Songfen Liu
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View article: FusionMAE: large-scale pretrained model to optimize and simplify diagnostic and control of fusion plasma
FusionMAE: large-scale pretrained model to optimize and simplify diagnostic and control of fusion plasma Open
In magnetically confined fusion device, the complex, multiscale, and nonlinear dynamics of plasmas necessitate the integration of extensive diagnostic systems to effectively monitor and control plasma behaviour. The complexity and uncertai…
View article: EFIT-mini: an embedded, multi-task neural network-driven equilibrium inversion algorithm
EFIT-mini: an embedded, multi-task neural network-driven equilibrium inversion algorithm Open
This paper presents EFIT-mini, a novel equilibrium reconstruction algorithm which integrates neural networks with physical simulation, enabling real-time plasmas control in the EXL-50U tokamak. By synergizing the high accuracy and physical…
View article: Real-time equilibrium reconstruction by multi-task learning neural network based on HL-3 tokamak
Real-time equilibrium reconstruction by multi-task learning neural network based on HL-3 tokamak Open
A neural network model, EFITNN, has been developed capable of real-time magnetic equilibrium reconstruction based on HL-3 tokamak magnetic measurement signals. The model processes inputs from 68 channels of magnetic measurement data gather…
View article: Identifying L-H transition in HL-2A through deep learning
Identifying L-H transition in HL-2A through deep learning Open
During the operation of tokamak devices, addressing the thermal load issues caused by edge localized modes (ELMs) eruption is crucial. Ideally, mitigation and suppression measures for ELMs should be promptly initiated as soon as the first …
View article: Impact of impurities on drift wave instabilities in reversed-field pinch plasmas
Impact of impurities on drift wave instabilities in reversed-field pinch plasmas Open
The drift wave in the presence of impurity ions was investigated numerically in reversed field pinch (RFP) plasmas, using the gyrokinetic integral eigenmode equation. It was found that in RFP plasmas with hollow density profiles, an increa…
View article: Microturbulence in edge of a tokamak plasma with medium density and steep temperature gradient
Microturbulence in edge of a tokamak plasma with medium density and steep temperature gradient Open
Gyrokinetic simulations of electrostatic micro-turbulence have been carried out for transport barriers (TBs) in tokamak plasmas. It is found that the ion temperature gradient (ITG) mode is dominant in the pedestal with medium density gradi…
View article: Nonlinear study of tearing modes and plasma flows around magnetic islands in tokamak plasmas
Nonlinear study of tearing modes and plasma flows around magnetic islands in tokamak plasmas Open
The behavior of non-linear tearing modes and the plasma flows around magnetic islands is studied numerically in a cylindrical geometry using the method of reduced magneto-hydro-dynamic simulation. The results show that the single tearing m…
View article: Erratum: “Study on two-dimensional equilibrium structure of magnetized complex plasmas based on a Langevin dynamics simulation” [Phys. Plasmas <b>23</b>, 103705 (2016)]
Erratum: “Study on two-dimensional equilibrium structure of magnetized complex plasmas based on a Langevin dynamics simulation” [Phys. Plasmas <b>23</b>, 103705 (2016)] Open
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