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Oct 13 – 18, 2014
Hotel Park Inn Pribaltiyskaya
Europe/Moscow timezone

Theoretical Analysis of the ICRH Antenna’s Impedance Matching for ELMy Plasmas on EAST

Oct 15, 2014, 8:30 AM
4h
Green 8-9 (Hotel Park Inn Pribaltiyskaya)

Green 8-9

Hotel Park Inn Pribaltiyskaya

Saint Petersburg, Russian Federation
Poster Poster 3

Speaker

Prof. XUEYU GONG (Southwestern Institute of Physics)

Description

A well-optimized design of an ion cyclotron resonance heating (ICRH) antenna is very important for steady-state plasma heating with high radio frequency (RF) power of several tens of megawatts. However, a sharp decrease in the coupling RF power because of impedance mismatch of ICRH system is an issue that must be resolved for present-day fusion reactors and International Thermonuclear Experimental Reactor. This paper has theoretically analyzed the ICRH antenna’s impedance matching for ELMy plasmas on experimental advanced superconducting tokamak (EAST) by the transmission line theory. The results indicate that judicious choice of the optimal feeder location is found useful for adjustable capacitors’ tolerance to the variations of the antenna input impedance during edge-localized mode (ELM) discharge, which is expected to be good for the design of ICRH antenna system and for real-time feedback control during ELM discharge on EAST.
Country or International Organisation China
Paper Number TH/P3-13

Primary author

Prof. XUEYU GONG (Southwestern Institute of Physics)

Co-authors

Dr DAN DU (Department of Mathematics and Physics, University of South China) Dr JUN YU (Department of Mathematics and Physics, University of South China) Mr PINGWEI ZHENG (Department of Nuclear Science and Technology, University of South China) Dr ZHENHUA WANG (Department of Nuclear Science and Technology, University of South China)

Presentation materials

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