Traveling wave antenna for fast wave heating and current drive in tokamaks [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 1995. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- 36 pages : digital, PDF file
- Additional Creators:
- General Atomic Company, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
- The traveling wave antenna for heating and current drive in the ion cyclotron range of frequencies is shown theoretically to have loading and wavenumber spectrum which are largely independent of plasma conditions. These characteristics have been demonstrated in low power experiments on the DIII-D tokamak, in which a standard four-strap antenna was converted to a traveling wave antenna through use of external coupling elements. The experiments indicate that the array maintains good impedance matching without dynamic tuning during abrupt changes in the plasma, such as during L- to H-mode transitions, edge localized mode activity, and disruptions. An analytic model was developed which exhibits the features observed in the experiments. Guidelines for the design of traveling wave antennas are derived from the validated model.
- Published through SciTech Connect., 07/01/1995., "ga-a--21993", "DE95016480", and Phelps, D.A.; Ikezi, H.
- Funding Information:
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