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Title: Demonstration of Electron-Bernstein-Wave Heating in a Tokamak via O-X-B Double-Mode Conversion

Abstract

The first demonstration of electron-Bernstein-wave heating by double-mode conversion from the O to the X mode in an overdense H-mode tokamak plasma has been achieved in the Tokamak a Configuration Variable device. This technique overcomes the upper density limit experienced by conventional microwave heating. The sensitive dependence of the O-X mode conversion on the microwave launching direction has been verified experimentally, and localized power deposition consistent with theoretical predictions has been observed at densities well above the conventional cutoff.

Authors:
; ; ; ; ; ;  [1]; ;  [2]
  1. Ecole Polytechnique Federale de Lausanne (EPFL), Centre de Recherches en Physique des Plasmas, Association EURATOM, CH-1015 Lausanne (Switzerland)
  2. Max-Planck-Institut fuer Plasmaphysik, EURATOM Assoziation, D-17491 Greifswald (Germany)
Publication Date:
OSTI Identifier:
20951279
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 17; Other Information: DOI: 10.1103/PhysRevLett.98.175004; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BERNSTEIN MODE; ELECTRONS; H-MODE PLASMA CONFINEMENT; MICROWAVE HEATING; MODE CONVERSION; PLASMA; PLASMA WAVES; TOKAMAK DEVICES

Citation Formats

Mueck, A., Curchod, L., Camenen, Y., Coda, S., Goodman, T. P., Pochelon, A., Porte, L., Laqua, H. P., and Volpe, F.. Demonstration of Electron-Bernstein-Wave Heating in a Tokamak via O-X-B Double-Mode Conversion. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.175004.
Mueck, A., Curchod, L., Camenen, Y., Coda, S., Goodman, T. P., Pochelon, A., Porte, L., Laqua, H. P., & Volpe, F.. Demonstration of Electron-Bernstein-Wave Heating in a Tokamak via O-X-B Double-Mode Conversion. United States. doi:10.1103/PHYSREVLETT.98.175004.
Mueck, A., Curchod, L., Camenen, Y., Coda, S., Goodman, T. P., Pochelon, A., Porte, L., Laqua, H. P., and Volpe, F.. Fri . "Demonstration of Electron-Bernstein-Wave Heating in a Tokamak via O-X-B Double-Mode Conversion". United States. doi:10.1103/PHYSREVLETT.98.175004.
@article{osti_20951279,
title = {Demonstration of Electron-Bernstein-Wave Heating in a Tokamak via O-X-B Double-Mode Conversion},
author = {Mueck, A. and Curchod, L. and Camenen, Y. and Coda, S. and Goodman, T. P. and Pochelon, A. and Porte, L. and Laqua, H. P. and Volpe, F.},
abstractNote = {The first demonstration of electron-Bernstein-wave heating by double-mode conversion from the O to the X mode in an overdense H-mode tokamak plasma has been achieved in the Tokamak a Configuration Variable device. This technique overcomes the upper density limit experienced by conventional microwave heating. The sensitive dependence of the O-X mode conversion on the microwave launching direction has been verified experimentally, and localized power deposition consistent with theoretical predictions has been observed at densities well above the conventional cutoff.},
doi = {10.1103/PHYSREVLETT.98.175004},
journal = {Physical Review Letters},
number = 17,
volume = 98,
place = {United States},
year = {Fri Apr 27 00:00:00 EDT 2007},
month = {Fri Apr 27 00:00:00 EDT 2007}
}