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Calculation of Alpha Particle Ripple Loss from the CFETR

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Abstract

The paper investigated fusion produced alpha particle ripple loss from the present CFETR (Chinese Fusion Engineering Test Reactor) physical design parameters. Guiding center code calculations of alpha particle ripple loss indicate 0.1 % particle loss for 10 MA, ITER-like equilibrium with pre-sawtooth alpha source profile, and 0.7 % with alpha redistribution modeled source profile after the sawtooth crash. The loss fraction is somewhat larger than the 8 MA ITER-like equilibrium. The calculations of reversed shear plasma showed the 5.6 % particle loss with a sawtooth broadened profile, in which lost particles are highly localized and the heat load is a big concern to plasma facing components. Potentially significant heat load of first wall from the ripple loss of alpha particles with reversed shear is one of critical issues for the steady state operation of CFETR. A comprehensive calculation need further detailed, self-consistent CFETR physical design.

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Acknowledgments

The authors would like to thank the Yuntao Song, Zhengping Luo, Guoqiang Li, and Xufeng Liu for their interest and help in this work, and the Center for Computational Science, Hefei Institute of Physical Science for its support. This work was supported by the National Natural Science Foundation of China (No. 11175211) and the National Magnetic Confinement Fusion Science Program of China (Contract No. 2013GB101000).

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Authors and Affiliations

  1. School of Physics and Material Science, Anhui University, Hefei, 230039, China

    Baolong Hao

  2. Institute of Plasma Physics, Chinese Academy of Science, Hefei, 230031, China

    Baolong Hao, Bin Wu, Jingfang Wang, Hao Li, Ji Wang & Chundong Hu

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  1. Baolong Hao
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  2. Bin Wu
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  3. Jingfang Wang
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  4. Hao Li
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Correspondence to Bin Wu.

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Hao, B., Wu, B., Wang, J. et al. Calculation of Alpha Particle Ripple Loss from the CFETR. J Fusion Energ 34, 659–665 (2015). https://doi.org/10.1007/s10894-015-9864-0

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