CIV共振谱线的电子碰撞展宽的理论计算
Electron impact broadening of CIV CIV 2s 2S-2p2P0 resonance line
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摘要: 使用R-矩阵方法，利用碰撞近似和密耦理论，计算了确定CIV 2s2S-2p2P0共振谱线的碰撞参数，并由此得到了在电子密度为1017cm-3 的条件下，共振谱线的线宽和线移随温度的变化关系。计算得到的线宽与半经典的理论计算值符合得比较好，但大约只有实验线宽的一半。Abstract: Parameters determining the widths shifts of the CIV lines CIV 2s 2S-2p2P0 are calculated by using the impact approximation and accurate close-coupling theory for the (CIV+e) collision problem. Line widths and shifts are calculated according to the derived parameters. The calculated line widths are compared with the semi-classical calculations and good agreements are found. The discrepancy between the experimental and theoretical Stark widths is almost a factor of 2.
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Key words:
- r-matrix /
- civ ion /
- electron impact broadening /
- line width and shift
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