Initial results from the multi-megawatt 110 GHz ECH system for the DIII-D tokamak [electronic resource]
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| Online Access: |
Online Access |
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| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Dept. of Energy. Office of Energy Research ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
1997.
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| Abstract: | The first of three MW-level 110 GHz gyrotrons was operated into the DIII-D tokamak in late 1996. Two additional units will be commissioned during 1997. Each gyrotron is connected to the tokamak by a low loss, windowless, evacuated transmission line using circular corrugated waveguide carrying the HE₁₁ mode. The microwave beam spot is well focused with a spot size of approximately 6 cm and can be steered poloidally from the center to the outer edge of the plasma. The initial operation with about 0.5 MW delivered to a low density plasma for 0.5 s showed good central electron heating, with peak temperature in excess of 10 keV. The injection was 19{degree} off perpendicular for current drive. |
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| Item Description: | Published through the Information Bridge: DOE Scientific and Technical Information. 04/01/1997. "GA--A22576" "CONF-9704102--8" "DE97007604" 12. topical conference on radio frequency power in plasmas, Savannah, GA (United States), 1-3 Apr 1997. Austin, M.E.; Ponce, D.; Luce, T.C.; Callis, R.W.; Prater, R.; Lohr, J.; ÒNeill, R.C. General Atomics, San Diego, CA (United States) Texas Univ., Austin, TX (United States) |
| Physical Description: | 8 p. |