TJ-K
Stellarator
Associated Organization:
Project Status
Operating
Publications
Transport regulation and energy transfer dynamics during zonal flow formation Causal coupling of edge-SOL coherent structures with zonal flows Interplay of turbulent transport and Reynolds stress in drift-wave turbulence A neural network for the analysis of Langmuir-probe characteristicsNondiffusive particle transport in the stellarator experiment TJ-K Validation of GBS plasma turbulence simulation of the TJ-K stellarator Plasma electron acceleration in a non-resonant microwave heating scheme below the electron cyclotron frequency Turbulent energy transfer into zonal flows from the weak to the strong flow shear regime in the stellarator TJ-K Experimental observation of resonance manifold shrinking under zonal flow shear The influence of magnetic field curvature on intermittency in drift-wave turbulence in the stellarator TJ-K The collisionality dependence of intermittency level in drift-wave turbulence in the stellarator TJ-K Spatio-temporal structure of turbulent Reynolds stress zonal flow drive in 3D magnetic configuration Collisional Scaling of the Energy Transfer in Drift-Wave Zonal Flow Turbulence Advancing the understanding of plasma transport in mid-size stellarators The structure and poloidal dynamics of blob filaments in TJ-K Scaling and transport analyses based on an international edge turbulence database The influence of plasma edge dynamics on blob properties in the stellarator TJ-K Experimental Evidence of Turbulent Transport Regulation by Zonal Flows Schemes of microwave heating of overdense plasmas in the stellarator TJ-K Spatial structure of drift-wave turbulence and transport in a stellarator A link between nonlinear self-organization and dissipation in drift-wave turbulenceObservation of exponential spectra and Lorentzian pulses in the TJ-K stellarator Experimental Investigation of the Magnetic Configuration Dependence of Turbulent Transport On the interaction of turbulence and flows in toroidal plasmas Long-range correlations induced by the self-regulation of zonal flows and drift-wave turbulence Observation of Anomalous Ion Heating by Broadband Drift-Wave Turbulence Non-linear dynamics and plasma flows in a basic toroidal plasma experiment Generation and heating of toroidally confined overdense plasmas with 2.45 GHz microwaves Physical Mechanism behind Zonal-Flow Generation in Drift-Wave Turbulence Generation of Intermittent Turbulent Events at the Transition from Closed to Open Field Lines in a Toroidal Plasma Experimental estimation of the dual cascade in two-dimensional drift-wave turbulence Plasma Start-Up Measurements in the Toroidal Plasma Experiment TJ-K Experimental study of the electromagnetic component of drift-wave turbulence Investigation of the perpendicular dynamics of drift-wave turbulence in a toroidal plasma with multi-probe arrays Bispectral experimental estimation of the nonlinear energy transfer in two-dimensional plasma turbulence Observation of large-scale coherent structures under strong E × B shear in the torsatron TJ-K Investigation of the parallel dynamics of drift-wave turbulence in toroidal plasmas Towards turbulence control in magnetised plasmas Comparison of Langmuir and emissive probes as diagnostics for turbulence studies in the low-temperature plasma of the torsatron TJ-K rho-s scaling of characteristic turbulent structures in the torsatron TJ-K Study of edge turbulence in dimensionally similar laboratory plasmas On the detection of Reynolds stress as a driving and damping mechanism of geodesic acoustic modes and zonal flows The Torsatron TJ-K, an experiment for the investigation of turbulence in a toroidal low-temperature plasma Comparison of turbulence measurements and simulations of the low-temperature plasma in the torsatron TJ-K Plasma parameter limits of magnetically confined low temperature plasmas from a combined particle and power balance Statistical properties of drift wave turbulence in low-temperature plasmasYears Operated
1999 - Present
The experiment TJ-K is a fusion device of stellarator type. Although TJ-K was originally constructed to be operated with a fusion plasma, at IGVP it is operated with a low-temperature plasma. The reduced temperature enables probe measurements inside the plasma with high temporal and spatial resolution. At the same time, dimensionless plasma parameters, which control the turbulent dynamics, are similar to those in the edge region of fusion plasmas. Three microwave heating sources operating at different frequencies allow for plasma generation at background magnetic fields from 50 mT up to 500 mT. The research topics are on the one hand the investigation of plasma dynamics by multi-probe arrays and a high-speed camera and comparing the results with numerical simulations and on the other hand the experimental and numerical investigation of plasma-microwave interaction.
