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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
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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