Feasibility study of microwave electron heating on the C-2 field-reversed configuration device

Journal Article · Thu Dec 10 00:00:00 EST 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4936545· OSTI ID:22496231

Yang, Xiaokang; Ceccherini, Francesco; Dettrick, Sean; Binderbauer, Michl ^[1]; Koehn, Alf ^[2]; Petrov, Yuri ^[3]

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1. Tri Alpha Energy, Inc., P.O. Box 7010, Rancho Santa Margarita, CA 92688 (United States)
2. IGVP, University of Stuttgart, Pfaffenwaldring 31, 70569 Stuttgart (Germany)
3. CompX, P.O. Box 2672, Del Mar, CA 92014 (United States)

Different microwave heating scenarios for the C-2 plasmas have been investigated recently with use of both the Genray ray-racing code and the IPF-FDMC full-wave code, and the study was focused on the excitation of the electron Bernstein wave (EBW) with O-mode launch. For a given antenna position on C-2 and the fixed 2D plasma density and equilibrium field profiles, simulations have been done for six selected frequencies (2.45 GHz, 5 GHz, 8 GHz, 18 GHz, 28 GHz, and 50 GHz). Launch angles have been optimized for each case in order to achieve high coupling efficiencies to the EBW by the O-X-B mode conversion process and high power deposition. Results show that among those six frequencies, the case of 8 GHz is the most promising scenario, which has both high mode conversion efficiency (90%) and the relatively deeper power deposition.

• OSTI ID: 22496231
• Journal Information: AIP Conference Proceedings, Vol. 1689, Issue 1; Conference: 21. topical conference on radio frequency power in plasmas, Lake Arrowhead, CA (United States), 27-29 Apr 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANTENNAS
BERNSTEIN MODE
DEPOSITION
EFFICIENCY
ELECTRONS
EXCITATION
FEASIBILITY STUDIES
FIELD-REVERSED THETA PINCH DEVICES
GHZ RANGE 01-100
MICROWAVE HEATING
MICROWAVE RADIATION
MODE CONVERSION
PLASMA DENSITY
PLASMA WAVES
SIMULATION
TWO-DIMENSIONAL CALCULATIONS