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Separate calculations of the two currents driven by electron cyclotron waves

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Abstract

The expressions of both the Fisch–Boozer and Ohkawa currents are constructed, and a feasible and efficient calculation method is given. Simulation results of the Fokker–Plank code verify the expressions and the calculation method. We calculate and separate the Ohkawa and Fisch–Boozer currents on a single magnetic flux surface of the off-axis position. The Ohkawa current drive mechanism can be made dominant over the Fisch–Boozer mechanism to achieve a high driven current. This can be done by adjusting the parameters of electron cyclotron waves to make the power deposited in the off-axis region of the low-field side.

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Acknowledgements

This work was supported by the National Key R&D Program of China, Grant Number: 2017YFE0302000; the National Natural Science Foundations of China Grant Number: 12075114; the Hunan Nuclear Fusion International Science and Technology Innovation Cooperation Base, Grant Number: 2018WK4009; the Key Laboratory of Magnetic Confinement Nuclear Fusion Research in Hengyang, Grant Number: 2018KJ108; and the Natural Science Foundation of Hunan Province, Grant Number: 2020JJ4075.

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Authors and Affiliations

  1. School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China

    Sheng Deng & Xue-yu Gong

  2. School of Environmental Protection and Safety Engineering, University of South China, Hengyang, 421001, China

    Ping-wei Zheng

  3. College of Nuclear Equipment and Nuclear Engineering, Yantai University, Yantai, 264005, China

    Xing-qiang Lu

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  1. Sheng Deng
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  2. Ping-wei Zheng
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Deng, S., Zheng, Pw., Gong, Xy. et al. Separate calculations of the two currents driven by electron cyclotron waves. J. Korean Phys. Soc. 81, 739–749 (2022). https://doi.org/10.1007/s40042-022-00586-9

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  • DOI: https://doi.org/10.1007/s40042-022-00586-9

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