Evaluation of electron cyclotron current drive performance for CFETR

Wei WEI (韦维); Xiaojie WANG (王晓洁); Miaohui LI (李妙辉); Bojiang DING (丁伯江)

doi:10.1088/2058-6272/ab0841

Plasma Science and Technology > 2019 > 21(6): 65101-065101. > DOI: 10.1088/2058-6272/ab0841

Wei WEI (韦维), Xiaojie WANG (王晓洁), Miaohui LI (李妙辉), Bojiang DING (丁伯江). Evaluation of electron cyclotron current drive performance for CFETR[J]. Plasma Science and Technology, 2019, 21(6): 65101-065101. DOI: 10.1088/2058-6272/ab0841

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Evaluation of electron cyclotron current drive performance for CFETR

¹ Hefei University of Technology, Hefei 230601, People’s Republic of China
² Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China

Funds: This work is supported by National Key R&D Program of China (Nos. 2016YFA0400600, 2016YFA0400602, 2016YFA0400603, 2017YFE0300500 and 2017YFE0300503), the National Magnetic Confinement Fusion Science Program of China (No. 2015GB102003), and the National Natural Science Foundation of China (Nos. 11675214, 11775259).

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Received Date: September 02, 2018

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Abstract

Abstract

A number of simulations of electron cyclotron current drive (ECCD) have been carried out for the China Fusion Engineering Test Reactor (CFETR) using the C3PO/LUKE code to investigate the performance and optimize schemes of power injection for the design of the launcher. The operation ranges of the toroidal field, cutoff density, and resonance layer location are given at different source frequencies in CFETR phases I and II. A comparison of ECCD performance between the horizontal and top port launch is presented. ECCD efficiency (r_EC) estimated for CFETR phase I is r_EC=0.21 for top port launch and r_EC=0.20 for horizontal port launch. The ECCD efficiency and second-harmonic absorption is calculated at different wave frequencies (from 170 to 230 GHz) in CFETR phase II. It is found that the highest driven efficiency is obtained at 210 GHz with the toroidal field of 6.5 T, and the second-harmonic absorption increases rapidly with the increase of frequency.
- CFET,
- electron cyclotron current drive,
- current drive efficiency

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References

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Evaluation of electron cyclotron current drive performance for CFETR