Abstract

Photoionization (PI) cross sections of the ground state 3s²3p ²P°_1/2 and metastable state 3s²3p ²P°_3/2 of Al-like Sc are investigated using the Dirac R-matrix method. The current energy levels and radiative transition rates are consistent with experimental results and previous theory. Our calculated ionization energies of the ground and metastable states are in accordance with the experimental values. The PI cross sections show good agreement between length and velocity forms. Partial-wave contributions to the total PI of ground and metastable states are discussed. Moreover, the PI cross sections are dominated by a large number of resonances from the Rydberg series of autoionizing states. In addition to providing data for the Opacity Project TOPbase, the present work promotes plasma simulation and diagnosis.

Graphical abstract

中文翻译：

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Al型Sc光电离截面的理论研究

摘要

使用Dirac R研究了Al类Sc的基态3 s ² 3 p  ² P ° _1/2和亚稳态3 s ² 3 p  ² P ° _3/2的光电离（PI）截面-矩阵方法。当前的能级和辐射跃迁速率与实验结果和先前的理论一致。我们计算的基态和亚稳态的电离能与实验值一致。PI横截面显示出长度和速度形式之间的良好一致性。讨论了部分波对基态和亚稳态的总PI的贡献。此外，PI截面主要由Rydberg系列自电离态的共振引起。除了为Opacity Project TOPbase提供数据外，本工作还促进了血浆模拟和诊断。

图形概要