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2004 Volume 13 Issue 6
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Liang Gui-Yun, Bian Xia, Zhao Gang. 2004: Emission spectra simulation of calcium plasmas in non-local thermodynamic equilibrium, Chinese Physics B, 13(6): 891-897.
Citation: Liang Gui-Yun, Bian Xia, Zhao Gang. 2004: Emission spectra simulation of calcium plasmas in non-local thermodynamic equilibrium, Chinese Physics B, 13(6): 891-897.
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Emission spectra simulation of calcium plasmas in non-local thermodynamic equilibrium

  • National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China

  • Available Online: 30/06/2004
  • Fund Project: the Special Foundation for State Major Basic Research Programme of China(Grant G1999075406)%the National Natural Science Foundation of China(Grant 10373014)
  • We use previous high-quality experimental spectra to test the accuracy of atomic data and the validity of the collisional-radiative (CR) model used in this paper. The synthetic spectrum with electron temperature log Te (K)=6.745 and electron density ne=6.0×1013 cm-3, which almost reproduces the experimental spectra, is presented. Nearly all the features of the experimental spectra were identified. The results of the CR modelling for the emission spectra of calcium plasmas all agree well with the measured spectral line intensities within the experimental error for most of the lines. Furthermore, we make the electron temperature diagnostic through the synthetic spectrum and population fractions of every ionization state as a function of charge state at different electron temperatures, as well as the electron density diagnostic through the intensity ratios of two lines of Be-like calcium and three lines of C-like calcium. A good agreement between the calculated values and the measured ones is found.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Emission spectra simulation of calcium plasmas in non-local thermodynamic equilibrium

  • Available Online: 30/06/2004

Abstract: We use previous high-quality experimental spectra to test the accuracy of atomic data and the validity of the collisional-radiative (CR) model used in this paper. The synthetic spectrum with electron temperature log Te (K)=6.745 and electron density ne=6.0×1013 cm-3, which almost reproduces the experimental spectra, is presented. Nearly all the features of the experimental spectra were identified. The results of the CR modelling for the emission spectra of calcium plasmas all agree well with the measured spectral line intensities within the experimental error for most of the lines. Furthermore, we make the electron temperature diagnostic through the synthetic spectrum and population fractions of every ionization state as a function of charge state at different electron temperatures, as well as the electron density diagnostic through the intensity ratios of two lines of Be-like calcium and three lines of C-like calcium. A good agreement between the calculated values and the measured ones is found.

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