JET machine operations in T&D-T

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In order to prepare the operation of ITER, it is important to estimate the amplitude of the runaway electron (RE) current that could appear following disruptions at large plasma currents. Theoretically, the avalanche gain of RE population on a toroidal flu ...

Linear gyrokinetic (GK) simulations using the Gyrokinetic Toroidal Code (GTC) [Lin et al., "Turbulent transport reduction by zonal flows: Massively parallel simulations," Science 281, 1835-1837 (1998)] have been performed to investigate Toroidicity-driven ...

In this doctoral thesis, a promising technique has been used for the measurement of non-thermal electrons in TCV. The technique employs a Vertical viewing ECE to more easily discriminate the radiation according to the energy of the electrons. Successful ...

Cross-field transport of particles in the boundary region of magnetically confined fusion plasmas is dominated by turbulence. Blobs, intermittent turbulent structures with large amplitude and a filamentary shape appearing in the scrape-off layer (SOL), are ...

DIII-D physics research addresses critical challenges for the operation of ITER and the next generation of fusion energy devices. This is done through a focus on innovations to provide solutions for high performance long pulse operation, coupled with funda ...

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 ...

Helicon current drive (CD), also called fast wave CD in the lower hybrid range of frequencies, has long been regarded as a promising CD tool for reactor grade plasmas. A newly installed MW-level system at DIII-D will be the first test of this technology in ...

The interaction between neutral particles and the plasma plays a key role in determining the dynamics of the tokamak boundary that, in turn, significantly impact the overall performance of the device. Leveraging the work in Wersal and Ricci [Nucl. Fusion 5 ...

An extension of the SolEdge2D-EIRENE code package, named D-WEE, has been developed to add the dynamics of thermal desorption of hydrogen isotopes from the surface of plasma facing materials. To achieve this purpose, D-WEE models hydrogen isotopes implantat ...

Fast ions in W7-X will be produced either by neutral beam injection (NBI) or by ion-cyclotron resonant heating (ICRH). The latter presents the advantage of depositing power locally and does not suffer from core accessibility issues (Drevlak et al 2014 Nucl ...

Controlled nuclear fusion could provide our society with a clean, safe, and virtually inexhaustible source of electric power production. The tokamak has proven to be capable of producing large amounts of fusion reactions by confining magnetically the ...

An R&D program at CRPP investigates the design of large size Nb3Sn conductors, with the aim to improve the effectiveness and hence the cost of large size, force flow conductors. A design based on a solder filled flat cable, by react wind method, is selecte ...

JET machine operations in T&D-T

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The effect of vertical displacements on the runaway electron avalanche in ITER mitigated disruptions

Linear gyrokinetic simulations of toroidal Alfvén eigenmodes in the Mega-Amp Spherical Tokamak

Measuring the electron energy distribution in tokamak plasmas from polarized electron cyclotron radiation

Estimating cross-field particle transport at the outer midplane of TCV by tracking filaments with machine learning

DIII-D research advancing the physics basis for optimizing the tokamak approach to fusion energy

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

The high-power helicon program at DIII-D: gearing up for first experiments

Self-consistent simulation of multi-component plasma turbulence and neutral dynamics in the tokamak boundary

Dynamic modelling of local fuel inventory and desorption in the whole tokamak vacuum vessel for auto-consistent plasma-wall interaction simulations

ICRH induced particle losses in Wendelstein 7-X

The role of the sheath in magnetized plasma turbulence and flows

Test results of a large size, forced flow Nb3Sn conductor, based on a design alternative to the cable-in-conduit

Design of a tangential Phase Contrast Imaging diagnostic for the TCV tokamak

JET machine operations in T&amp;D-T

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JET machine operations in T&D-T