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Electron transfer from atomic hydrogen to multiply-charged nuclei at intermediate and high energies
Atomic Data and Nuclear Data Tables ( IF 2.7 ) Pub Date : 2021-02-25 , DOI: 10.1016/j.adt.2021.101417
D. Delibašić , N. Milojević , I. Mančev , Dž. Belkić

We report on theoretical total cross sections for electron capture from the ground state of atomic hydrogen H(1s) by fast multiply-charged nuclei H+, He2+, Li3+, Be4+, B5+, C6+, N7+, O8+ and F9+. The prior form of the boundary-corrected continuum intermediate states (BCIS) method is used. For a single fixed initial ground-state (i=1s), comprehensive computations are carried out for a sequence of the transitions to the final state (n,l,m) with 1nnmax, including all the energy degenerate sub-levels (lml,0ln1). The maximal quantum number nmax is respectively set to 4 for H+, He2+ and Li3+, to 5 for Be4+, to 6 for B5+, as well as to 7 for C6+, N7+, O8+ and F9+. The reported nine tables provide these state-selective cross sections (Qif) and their state-summed counterparts (QΣ). The cross sections QΣ for the sum over all the final states are evaluated using the exact results of Qif for nnmax and the scaled cross sections for n>nmax. The scaling is based on the Oppenheimer n3 rule. In addition to these tables, at the same impact energies 20–3000 keV/amu, the cross sections from the BCIS method are presented graphically in eight figures for the nuclei Li3+,Be4+,B5+,C6+,N7+,O8+ and F9+. This complements our recently published cross sections for electron capture by protons (H+) and alpha particles (He2+) from H(1s). In the present figures, whenever available, the corresponding experimental data are compared with our results for QΣ. Also included in these comparisons are the corresponding results for QΣ from the continuum distorted wave (CDW) method. The cross sections tabulated here can be used in versatile applications ranging from plasma physics and astrophysics through fusion research to ion therapy.



中文翻译:

电子从原子氢转移到中能和高能的多电荷核

我们报告了从氢原子基态捕获电子的理论总截面 H1个s 通过快速倍增核 H+ 2个+ 3+ 4+ 5+ C6+ ñ7+ Ø8+F9+使用边界校正的连续统中间态(BCIS)方法的先验形式。对于单个固定的初始基态一世=1个s 对过渡到最终状态的序列进行了全面的计算 ñ1个ññ最大限度 包括所有能量退化子级别 -0ñ-1个 最大量子数 ñ最大限度 分别设置为4 H+ 2个+3+ 到5 4+ 到6 5+ 以及7 C6+ ñ7+ Ø8+F9+ 报告的9个表格提供了这些状态选择的横截面(一世F)和其状态求和的对应项(Σ)。横截面Σ 对于所有最终状态的总和,将使用的精确结果进行评估 一世F 为了 ññ最大限度 和比例横截面 ñ>ñ最大限度 缩放比例基于Oppenheimer ñ-3规则。除了这些表格以外,在相同的冲击能量20–3000 keV / amu时,BCIS方法的横截面以图形形式以八位图形显示在原子核上3+4+5+C6+ñ7+Ø8+F9+ 这补充了我们最近发布的质子捕获电子的截面(H+)和alpha粒子(2个+) 从 H1个s 在本图中,只要有可用的数据,就会将相应的实验数据与我们的结果进行比较 Σ 这些比较中还包括 Σ从连续畸变波(CDW)方法中得出。此处列出的横截面可用于多种应用,从等离子物理学和天体物理学到聚变研究再到离子治疗。

更新日期:2021-04-04
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