英国物理学会
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作者:J.Q. Dong , G. Zhuang
来源:[J].Nuclear Fusion(IF 2.734), 2015, Vol.55 (7)IOP
摘要:The first comprehensive measurements of plasma flows and fluctuations nearby static magnetic islands driven by resonant magnetic perturbations are presented. These experiments were performed using multiple Langmuir probe arrays on the edge plasmas of the J-TEXT tokamak. Controlle...
作者:J.Q. Dong , Yi Liu ...
来源:[J].Nuclear Fusion(IF 2.734), 2015, Vol.55 (11)IOP
摘要:The oscillations of poloidal plasma flows induced by radially sheared zonal flows are investigated by newly developed correlation Doppler reflectometers in the HL-2A tokamak. The non-disturbing diagnostic allows one to routinely measure the rotation velocity of turbulence, and he...
作者:J.Q. Dong , K. Ida ...
来源:[J].Nuclear Fusion(IF 2.734), 2016, Vol.56 (5)IOP
摘要:Ion internal transport barriers (iITBs) are first observed in neutral beam injection (NBI) heated plasmas at the HL-2A tokamak. The position of the barrier foot, in the stationary state, coincides with the q = 1 surface within its uncertainty of measurement. iITBs can develo...
作者:J.Q. Dong , G.Z. Hao ...
来源:[J].Nuclear Fusion(IF 2.734), 2016, Vol.56 (5)IOP
摘要:The resonant interaction between the energetic particle triggered fishbone mode and the shear Alfvén waves is computationally investigated and firmly demonstrated based on a tokamak plasma equilibrium, using the self-consistent MHD-kinetic hybrid code MARS-K (Liu et al 2008 ...
作者:J.Q. Dong , G. Zhuang
来源:[J].Nuclear Fusion(IF 2.734), 2016, Vol.56 (7)IOP
摘要:The acceleration of the co-current toroidal rotations around resonant surfaces by resonant magnetic perturbations (RMPs) through turbulence is presented. These experiments were performed using a Langmuir probe array in the edge plasmas of the J-TEXT tokamak. This study aims ...
作者:J.Q. Dong , X.R. Duan ...
来源:[J].Nuclear Fusion(IF 2.734), 2016, Vol.56 (12)IOP
摘要:Edge localized mode (ELM) is successfully mitigated by helium and deuterium supersonic molecular beam injections (SMBIs) on HL-2A. During the ELM mitigation by SMBIs, gradients of ion temperature ( T i) and electron density are softened in the pedestal. It has bee...
作者:J.Q. Dong , M. Xu ...
来源:[J].Nuclear Fusion(IF 2.734), 2017, Vol.57 (3)IOP
摘要:Strong resonant and non-resonant internal kink modes (abbreviated as RKs and NRKs, respectively), which are also called resonant and non-resonant fishbones, are observed on HL-2A tokamak with high-power ECRH + ECCD (or ECRH) and ECRH + ECCD+, respectiv...
作者:... Zheng-Xiong Wang , J.Q. Dong , Huarong Du
来源:[J].Nuclear Fusion(IF 2.734), 2017, Vol.57 (4)IOP
摘要:The ion temperature gradient (ITG) modes in transport barriers (TBs) of tokamak plasmas are numerically studied with a code solving gyrokinetic integral eigenvalue equations in toroidal configurations. It is found that multiple ITG modes with conventional and unconventional ballo...
作者:J.Q. Dong , M. Xu ...
来源:[J].Nuclear Fusion(IF 2.734), 2017, Vol.57 (4)IOP
摘要:Coexisting dual kinetic geodesic acoustic modes (KGAMs) with similar characteristics have been observed with Langmuir probe arrays in the edge plasma of HL-2A tokamak with low density Ohmic discharge. The dual KGAMs are named a low-frequency GAM (LFGAM) and a high-frequency GAM (...
作者:J.Q. Dong , K. Itoh ...
来源:[J].Nuclear Fusion(IF 2.734), 2017, Vol.57 (7)IOP
摘要:New mesoscale electric fluctuations (MSEFs) are identified in the edge plasmas of the HL-2A tokamak using multiple Langmuir probe arrays. The MSEFs, resulting from the synchronization and having components of dominant geodesic acoustic mode (GAM) and m / n = 6/2 potential fluctua...

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