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Physical Review Letters, 1983
Model mode-coupling equations for the resistive drift-wave instability are derived and numerically solved to study the properties of turbulence near a plasma edge. The wavenumber spectrum of the turbulence is found to exhibit an inverse cascade to form an isotropic, two-dimensional Kolmogorov spectrum, ${k}^{\ensuremath{-}3}$, in the large-wave-number ...
Akira Hasegawa, Masahiro Wakatani
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Model mode-coupling equations for the resistive drift-wave instability are derived and numerically solved to study the properties of turbulence near a plasma edge. The wavenumber spectrum of the turbulence is found to exhibit an inverse cascade to form an isotropic, two-dimensional Kolmogorov spectrum, ${k}^{\ensuremath{-}3}$, in the large-wave-number ...
Akira Hasegawa, Masahiro Wakatani
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Journal of Applied Physics, 1963
The reflectance minima associated with the free carrier plasma edges in p- and n-type Bi2Te3 have been observed at 78° and 300°K. The data together with the measured Hall and Seebeck coefficients have yielded combined band structure-relaxation time parameters when proper account is taken of the anisotropy.
Robert Sehr, Louis R. Testardi
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The reflectance minima associated with the free carrier plasma edges in p- and n-type Bi2Te3 have been observed at 78° and 300°K. The data together with the measured Hall and Seebeck coefficients have yielded combined band structure-relaxation time parameters when proper account is taken of the anisotropy.
Robert Sehr, Louis R. Testardi
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Plasma Edge Physics with B2‐Eirene
Contributions to Plasma Physics, 2006AbstractThe B2‐Eirene code package was developed to give better insight into the physics in the scrape‐off layer (SOL), which is defined as the region of open field‐lines intersecting walls. The SOL is characterised by the competition of parallel and perpendicular transport defining by this a 2D system.
Schneider, R. +7 more
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Isotope studies of the edge plasma in ASDEX
Journal of Nuclear Materials, 1990Abstract The use of deuterium instead of hydrogen as the fuel gas in tokamak discharges improves the confinement of particles as well as of energy. This isotope effect is also observed in the edge plasma: The separatrix density is higher in hydrogen discharges compared to deuterium discharges and the separatrix temperature is slightly lower. Moreover,
Bessenrodt-Weberpals, M. +3 more
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Ion Transport in Turbulent Edge Plasmas
Physical Review Letters, 1996Edge plasmas, such as the tokamak scrape-off layer, exist as a consequence of a balance between cross-field diffusion and parallel losses. The former is usually anomalous, and is widely thought to be driven by strong electrostatic turbulence. It is shown that the anomalous diffusion affects the parallel ion transport by giving rise to a new type of ...
, Helander, , Hazeltine, , Catto
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On the Electron Distribution Function in the Edge Plasma
Contributions to Plasma Physics, 2014AbstractIn this work we consider the electron kinetic equation and obtain electron velocity distributions and corresponding moments. This model represents a generalization of Chodura's [1] by inclusion of electron‐electron and electron inelastic collisions.
M. Gasteiger, D. Tskhakaya
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Edge issues in ITB plasmas in JET
Plasma Physics and Controlled Fusion, 2002This paper documents critical issues in internal transport barrier (ITB) plasmas in JET, namely the transition from type III to type I edge localized modes (ELMs), and the subsequent impact of large amplitude ELMs on the ITB. Benign type III ELMs are observed in ITB plasmas at input powers much larger (up to a factor 3) than the empirical threshold for
Sarazin, Y. +12 more
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