wave turbulence is demonstrated. The irreversibility necessary to lock in the generated field is provided by electron Landau damping, so the induced electric field does not vanish with resistivity....
作者:J. Fleischer , P.H. Diamond
来源:[J].Physics Letters A(IF 1.766), 2001, Vol.283 (3), pp.237-242
摘要:Abstract(#br)We examine MHD Burgerlence using instanton path integral techniques. It is shown that the characteristic directions are of fundamental importance in the extended functional space as well as the original physical space. For forced Burgerlence, statistical stationarity...
作者:P.H. Diamond , J.G. Chen ...
来源:[J].Nuclear Fusion(IF 2.734), 2019, Vol.59 (1)
摘要:By using the specific co-neutral beam injection (co-NBI) and counter-NBI systems on EAST, an alternating flow shear discharge has been obtained to study the impact of the flow shear on ballooning-driven edge localized modes (ELMs) at a fixed high collisionality (). The results ...
作者:P.H. Diamond , N. Cao ...
来源:[J].Nuclear Fusion(IF 2.734), 2017, Vol.57 (11)
摘要:Changes in the core intrinsic toroidal rotation velocity following L- to H- and L- to I-mode transitions have been investigated in Alcator C-Mod tokamak plasmas. The magnitude of the co-current rotation increments is found to increase with the pedestal temperature gradient a...
作者:P.H. Diamond , W.H. Ko ...
来源:[J].Nuclear Fusion(IF 2.734), 2017, Vol.57 (6)
摘要:Experiments of electron cyclotron resonance heating (ECH) power scan in KSTAR tokamak clearly demonstrate that both the cutoff density for non-local heat transport (NLT) and the threshold density for intrinsic rotation reversal can be determined by the collisionality. We demonstr...
作者:P.H. Diamond , J.Q. Dong ...
来源:[J].Nuclear Fusion(IF 2.734), 2017, Vol.57 (12)
摘要:The temporal-spatial structures of plasma flows and turbulence around tearing mode islands are presented. The experiments were performed using Langmuir probe arrays in the edge plasmas of J-TEXT tokamak. The correlation analyses clearly show that the flows have similar structures...
作者:P.H. Diamond , Z.B. Guo ...
来源:[J].Nuclear Fusion(IF 2.734), 2018, Vol.58 (11)
摘要:Quiescent H-mode (QH-mode) has been identified as an attractive stationary operational regime in tokamaks due to its lack of edge localized modes (ELMs), along with good particle and impurity control aided by the presence of magnetohydrodynamic modes such as the edge harmoni...

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