1. Home page
  2. Search

Electron-cyclotron wave scattering by edge density fluctuations in ITER

This item is provided by the institution :
National Technical University of Athens   

Repository :
Digital Library of National Technical University of Athens | Dspace@NTUA   

see the original item page
in the repository's web site and access all digital files if the item*



Electron-cyclotron wave scattering by edge density fluctuations in ITER (EN)
Isliker, H (EN)
Vlahos, L (EN)
Strintzi, D (EN)
Tsironis, C (EN)
Peeters, AG (EN)
Chatziantonaki, I (EN)
journalArticle (EN)
2014-03-01T01:30:20Z
2009 (EN)
The effect of edge turbulence on the electron-cyclotron wave propagation in ITER is investigated with emphasis on wave scattering, beam broadening, and its influence on localized heating and current drive. A wave used for electron-cyclotron current drive (ECCD) must cross the edge of the plasma, where density fluctuations can be large enough to bring on wave scattering. The scattering angle due to the density fluctuations is small, but the beam propagates over a distance of several meters tip to the resonance layer and even small angle scattering leads to a deviation of several centimeters at the deposition location. Since the localization of ECCD is crucial for the control of neoclassical tearing modes, this issue is of great importance to the ITER design. The wave scattering process is described oil the basis of a Fokker-Planck equation, where the diffusion coefficient is calculated analytically as well as computed numerically using a ray tracing code. (C) 2009 American Institute of Physics. [doi:10.1063/1.3264105] (EN)
Physics, Fluids & Plasmas (EN)
Resonance layers (EN)
Electron cyclotron current drive (EN)
Electron cyclotron resonance (EN)
Scattering angles (EN)
Edge densities (EN)
Electron beams (EN)
ITER design (EN)
Electromagnetic waves (EN)
Localized heating (EN)
Fokker Planck equation (EN)
Density fluctuation (EN)
Ray-tracing codes (EN)
Neoclassical tearing modes (EN)
Edge turbulence (EN)
Plasma waves (EN)
Electromagnetic wave scattering (EN)
Cyclotron radiation (EN)
Electron cyclotrons (EN)
Small angle scattering (EN)
Diffusion Coefficients (EN)
Cyclotrons (EN)
Experimental reactors (EN)
Wave scattering (EN)
Fusion reactions (EN)
Current drives (EN)
Physics of Plasmas (EN)
English
AMER INST PHYSICS (EN)
National Technical University of Athens
Digital Library of National Technical University of Athens | Dspace@NTUA
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
Ιδρυματικό Αποθετήριο
Δημοσιεύσεις μελών Δ.Ε.Π. σε περιοδικά



*Institutions are responsible for keeping their URLs functional (digital file, item page in repository site)