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A xenon collisional-radiative model applicable to electric propulsion devices: I. Calculations of electron-impact cross sections for xenon ions by the Dirac B-spline R-matrix method
Plasma Sources Science and Technology ( IF 3.3 ) Pub Date : 2019-10-06 , DOI: 10.1088/1361-6595/ab3125
Yang Wang 1 , Yan-Fei Wang 2 , Xi-Ming Zhu 2 , Oleg Zatsarinny 3 , Klaus Bartschat 3
Affiliation  

A fully relativistic Dirac B-spline R-matrix (DBSR) method is applied to calculate the oscillator strengths and electron-impact excitation cross sections involving the 5s 2 5p 5 , 5s5p 6 , 5p 4 6s, 5p 4 5d, 5p 4 6p, and 5p 4 7s states of a Xe + ion. A fully relativistic approach is necessary for this problem, since the spin–orbit coupling is of the same order as electron correlations in the outer shells of Xe + . Also, there is a complex open-shell structure with strong term dependence in the one-electron orbitals. The oscillator strengths are also calculated and agree well with available experimental measurements. We select some important excitation cross sections out of the ground, metastable, and quasi-metastable states of Xe + for the collisional-radiative (CR) model to be discussed and analyzed. The present paper is the first one of a series of studies on a CR model of xenon ions in ...

中文翻译:

适用于电力推进装置的氙碰撞辐射模型:I.用狄拉克B样条R矩阵方法计算氙离子的电子碰撞截面

应用了完全相对论的狄拉克B样条R矩阵(DBSR)方法来计算振荡器强度和涉及5s 2 5p 5,5s5p 6,5p 4 6s,5p 4 5d,5p 4 6p, Xe +离子的5p 4 7s状态。由于自旋轨道耦合与Xe +外壳中的电子相关性具有相同的阶数,因此需要一个完全相对论的方法来解决这个问题。另外,在单电子轨道上存在具有强烈的项相关性的复杂的开壳结构。还可以计算出振荡器的强度,并与可用的实验测量结果非常吻合。我们从Xe +的地基,亚稳态和准转移状态中选择了一些重要的激发截面,以用于碰撞辐射(CR)模型进行讨论和分析。
更新日期:2019-10-07
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