Visualization of magnetically confined plasmas
نویسندگان
چکیده
منابع مشابه
Microstability of magnetically confined electron-positron plasmas.
It is shown that magnetically confined electron-positron plasmas can enjoy remarkable stability properties. Many of the microinstabilities driving turbulence and transport in electron-ion plasmas are absent if the density is so low that the Debye length is significantly larger than the gyroradius. In some magnetic configurations, almost complete linear stability may be attainable in large parts...
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A direct method to measure the localized magnetic shear stress and hence electromagnetic torque or force exerted on a wall by a fluctuating magnetic field is presented. A model of the wall is needed when the magnetic measurements do not include the normal component. Explicit formulas for thin and thick walls are given. Estimates of the force in illustrative Alcator C-Mod tokamak plasmas provide...
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Magnetic confinement of neutral plasmas in a tokamak is one of the most promising avenues for generating power via nuclear fusion. Plasma disruption and energy loss, however, continue to cause problems even as larger experimental plants are being built. In particular, cyclical disruption of the plasma’s core electron temperature is a persistent but poorly explained phenomenon. In this paper, I ...
متن کاملSize scaling of turbulent transport in magnetically confined plasmas.
Transport scaling with respect to device size in magnetically confined plasmas is critically examined for electrostatic ion-temperature-gradient turbulence using global gyrokinetic particle simulations. It is found, by varying device size normalized by ion gyroradius while keeping other dimensionless plasma parameters fixed, that fluctuation scale length is microscopic in the presence of zonal ...
متن کاملBasics of turbulence computation for magnetically confined plasmas
The ideas of low frequency dynamics driven by pressure gradients in magnetised plasmas are outlined. Fluid, gyrofluid, and gyrokinetic models are defined. Basic computational methods including coordinate representations are reviewed and a list of criteria for well posed cases is given. The consequences of nonlinearity vis-a-vis instabilities are shown. Other topics used as examples are scale se...
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ژورنال
عنوان ژورنال: Computing and Visualization in Science
سال: 1999
ISSN: 1432-9360,1433-0369
DOI: 10.1007/s007910050017