LAUNCHER PERFORMANCE IN THE DIII-D SYSTEM
LAUNCHER PERFORMANCE IN THE DIII-D SYSTEM. The thermal performance of three different designs for the steerable mirrors on the ECH launchers installed in the DIII-D tokamak has been evaluated theoretically and experimentally. In each case the disruption forces must be minimized while providing a low loss reflecting surface. One design uses all Glidcop{reg_sign} material, but shaped so that the center is appreciably thicker than the edge. A second design is graphite with a molybdenum surface brazed to the graphite. The latest design is laminated copper/stainless steel construction with a thin copper reflecting surface. All three mirrors employ passive radiative cooling. The mirror temperatures are measured by resistance temperature devices (RTDs) which are attached at the back surfaces of the mirrors. The temperature increases are moderate for the laminated mirror, which has the best overall performance.
- Research Organization:
- General Atomics, San Diego, CA (United States)
- Sponsoring Organization:
- (US)
- DOE Contract Number:
- AC05-76OR00033
- OSTI ID:
- 814003
- Resource Relation:
- Conference: THIS IS A PREPRINT OF A PAPER TO BE PRESENTED AT THE 15TH TOPICAL CONFERENCE ON RADIO FREQUENCY POWER IN PLASMAS, MORAN, WY (US), 05/19/2003--05/21/2003; Other Information: PBD: 1 Jul 2003
- Country of Publication:
- United States
- Language:
- English
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