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Volume 37 Issue 1
Apr.  2013
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Article Navigation >  LASER TECHNOLOGY  > 2013 >  37(1): 93-96

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Measurement of brass plasma parameters based on laser-induced breakdown spectroscopy

  • 1.

    Department of Physics and Opto-Electronic Engineering, Xi'an University of Arts and Science, Xi'an 710065, China;

  • 2.

    Department of Photo-Electric Technology, School of Electronic Engineering, Xi'an University of Posts & Telecommunications, Xi'an 71012

  • Received Date: 2012-05-30
    Accepted Date: 2012-06-18
  • In order to minimize the measurement errors,an improved iterative Boltzmann plot method and Lorentz fitting method were used.The electron temperature Te in brass plasma was 6051K with the iterative calculation,and the electron density Ne of 3.31017cm-3 was inferred from the Stark broadened profile of Cu Ⅰ 324.75mm.The results show that the correlation coefficient is increased from 0.73 to 0.98 after 9 iterations in calculation of Te,and the correlation coefficient increases from 0.90 to 0.96 after 15 averaged numbers in calculation of Ne.The results are helpful to accurately calculate the parameters of plasma.
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Measurement of brass plasma parameters based on laser-induced breakdown spectroscopy

  • 1. Department of Physics and Opto-Electronic Engineering, Xi'an University of Arts and Science, Xi'an 710065, China;
  • 2. Department of Photo-Electric Technology, School of Electronic Engineering, Xi'an University of Posts & Telecommunications, Xi'an 71012
  • Received Date: 2012-05-30
  • Accepted Date: 2012-06-18
  • Available Online: 2013-01-25

Abstract: In order to minimize the measurement errors,an improved iterative Boltzmann plot method and Lorentz fitting method were used.The electron temperature Te in brass plasma was 6051K with the iterative calculation,and the electron density Ne of 3.31017cm-3 was inferred from the Stark broadened profile of Cu Ⅰ 324.75mm.The results show that the correlation coefficient is increased from 0.73 to 0.98 after 9 iterations in calculation of Te,and the correlation coefficient increases from 0.90 to 0.96 after 15 averaged numbers in calculation of Ne.The results are helpful to accurately calculate the parameters of plasma.

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