A folded waveguide coupler for ion cyclotron heating
A new type of waveguide coupler for plasma heating in the ion cyclotron range of frequencies is described. The coupler consists of a series of interleaved metallic vanes within a rectangular enclosure analogous to a wide rectangular waveguide that has been ''folded'' several times. At the mouth of the coupler, a plate is attached which contains coupling apertures in each fold or every other fold of the waveguide, depending upon the wavenumber spectrum desired. This plate serves primarily as a wave field polarizer that converts coupler fields to the polarization of the fast magnetosonic wave within the plasma. Theoretical estimates indicate that the folded waveguide is capable of high-efficiency, multimegawatt operation into a plasma. Bench tests have verified the predicted field structure within the waveguide in preparation for high-power tests on the Radio Frequency Test Facility at the Oak Ridge National Laboratory.
- Research Organization:
- McDonnell Douglas Astronautics Co., Dept. E451, P.O. Box 516, St. Louis, MO 63166
- OSTI ID:
- 6832973
- Report Number(s):
- CONF-860652-
- Journal Information:
- Fusion Technol.; (United States), Journal Name: Fusion Technol.; (United States) Vol. 10:3; ISSN FUSTE
- Country of Publication:
- United States
- Language:
- English
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A folded waveguide coupler for plasma heating in the ion cyclotron range of frequencies
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Related Subjects
700205* -- Fusion Power Plant Technology-- Fuel
Heating
& Injection Systems
APERTURES
BENCH-SCALE EXPERIMENTS
COUPLING
EFFICIENCY
HEATING
HIGH-FREQUENCY HEATING
HYDROMAGNETIC WAVES
ICR HEATING
MAGNETOACOUSTIC WAVES
NATIONAL ORGANIZATIONS
OPENINGS
ORNL
PLASMA HEATING
PLASMA WAVES
POLARIZATION
TEST FACILITIES
US AEC
US DOE
US ERDA
US ORGANIZATIONS
VANES
WAVEGUIDES