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.

引用

收藏

页数：7

相关论文

共 30 条

[1] Electron-impact ionization of the C atom [J].

Abdel-Naby, Sh. A. ;

Ballance, C. P. ;

Lee, T. G. ;

Loch, S. D. ;

Pindzola, M. S. .

PHYSICAL REVIEW A, 2013, 87 (02)

[2] Lithium erosion experiments and modelling under quiescent plasma conditions in DIII-D [J].

Allain, JP ;

Whyte, DG ;

Brooks, JN .

NUCLEAR FUSION, 2004, 44 (05) :655-664

[3]

[Anonymous], 1977, The Hartree-Fock Method for Atoms: A Numerical Approach

[4] On the effects of the two-body non-fine-structure operators of the Breit-Pauli Hamiltonian [J].

Badnell, NR .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1997, 30 (01) :1-11

[5] Electron-impact excitation of neon: a pseudo-state convergence study [J].

Ballance, CP ;

Griffin, DC .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2004, 37 (14) :2943-2957

[6] Electron-atom scattering at low and intermediate energies using a pseudo-state R-matrix basis [J].

Bartschat, K ;

Hudson, ET ;

Scott, MP ;

Burke, PG ;

Burke, VM .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1996, 29 (01) :115-123

[7] RMATRX1 - BELFAST ATOMIC R-MATRIX CODES [J].

BERRINGTON, KA ;

EISSNER, WB ;

NORRINGTON, PH .

COMPUTER PHYSICS COMMUNICATIONS, 1995, 92 (2-3) :290-420

[8] Electrons and photons colliding with atoms development and application of the convergent close-coupling method [J].

Bray, I ;

Fursa, DV ;

Kheifets, AS ;

Stelbovics, AT .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2002, 35 (15) :R117-R146

[9] MEASUREMENTS OF ELECTRON-IMPACT IONIZATION CROSS-SECTIONS OF HE, C, O AND N ATOMS [J].

BROOK, E ;

HARRISON, MFA ;

SMITH, ACH .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1978, 11 (17) :3115-3132

[10] Electron-impact ionization of all ionization stages of beryllium [J].

Colgan, J ;

Loch, SD ;

Pindzola, MS ;

Ballance, CP ;

Griffin, DC .

PHYSICAL REVIEW A, 2003, 68 (03) :9