Design of a finline antenna for current drive in TST-2

O. Watanabe,Y. Ko,N. Tsujii,Y. Takase,A. Ejiri,K. Shinohara,Y. Peng,K. Iwasaki,I. Yamada,G. Yatomi,C.P. Moeller,Y.-K.M. Peng

Fusion Engineering and Design（2022）

Cited 2|Views18

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Abstract

•A novel antenna is designed for plasma current drive using lower hybrid wave.•The antenna consists of a periodic fin array and was named finline antenna.•The wave propagation on fin array is used the electromagnetic surface wave.•The propagation wave on the fin array and radiation wave in the plasm is simulated by the COMSOL simulation code.•At perform the antenna operation test to the TST-2 plasma, increase of the X-ray was confirmed.

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Key words

Periodic slow wave structure,Electromagnetic surface wave,Lower-hybrid current drive,Spherical tokamak

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