英国物理学会
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作者:J. Cheng , J. Q. Dong ...
来源:[J].EPL (Europhysics Letters)(IF 2.26), 2016, Vol.116 (1)IOP
摘要:A qualitative model which includes three loops of zonal flow vs. turbulence and turbulence vs. pressure gradient is proposed for the experimentally observed two types of limit cycle oscillations (LCOs) and low-intermediate-high (L-I-H) confinement transitions. The experiment...
作者:... Z. Luo , X. Yue , J. Cheng
来源:[J].Journal of Instrumentation(IF 1.869), 2014, Vol.9 (11)IOP
摘要:Muon tomography is an advanced technology to non-destructively detect high atomic number materials. It exploits the multiple Coulomb scattering information of muon to reconstruct the scattering density image of the traversed object. Because of the statistics of muon scattering, t...
作者:... W. Zhu , Y. Li , J. Cheng
来源:[J].Journal of Instrumentation(IF 1.869), 2014, Vol.9 (12)IOP
摘要:A prototype of cosmic muon scattering tomography system has been set up in Tsinghua University in Beijing. Multi-gap Resistive Plate Chamber (MRPC) is used in the system to get the muon tracks. Compared with other detectors, MRPC can not only provide the track but also the Time o...
作者:J. Cheng , H. Liu ...
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. Cheng , R. Ke ...
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. Cheng , Y. Liu ...
来源:[J].Nuclear Fusion(IF 2.734), 2015, Vol.55 (11)IOP
摘要:Self-organized criticality (SOC) dynamics have been investigated in non-local transport regimes induced by the supersonic molecular beam injection in the HL-2A tokamak. Experimental evidence shows that the SOC or avalanche behaviors, such as the Hurst parameter, self-similarity a...
作者:J. Cheng , Z.P. Chen ...
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. Cheng , Y. P. Cheng ...
来源:[J].Chinese Physics C(IF 0.338), 2017, Vol.41 (1)IOP
摘要:A new measurement of the reactor antineutrino flux and energy spectrum by the Daya Bay reactor neutrino experiment is reported. The antineutrinos were generated by six 2.9 GWth nuclear reactors and detected by eight antineutrino detectors deployed in two near (560...
作者:J. Cheng , Z.Y. Qiu ...
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. Cheng , A. Fujisawa ...
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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