CIV共振谱线的电子碰撞展宽的理论计算

Electron impact broadening of CIV 2s^2S-2p^2P^0 resonance line

使用Ｒ－矩阵方法，利用碰撞近似和密耦理论，计算了确定ＣＩＶ ２ｓ Ｓ－２ｐ２Ｐ共振 谱线的碰撞参数，并由此得到了在电子密度为１０ｃｍ－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。

Parameters determining the widths and shifts of the CIV lines 2s2S-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 semiclassical calculations and good agreements are found. The experimental with is as two times as that of theoretical Stark.