Model-based estimation of tokamak plasma profiles and physics parameters: algorithm overview and application to ITER

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

Understanding cross field heat and particle transport is crucial in tokamaks, especially in the X-point and divertor regions. However, the complex magnetic field geometry and the associated turbulent and drift phenomena lead to large heat fluxes, rendering ...

The pre-thermal quench (pre-TQ) dynamics of a pure deuterium ( D 2 ) shattered pellet injection (SPI) into a 3 MA / 7 MJ JET H-mode plasma is studied via 3D non-linear MHD modelling with the JOREK code. The interpretative modelling captures the overall evo ...

Massive material injections in the JET tokamak have been observed to substantially affect resistive bolometer measurements, resulting in a spurious radiated power signal proportional to the quantity injected and reaching up to 8 MW. These bolometers are ca ...

The quasi-continuous exhaust (QCE) regime, formerly known as either type-II ELM or small ELM regime is studied in ASDEX Upgrade. The regime is a natural type-I ELM-free H-mode. The operational space of QCE discharges in ASDEX Upgrade with respect to their ...

Runaway electrons (REs) created during tokamak disruptions pose a threat to the reliable operation of future larger machines. Experiments using shattered pellet injection (SPI) have been carried out at the JET tokamak to investigate ways to prevent their g ...

A series of experiments have been executed at JET to assess the efficacy of the newly installed shattered pellet injection (SPI) system in mitigating the effects of disruptions. Issues, important for the ITER disruption mitigation system, such as thermal l ...

The stepped-pressure equilibrium code (SPEC) (Hudson et al., Phys. Plasmas, vol. 19, issue 11, 2012, 112502) is extended to allow the computation of multi-region, relaxed magnetohydrodynamics (MRxMHD) equilibria at prescribed toroidal current profile. Toro ...

In the last few years, the current density of Bi-2212 wires has been greatly improved by filament densify technologies. One further step toward applications in fusion magnets is to design a high current cable, which must overcome the drawbacks of Bi-2212 w ...

We have investigated the influence of potassium intercalation on the formation of the charge-density wave (CDW) instability in 2H-TaSe2 by means of electron energy-loss spectroscopy and density functional theory. Our observations are consistent with a fill ...

Several important network applications cannot easily scale to higher data rates without requiring focusing just on the large traffic flows. Recent works have discussed algorithmic solutions that trade-off accuracy to gain efficiency for filtering and track ...

The theoretical study of plasma turbulence is of central importance to fusion research. Experimental evidence indicates that the confinement time results mainly from the turbulent transport of energy, the magnitude of which depends on the turbulent state r ...

Model-based estimation of tokamak plasma profiles and physics parameters: algorithm overview and application to ITER

Chat with Graph Search

Impact of the magnetic shear on plasma equilibrium and turbulent transport in the vicinity of an X-point in TORPEX

Interpretative 3D MHD modelling of deuterium SPI into a JET H-mode plasma

Spurious radiated power signal following massive material injections in JET and the effect of neutral gas pressure on resistive bolometers

Analysis and expansion of the quasi-continuous exhaust (QCE) regime in ASDEX Upgrade

Physics of runaway electrons with shattered pellet injection at JET

Shattered pellet injection experiments at JET in support of the ITER disruption mitigation system design

Computation of multi-region, relaxed magnetohydrodynamic equilibria with prescribed toroidal current profile

Design Study of a 50-kA React-and-Wind Bi-2212 Cable for Fusion Magnet

Plasmon evolution and charge-density wave suppression in potassium intercalated 2H-TaSe2

Evolution of Cache Replacement Policies to Track Heavy-Hitter Flows

The role of plasma elongation on turbulent transport in magnetically confined plasmas