Results 31 to 40 of about 12,695 (229)
Thermal quench induced by a composite pellet-produced plasmoid
Nuclear Fusion, 2023 Injecting shattered pellets is the critical concept of the envisaged ITER disruption mitigation system (DMS). Rapid deposition of large amounts of material should presumably result in controlled cooling of the entire plasma.
Pavel Aleynikov +4 more
doaj +1 more source
The physics of an ignited tokamak [PDF]
Fusion Engineering and Design, 1991 A next step device which can demonstrate long burn with a high probability of success is possible, without speculating on the accumulation of favorable effects and ignoring the other ones. From the data base available today this appears possible only with large devices such as NET, ITER or JIT.
openaire +1 more source
Scalings for tokamak energy confinement [PDF]
Nuclear Fusion, 1990 On the basis of an analysis of the ITER L-mode energy confinement database, two new scaling expressions for tokamak L-mode energy confinement are proposed, namely a power law scaling and an offset-linear scaling. The analysis indicates that the present multiplicity of scaling expressions for the energy confinement time TE in tokamaks (Goldston, Kaye ...
Yushmanov, P. +6 more
openaire +4 more sources
Fusion, tokamaks, and plasma control - An introduction and tutorial
, 2005 The paper discusses the process behind fusion reaction, the magnetic confinement of plasma to sustain fusion reactions, different kinds of tokamaks used for the magnetic plasma confinement, the operation of tokamaks, and the control of tokamaks.
PIRONTI, ALFREDO, M. WALKER
core +1 more source
Transport simulations of ohmic pellet experiments on the TFTR, ASDEX, and ALCATOR-C tokamaks [PDF]
, 1988 Transport simulations of ohmic gas-fuelled and pellet-fuelled experiments have been carried out to test a microinstability-based, profile-consistent model of anomalous transport in tokamaks.
Gruber, O. +11 more
core +1 more source
First-Principles Density Limit Scaling in Tokamaks Based on Edge Turbulent Transport and Implications for ITER [PDF]
, 2022 A first-principles scaling law, based on turbulent transport considerations, and a multimachine database of density limit discharges from the ASDEX Upgrade, JET, and TCV tokamaks, show that the increase of the boundary turbulent transport with the plasma
Sauter, O. +4 more
core +2 more sources
High-order coupling of shear and sonic continua in JET plasmas
Nuclear Fusion, 2023 A recent model coupling the shear-Alfvén and acoustic continua, which depends strongly on the equilibrium shaping and on elongation in particular, is employed to explain the properties of Alfvénic activity observed on JET plasmas below but close to the ...
Paulo Rodrigues +10 more
doaj +1 more source
Coupling Fluid Neutrals to Gyrokinetic Plasma Dynamics for Edge and SOL Turbulence Simulations
Contributions to Plasma Physics, EarlyView.ABSTRACT Accurate modeling of turbulent transport in magnetic confinement fusion devices requires extending first‐principles gyrokinetic simulations from the core to the edge and scrape‐off layer (SOL), where additional physics—particularly plasma–neutrals interactions—must be included.
Sabine Ogier‐Collin +3 more
wiley +1 more source
Determining the validity of tokamak perturbed equilibrium modeling using nonlinear equilibria
Nuclear FusionThe prediction of perturbed equilibrium models for tokamaks with small non-axisymmetric fields is strongly dependent on which reference frame for axisymmetry is assumed.
J. Halpern +3 more
doaj +1 more source
Nuclear Fusion, 2023 We report on the observation of spatially asymmetric turbulent structures with a long radial correlation length in the core of high-collisionality H -mode plasmas on DIII-D tokamak.
R. Hong +8 more
doaj +1 more source