Recommended electron-impact excitation and ionization cross sections for Be II

被引：2

作者：

Dipti ^{[1
,2
]}

Bray, I. ^{[3
,4
]}

Fursa, D. V. ^{[3
,4
]}

Umer, H. ^{[3
,4
]}

Hill, C. ^{[1
]}

Ralchenko, Yu. ^{[5
]}

机构：

[1] IAEA, A-1400 Vienna, Austria

[2] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA

[3] Curtin Univ, Curtin Inst Computat, Perth, WA 6845, Australia

[4] Curtin Univ, Dept Phys & Astron, Perth, WA 6845, Australia

[5] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA

来源：

ATOMIC DATA AND NUCLEAR DATA TABLES | 2024年 / 156卷

基金：

澳大利亚研究理事会;

关键词：

RESONANCE TRANSITION; HYDROGEN SCATTERING; R-MATRIX; BERYLLIUM; IONS; BE+; POLARIZATION; COLLISIONS; RATES; C3+;

D O I：

10.1016/j.adt.2023.101634

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

An overview of the current status of electron -impact excitation and ionization cross sections for Be II is given and the recommended data sets for use in plasma modeling are presented. Accurate cross sections between the lowest 14 atomic terms of 1s2nl(n <= 5) configurations are calculated with the convergent close -coupling (CCC) method and compared with the available experimental and theoretical results. The recommended electronimpact excitation and ionization cross sections are represented by analytical fitting functions that preserve correct asymptotic behavior. Uncertainties in the recommended data sets are determined by assessing the accuracy of the target structures, the convergence in the subsequent collisional calculations, and the fitting method. They are well within 15 % for most of the transitions. The fitting coefficients for 91 excitation cross sections and 14 ionization cross sections are provided for use in plasma modeling simulations.

引用

页数：19

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