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The Erosion Investigation of Sn-CPS Under High Flux Plasma Environment in SCU-PSI

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Abstract

The erosion behavior of liquid tin (Sn) under bias voltage system assisted Ar plasma environment in SCU-PSI was investigated. Optical emission spectroscopy was applied to detect and characterize the emission line of tin spectrum. The result showed that the loss part of tin atom in the plasma beam was very limited. The temperature-dependent abnormal enhanced erosion phenomenon was observed during the plasma irradiation process, and superficial adsorbed atoms model was employed to depict the inherent physical process. The obtained surface binding energy fitted well to our experiment results and other reports. In addition, the incident energy-dependent enhanced erosion behavior was also discussed, obvious tiny tin droplets could be observed separating from capillary porous system at the bias voltage of 25 V, which would be the incident plasma limit value for our experimental setup.

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Acknowledgements

This work was supported by the Fundamental Research Funds for the Central Universities (Project approval No. 2019SCU12072), the China Postdoctoral Science Foundation (Project approval No. 2019M663487), the National Natural Science Foundation of China (Project approval Nos. 11875198, 11905151) and the Major Research Plan of National Natural Science Foundation of China (Grant No. 91426303). Kun Zhang is grateful to the Fundamental Research Funds for the Central Universities for its financial support.

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Authors and Affiliations

  1. Institute of Nuclear Science and Technology, Sichuan University, Chengdu, 610064, China

    Zongbiao Ye, Xiaochun Ma, Pingni He, Kun Zhang & Fujun Gou

  2. Nuclear Power Institute of China, Chengdu, 610005, China

    Xiaochun Ma

  3. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China

    Andong Wu

  4. Institute for Advanced Study, Chengdu University, Chengdu, 610106, China

    Zhijun Wang & Qiang Yan

  5. Institute of Atomic and Molecule Physics, Sichuan University, Chengdu, 610064, China

    Jianjun Wei

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  1. Zongbiao Ye
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Correspondence to Kun Zhang or Fujun Gou.

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Ye, Z., Ma, X., Wu, A. et al. The Erosion Investigation of Sn-CPS Under High Flux Plasma Environment in SCU-PSI. J Fusion Energ 39, 86–91 (2020). https://doi.org/10.1007/s10894-020-00239-4

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