Results 191 to 200 of about 31,111 (232)
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Erosion and deposition in tokamaks
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 1985The flow of metal impurities from the wall and limiter to the plasma, and back towards the wall, is investigated using surface collection probes and subsequent surface analysis in order to understand impuritiy generation and impurity transport. Impurity fluxes and their scrapeoff lengths have been investigated for several years in a large number of ...
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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 ...
Team, P., Karger, F., Klueber, O.
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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 ...
Team, P., Karger, F., Klueber, O.
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Tokamak to tokamak variation and collinearity in scaling laws
Nuclear Fusion, 1990The large multiplicity of scaling laws which almost fit the data is associated with the near degeneracy of the data covariance matrix. The traditional analysis assumes that only discharge to discharge variations are important. Using Swamy's random coefficient model, tokamak to tokamak variations are included in the statistical analysis.
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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 ...
N. J. Lopes Cardozo +10 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 ...
N. J. Lopes Cardozo +10 more
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Fusion Technology, 1998
From a discussion of fusion reactor designs based on today`s well-established experience gained in the operation of large tokamaks, it is concluded that such reactors are economically not attractive. The physics involved in the various options for concept improvement is described and the main experimental results of current research are shortly ...
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From a discussion of fusion reactor designs based on today`s well-established experience gained in the operation of large tokamaks, it is concluded that such reactors are economically not attractive. The physics involved in the various options for concept improvement is described and the main experimental results of current research are shortly ...
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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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Nuclear Fusion, 1984
Impurities continue to be a concern for future fusion devices, and ongoing efforts are made to study their generation, confinement, and control. Techniques for analysis of concentrations, power losses, and confinement of impurities are surveyed, and experimental examples illustrating typical observations in tokamak plasmas are presented.
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Impurities continue to be a concern for future fusion devices, and ongoing efforts are made to study their generation, confinement, and control. Techniques for analysis of concentrations, power losses, and confinement of impurities are surveyed, and experimental examples illustrating typical observations in tokamak plasmas are presented.
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2021
The tokamak is currently the most common torus-shaped device that uses magnetic fields to confine a plasma.
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The tokamak is currently the most common torus-shaped device that uses magnetic fields to confine a plasma.
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Nuclear Fusion, 1985
The Adiabatic Toroidal Compressor (ATC) successfully demonstrated major-radius compression of Ohmic and auxiliary heated tokamak plasmas. Plasma densities well above 1014 cm−3 were reached, together with central ion and electron temperatures above 1 keV.
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The Adiabatic Toroidal Compressor (ATC) successfully demonstrated major-radius compression of Ohmic and auxiliary heated tokamak plasmas. Plasma densities well above 1014 cm−3 were reached, together with central ion and electron temperatures above 1 keV.
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