英国物理学会
期刊
会议
图书
作者:L. Nie , M. Xu ...
来源:[J].Nuclear Fusion(IF 2.734), 2018, Vol.58 (3)IOP
摘要:Systematic calibration experiment of Langmuir probe sheath potential coefficient Λ, which is a critical coefficient for estimating plasma sheath potential, has been carried out in the HL-2A tokamak deuterium plasmas. The electron energy probability function (EEPF) shows that...
作者:L. Nie , Z.Y. Cui ...
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:L. Nie , Y.H. Ding ...
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:L. Nie , Y.H. Ding ...
来源:[J].Nuclear Fusion(IF 2.734), 2017, Vol.57 (12)IOP
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:L. Nie , R. Ke ...
来源:[J].Nuclear Fusion(IF 2.734), 2018, Vol.58 (2)IOP
摘要:The cross phase between radial velocity perturbation and poloidal velocity perturbation plays an important role in the radial distribution of Reynolds stress. Recently, a novel theory of cross-phase dynamics predicts that, depending on the strength of the E × B shearing, the...
作者:L. Nie , R. Ke ...
来源:[J].Journal of Instrumentation(IF 1.869), 2018, Vol.13 (03)IOP
摘要:A new gas puff imaging (GPI) diagnostic has been developed on the HL-2A tokamak to study two-dimensional plasma edge turbulence in poloidal vs. radial plane. During a discharge, neutral helium or deuterium gas is puffed at the edge of the plasma through a rectangular multi\nobrea...
作者:L. Nie , Z. Gao ...
来源:[J].Journal of Instrumentation(IF 1.869), 2018, Vol.13 (05)IOP
摘要:Multi-step Langmuir probe arrays have been designed and installed on the HL-2A tokamak [1]–[2] to study the turbulent transport in the edge plasma, especially for the measurement of poloidal momentum flux, Reynolds stress Rs . However, except the probe tips on the top step, ...
作者:L. Nie , Z.H. Wang ...
来源:[J].Journal of Instrumentation(IF 1.869), 2018, Vol.13 (10)IOP
摘要:Diffraction effects of diagnostic windows and a phase plate are evaluated in sets of phase contrast imaging (PCI) systems on HL-2A tokamak. Results show that wave field of an incident laser with shorter wavelength is less effected by diffraction. The diameter of viewing wind...
作者:L. Nie , D. Guo ...
来源:[J].Nuclear Fusion(IF 2.734), 2018, Vol.58 (1)IOP
摘要:Edge shear flow and its effect on regulating turbulent transport have long been suspected to play an important role in plasmas operating near the Greenwald density limit n G. In this study, equilibrium profiles as well as the turbulent particle flux and Reynolds stress...

我们正在为您处理中,这可能需要一些时间,请稍等。

资源合作:cnki.scholar@cnki.net, +86-10-82896619   意见反馈:scholar@cnki.net

×