نتایج جستجو برای: tokamak device
تعداد نتایج: 682627 فیلتر نتایج به سال:
The LiMIT system (Lithium/Metal Infused Trenches) is an innovative plasma-facing component for tokamak divertors, recently proposed at the University of Illinois. Thanks to the coupling of two metals having different Seebeck coefficients, the device is able to generate internal thermoelectric currents as a response to an incoming heat flux from the plasma. One of the two metals is liquid lithiu...
Abstract Obtaining acceptable conditions at the divertor targets of a next-step fusion experiment based on tokamak concept is expected to be particularly challenging because small predicted value plasma power exhaust channel width. An increased confidence in this prediction important forestall any issue and developing corresponding solutions. With present relying empirical scaling laws data fro...
A device is described which is designed to refuel tokamaks of major radius -1 m and magnetic field -1 T by the injection of a compact torus. The injector utilizes an acceleration stage which adds kinetic energy to the compact torus so that it can penetrate the tokamak magnetic field. The performance of the device was found to be optimized in an unexpected parameter regime. It is theorized that ...
The fluctuation-induced dynamo effect, resulting from the correlation between electron pressure fluctuation and radial magnetic in core, is measured by an cyclotron radiometer Faraday-effect polarimetry high-temperature tokamak plasmas. acts to flatten parallel current core of a confinement fusion device.
The FACETS project aims to provide computational tools for whole device simulation of tokamak transport for use in fusion applications. The framework provides flexibility by allowing users to choose the best model for a given physics target. Our goals are to develop accurate transport solvers using neoclassical and turbulent fluxes with varying degree of fidelity and computational complexity, i...
Using theoretical arguments, a simple scaling law for the size of the intrinsic rotation observed in tokamaks in the absence of a momentum injection is found: The velocity generated in the core of a tokamak must be proportional to the ion temperature difference in the core divided by the plasma current, independent of the size of the device. The constant of proportionality is of the order of 10...
The controlling of plasma shape and position are essential to the success of Tokamak discharge. A real-time image acquisition system was designed to obtain plasma radiation image during the discharge processes in the Experimental Advanced Superconducting Tokamak (EAST) device. The hardware structure and software design of this visible camera system are introduced in detail. According to the gen...
With fusion device performance hinging on the edge pedestal pressure, it is imperative to experimentally understand the physical mechanism dictating the pedestal characteristics and to validate and improve pedestal predictive models. This Letter reports direct evidence of density and magnetic fluctuations showing the stiff onset of an edge instability leading to the saturation of the pedestal o...
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