Blue core discharge characteristics in an inhomogeneous magnetic field helicon plasma coupled with multi-turn solenoid antenna

Authors

  • Meng Sun Laboratory of Plasma Physics and Materials, Beijing Institute of Graphic Communication, Beijing 102600, China
  • Xianyi Yin Laboratory of Plasma Physics and Materials, Beijing Institute of Graphic Communication, Beijing 102600, China
  • Tianliang Zhang Department of Physics, The University of Auckland, Auckland 1010, New Zealand
  • Renze Wei Laboratory of Plasma Physics and Materials, Beijing Institute of Graphic Communication, Beijing 102600, China
  • Zhongwei Liu Laboratory of Plasma Physics and Materials, Beijing Institute of Graphic Communication, Beijing 102600, China
  • Haibao Zhang Laboratory of Plasma Physics and Materials, Beijing Institute of Graphic Communication, Beijing 102600, China; School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China
Article ID: 313
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DOI:

https://doi.org/10.18686/cest313

Keywords:

helicon plasma; discharge mode; blue core; coupled antenna; power deposition

Abstract

A four-turn solenoid antenna has been used to produce high-density helicon plasma in an inhomogeneous magnetic field. Different magnetic field needed for the helicon plasma discharge can be realized easily by moving the axial positions of the solenoid antenna. Three different axial positions, e.g., 6 cm, 12 cm, and 18 cm, had been selected to fix the four-turn solenoid antenna; correspondingly, the magnetic field intensities were 7.69 G, 30.77 G, and 123.08 G, respectively. It was found that the blue core phenomenon appeared at around 300 W and an antenna position of 18 cm. The plasma density can be up to 2 × 1019 m−3 with an antenna coupling efficiency of 90% at 600 W in the blue core. The power coupling mechanism has been discussed based on the helicon plasma discharge diagnostics.

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Published

2025-04-10

How to Cite

Sun, M., Yin, X., Zhang, T., Wei, R., Liu, Z., & Zhang, H. (2025). Blue core discharge characteristics in an inhomogeneous magnetic field helicon plasma coupled with multi-turn solenoid antenna. Clean Energy Science and Technology, 3(2), 313. https://doi.org/10.18686/cest313

Issue

Vol. 3 No. 2 (2025): Recent Advances in Plasma Science and Technology for Energy and Environmental Applications

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Article

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Copyright (c) 2025 Author(s)

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This work is licensed under a Creative Commons Attribution 4.0 International License.

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