Recent Results from a Folded Waveguide ICRF Antenna Development Project
Preliminary high power tests have been performed on a folded waveguide (FWG) ICRF launcher with a curved coupling faceplate installed. Two alternative faceplate configurations have been built and tested at low power and will be tested at high power in the near future. The new designs include a dipole plate which provides a 0-p launch spectrum and a more transparent, flexible monopole face plate configuration. This FWG design is a 12 vane, 57 MHz design with a 0.31 m square cross section. The FWG can be installed with either fast wave or ion-Bernstein wave polarization and can also be retracted behind a vacuum isolation valve. A 1 x 4 FWG array optimized for fast wave current drive on DIII-D has been conceptualized.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC05-96OR22464
- OSTI ID:
- 9836
- Report Number(s):
- ORNL/CP-104347; AT 50 15 01 0; ON: DE00009836
- Resource Relation:
- Conference: 13th Topical Conference on Applications of Radio Frequency Power to Plasmas, New York, NY, April 12-14, 1999
- Country of Publication:
- United States
- Language:
- English
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Initial results from a folded waveguide ICRF antenna development project
Initial results from a folded waveguide ICRF antenna development project