The main goal of FTU lithium liquid metal experiments was to demonstrate the capability of the Capillary Porous System (CPS), firstly tested on T-11 tokamak, to confine liquid lithium avoiding sudden release as consequence of j×Β electromagnetic force on the surface. These latter should be balanced by the surface tension forces associated to the liquid lithium in capillary channels. Very encour...

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Reference 1-GWe D-T reactors; tokamak TR-1, spherical tokamak ST-1 and helical HR-1 reactors, are designed using PEC (Physics Engineering Cost) code, and thier plasma behaviors with Internal Transport Barrier (ITB) operations are analyzed using TOTAL (Toroidal Transport Analysis Linkage) code, which clarifies the requirement of deep penetration of pellet fueling to realize steady-state advanced...

With the development of modern tokamak devices, magnetic interference problem has become increasingly serious. On considering International Thermonuclear Experimental Reactor (ITER), for example, stray field around device will be over 200 mT. To ensure reliable operation electrical and electronic equipment installed tokamak, immunity test becomes a mandatory requirement. Generally, set coils is...

The Tokamak Physics Experiment (TPX) was a steady-state, tokamak to be built at the Princeton Plasma Physics Laboratory. It would have been the first tokamak in the world with an entirely superconducting magnet system. The project was terminated by the United States Congress in 1995. However, most of the TPX mission has been adopted recently by the South Korean project KSTAR (Korean Superconduc...

Ray tracing calculations are performed for shear Alfv en waves in two-ion species plasmas in which the magnetic field varies with position. Three different magnetic topologies of contemporary interest are explored: a linear magnetic mirror, a pure toroidal field, and a tokamak field. The wave frequency is chosen to lie in the upper propagation band, so that reflection at the ion-ion hybrid freq...

A wide-frequency range (50-300 kHz) power system has been implemented for use with a new RF antenna – the “Shoelace” antenna – built to drive coherent plasma fluctuations in the edge of the Alcator C-Mod tokamak. A custom, dynamically-tunable matching network allows two commercial 1 kW, 50-Ω RF amplifiers to drive the low-impedance, inductive load presented by the antenna. This is accomplished ...

In the approach presented here we combine theoretic aspects and experimental results in order to obtain threefold information on intermittency and edge localized mode (ELM) dynamics using: a) multifractal analysis, b) level-crossing properties of plasma density time series and c) stochastic catastrophy theory (CT). Intermittency properties of the MAST spherical tokamak (L-, Hand dithering H-mod...

Plasma instability events such as disruptions, resulting runaway electrons, edge-localized modes (ELM), and vertical displacement events (VDE) aremainly themost limiting factor for successful tokamak reactor concept. The plasma-facing components (PFC), e.g., wall, divertor, and limited surfaces of a tokamak as well as coolant structure materials are subjected to intense particle and heat loads ...