H-Mode density limit disruption avoidance in ASDEX Upgrade, TCV and JET

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Transient magneto-hydrodynamic (MHD) events like edge localized modes (ELMs) or disruptions are a concern for magnetic confinement fusion power plants. Research with the MHD code JOREK towards understanding control of such instabilities is reviewed here in ...

Thermonuclear fusion of light atoms is the primary energy source of stars, such as our Sun, that led to the emergence of life on Earth. However, its economic exploitation as a virtually unlimited and clean energy source is yet to be developed. One of the m ...

This work presents a quantitative test of SOLPS-ITER simulations against tokamak a configuration variable (TCV) L-mode experiments. These simulations account for drifts, currents, kinetic neutrals, and carbon impurities providing the most complete edge tra ...

A Nb3Sn based, React&Wind flat cable, named RW2, was developed in the past three years at the Swiss Plasma Center in the scope of the EUROfusion conceptual studies for DEMO. The test results presented earlier proved an excellent DC performance, but large e ...

The vacuum discharge along the dielectric surface, also called surface flashover, brings significant damages to the vacuum-solid insulation system. Here we implement shape-flexible, complex surface groove microstructures on the dielectric to mitigate the i ...

An 1 MW long-pulse (2s), 84/126 GHz dual frequency gyrotron has been produced by THALES MSI, France responding to the needs for upgrading the ECH system of the TCV tokamak The initial tests of the prototype carried out at EPFL, Switzerland, have verified a ...

Fast particles in fusion plasmas may drive Alfven modes unstable leading to fluctuations of the internal electromagnetic fields and potential loss of particles. Such instabilities can have an impact on the performance and the wall-load of machines with bur ...

Heavy impurities, such as tungsten (W), can exhibit strongly poloidally asymmetric density profiles in rotating or radio frequency heated plasmas. In the metallic environment of JET, the poloidal asymmetry of tungsten enhances its neoclassical transport up ...

The ITER high-frequency (HF) magnetic diagnostic system has to provide essential measurements of MHD instabilities with |deltaBmeas/BPOL|~1e-4 (~1G) for frequencies up to 2MHz to resolve toroidal mode numbers (n) in the range |n|=10 to |n|=50. A review of ...

Magnetohydrodynamic (MHD) instabilities and plasma rotation have various impacts on particle and thermal transport in toroidal plasmas. MHD instabilities degrade the confinement, limit the maximum achievable plasma pressure, and can lead to plasma disrupti ...

Electron cyclotron resonance heating (ECRH) has proven to be one of the most attractive heating schemes for stellarators. Therefore, ECRH was chosen to be the main heating method for the Wendelstein 7-X stellarator (W7-X) now under construction at IPP Grei ...

H-Mode density limit disruption avoidance in ASDEX Upgrade, TCV and JET

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Non-linear MHD modelling of transients in tokamaks: a review of recent advances with the JOREK code

Drift-related transport and plasma-neutral interaction in the TCV divertor

SOLPS-ITER validation with TCV L-mode discharges

A New Cabled Stabilizer for the Nb3Sn React&Wind DEMO Conductor Prototype

The effect of microstructure on vacuum surface flashover

Manufacturing and Test of the 1 MW Long-Pulse 84/126 GHz Dual-Frequency Gyrotron for TCV

Experimental observations of modes with geodesic acoustic character from the core to the edge in the TCV tokamak

Benchmark of gyrokinetic, kinetic MHD and gyrofluid codes for the linear calculation of fast particle driven TAE dynamics

High Z neoclassical transport: Application and limitation of analytical formulae for modelling JET experimental parameters

Assessment of the ITER High-Frequency Magnetic Diagnostic Set

Stability and toroidal rotation properties of highly shaped plasmas in the TCV tokamak

Progress on the design of various magnetic sensors for ITER: diamagnetic and flux loops, high frequency coils, in-vessel and divertor coils, ex-vessel coils, and external Rogowskis

140 GHz high-power gyrotron development for the stellarator W7-X