Results 181 to 190 of about 1,463,568 (229)

Plasma Filamentation in the Rijnhuizen Tokamak RTP

Physical Review Letters, 1994
Evidence for small scale magnetic structures in the Rijnhuizen tokamak RTP is presented. These are manifest through steps and peaks in the electron temperature and pressure, measured with multiposition Thomson scattering. During central electron cyclotron heating, several filaments of high pressure are found in the power deposition region.
Cardozo, N.J.L., Schüller, F.C., Barth, C.J., Chu, C.C., Pijper, F.J., Lok, J., Oomens, A.A. M.   +6 more
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Magnetic Control of Tokamak Plasmas

2008
The problem of confining a plasma, with sufficiently high density and temperature, is of crucial importance if nuclear fusion is to be made usable as a form of power generation. Tokamaks – devices with a toroidal geometry – are among the most popular candidates by which such confinement can be achieved.
Ariola, Marco, PIRONTI, ALFREDO
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Plasma Equilibrium in Tokamaks

Fusion Science and Technology, 1998
We have presented a theoretical description of toroidal equilibrium which involves the solution of the Grad-Shafranov equation and a careful choice of the parameters. The experimental counterpart is the production of accurate equilibrium data by means of all available diagnostics. To get agreement between these two is a long-term iterative process. The
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Plasma control in Tokamaks

Proceedings. 2005 International Conference Physics and Control, 2005., 2006
This paper discusses and solves problems in the present-day design of the plasma control system in tokamak. The most widespread approach to the design of the magnetic plasma control involves: (i) plasma static equilibrium calculations, (ii) linear models derivation, (iii) synthesis of the controllers for the feedback control of plasma parameters, (iv ...
V. Belyakov, A. Kavin, E. Lamzin, D. Ovsyannikov, S. Sytchevsky, V. Vasiliev   +5 more
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Sawtooth Instability in Tokamak Plasmas

Astrophysics and Space Science, 1997
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Plasma equilibrium in a Tokamak

Nuclear Fusion, 1971
The paper summarizes the basic information on the equilibrium of a toroidal plasma column in systems of the Tokamak type. It considers the methods of maintaining a plasma in equilibrium with the help of a conducting casing, an external maintaining field and the iron core of a transformer.
V.S. Mukhovatov, V.D. Shafranov
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Neoclassical Transport Properties of Tokamak Plasmas

Fusion Science and Technology, 2004
The classical transport theory is strictly valid for a plasma in a homogeneous and stationary magnetic field. In the '60, experiments have shown that this theory does not apply as a local theory of transport in Tokamaks. It was shown that global geometric characteristics of the confining elements have a strong influence on the transport.
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Plasma turbulence in tokamaks

Physica A: Statistical Mechanics and its Applications, 1998
Abstract We present results from experiments on electrostatic and magnetic fluctuations in TBR Brazilian tokamak. The observed electrostatic turbulence induces anomalous particle transport that deteriorates the plasma confinement. We describe how to control this effect, by decreasing plasma turbulence, with resonant magnetic perturbations that ...
Iberê L. Caldas, Maria Vittoria A.P. Heller, Raul M. Castro, Elton C. Silva   +3 more
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Tokamak plasma biasing

Nuclear Fusion, 1993
Report on the IAEA Technical Committee Meeting held at Montreal, Quebec, Canada 8-10 September 1992.
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Inward energy transport in tokamak plasmas

Physical Review Letters, 1992
Peaked electron temperature profiles are observed in the DIII-D tokamak during electron cyclotron heating despite the fact that {gt}75% of the input power is deposited significantly off axis. Power balance analysis indicates a net inward flow of energy for electrons. An inward energy flow is not compatible with diffusive or critical gradient models.
, Luce, , Petty, , de Haas JC
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