Using LIBS method to measure the abundance of triggered lightning channel plasma

doi:10.13295/j.cnki.issn1673-5196.2026.04.020

Abstract

Abstract: The spectrum of artificially triggered lightning channel plasma in Guangdong, China was obtained using slit free spectroscopy technology. The main components of the channel plasma were determined to be N II, O II, Fe II ions, neutral N I, and O I atoms through spectral analysis. Based on laser-induced breakdown spectroscopy (LIBS), the abundances of N II ions and Fe II ions were obtained by 68.4% and 3.6%, respectively. On this basis, based on the Saha ionization equilibrium equation of atoms and ions together with the concentration ratio of nitrogen and oxygen gases in the atmosphere, the abundances of N I, O I, and O II in the triggered lightning channel plasma were determined to be 4.4%, 6.0%, and 17.6%. The current measurement results are in good agreement with other experiments.

Key words: channel plasma of artificially triggered lightning, laser induced breakdown spectroscopy technology(LIBS), abundance of atoms and ions, electronic temperature, electron density

CLC Number:

O562.3

GAO Zhao-guang, SHEN Xiao-zhi, QI Qi, ZHANG Hua-ming, WANG Hua-ying, SANG Cui-cui. Using LIBS method to measure the abundance of triggered lightning channel plasma[J]. Journal of Lanzhou University of Technology, 2026, 52(4): 166-172.

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URL: https://journal.lut.edu.cn/EN/10.13295/j.cnki.issn1673-5196.2026.04.020

https://journal.lut.edu.cn/EN/Y2026/V52/I4/166

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