Results 181 to 190 of about 91,764 (228)
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Nuclear Fusion, 1985
Pulsator was operated by IPP Garching from 1973 to 1979. It made two important contributions to international tokamak research. 1. In Pulsator, for the first time a tokamak plasma was influenced locally by an external, resonant, helical field. The accompanying formation of islands on magnetic surfaces, which affects transport and stability, provided ...
Pulsator Team, F. Karger, O. Klueber
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Pulsator was operated by IPP Garching from 1973 to 1979. It made two important contributions to international tokamak research. 1. In Pulsator, for the first time a tokamak plasma was influenced locally by an external, resonant, helical field. The accompanying formation of islands on magnetic surfaces, which affects transport and stability, provided ...
Pulsator Team, F. Karger, O. Klueber
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Plasma Physics and Controlled Fusion, 1995
Disruptions and related vertical displacement events pose a major problem to the design and operation of future tokamak reactors. The cause and dynamics of disruptions will be described for the many different scenarios that these violent events can follow.
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Disruptions and related vertical displacement events pose a major problem to the design and operation of future tokamak reactors. The cause and dynamics of disruptions will be described for the many different scenarios that these violent events can follow.
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Reconnection in tokamaks [PDF]
, 1984 Calculations with several different computer codes based on the resistive MHD equations have shown that (m = 1, n = 1) tearing modes in tokamak plasmas grow by magnetic reconnection. The observable behavior predicted by the codes has been confirmed in detail from the waveforms of signals from x-ray detectors and recently by x-ray tomographic imaging.
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Equilibrium and stability of tokamaks
International Journal for Numerical Methods in Fluids, 1990AbstractAxisymmetric, ideal MHD configurations with steady flow are computed by the finite‐element method. Rectangular elements with four to nine nodes are used. The equilibria are obtained in flux co‐ordinates by mesh rearrangement. The properties of the linearized motions around an equilibrium state are studied by a normal‐mode analysis.
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The Start-up of Tokamaks and the Tokamak Start-up
1986Since I’m not a native speaker of English, I had to look for the exact meaning of “to start up” in a Dictionary. Webster’s new Twentieth Century Dictionary gives two meanings: (1) “to come into being”, and (2) “to cause (something) to begin running”. In the present case the topic of this meeting could be interpreted either as the startup of tokamaks or
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Microislands and transport in tokamaks
Journal of Plasma Physics, 2006Kadomtsev proposed a self-generation mechanism of microislands (whose half-width is smaller than the Larmor radius of the ions) based on momentum and energy exchange between the electrostatic field of the islands and the ions of the background tokamak plasma.
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The Topology of Tokamak Orbits*
Nuclear Fusion, 1979Guiding-centre orbits in non-circular axisymmetric tokamak plasmas are studied in the constants of motion (COM) space of (v, ζ, ψm. Here, v is the particle speed, ζ is the pitch angle with respect to the parallel equilibrium current, J||, at the point in the orbit where ψ = ψm, and ψm is the maximum value of the poloidal flux function (increasing from ...
James A. Rome, Y-K.M. Peng
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A full and heterogeneous model of the ITER tokamak for comprehensive nuclear analyses
, 2021R. Juarez +13 more
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AIP Conference Proceedings, 1995
The relevance of a nest of toroidal flux surfaces as a paradigm of the magnetic topology of a tokamak plasma is challenged. High resolution Thomson scattering measurements of electron temperature and density in RTP show several hot filaments in the plasma center and sharp gradients near the sawtooth inversion radius and structures outside the sawtooth ...
M. de Rover +11 more
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The relevance of a nest of toroidal flux surfaces as a paradigm of the magnetic topology of a tokamak plasma is challenged. High resolution Thomson scattering measurements of electron temperature and density in RTP show several hot filaments in the plasma center and sharp gradients near the sawtooth inversion radius and structures outside the sawtooth ...
M. de Rover +11 more
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Il Nuovo Cimento B, 1981
The main characteristics of the plasma produced in Thor tokamak discharges are described. The machine performances are outlined and the experimental results relevant to the equilibrium, the stability and the control of the discharge regimes are discussed in detail.
G. Grosso +10 more
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The main characteristics of the plasma produced in Thor tokamak discharges are described. The machine performances are outlined and the experimental results relevant to the equilibrium, the stability and the control of the discharge regimes are discussed in detail.
G. Grosso +10 more
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