Electron-impact ionization of the N atom

被引：6
|
作者：
Abdel-Naby, S. A. [1 ]
Pindzola, M. S. [1 ]
Pearce, A. J. [1 ]
Ballance, C. P. [1 ]
Loch, S. D. [1 ]
机构：
[1] Auburn Univ, Dept Phys, Auburn, AL 36849 USA
来源：
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2015年 / 48卷 / 02期
基金：
美国国家科学基金会;
关键词：
ionization; R-matrix; close-coupling; CLOSE-COUPLING METHOD; R-MATRIX; CROSS-SECTIONS; PROTON IMPACT; IONS; EXCITATION; SCATTERING; HE;
D O I：
10.1088/0953-4075/48/2/025203
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Electron-impact ionization cross sections for the ground and excited states of the N atom are calculated using the non-perturbative R-matrix with pseudo-states and time-dependent close-coupling (TDCC) methods, as well as the perturbative distorted-wave method. The TDCC and distorted-wave results for the 1s(2)2s(2)2p(2)3l (l = 0-2) excited configurations are much larger than for the ground configuration. In all cases the TDCC results are substantially lower than the distorted-wave results. The ionization cross section results will lead to a better understanding of moderately dense astrophysical and laboratory plasmas containing nitrogen.
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页数：7
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