Absolute cross sections for near-threshold electron-impact excitation of the 2s 2S→2p 2P transition in C3+

被引：17

作者：

Bannister, ME ^{[1
]}

Chung, YS

Djuric, N

Wallbank, B

Woitke, O

Zhou, S

Dunn, GH

Smith, ACH

机构：

[1] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA

[2] Univ Colorado, Joint Inst Lab Astrophys, Boulder, CO 80309 USA

[3] Natl Inst Stand & Technol, Boulder, CO 80309 USA

[4] UCL, London WC1E 6BT, England

[5] Chungnam Natl Univ, Dept Phys, Daejon 305764, South Korea

[6] St Francis Xavier Univ, Dept Phys, Antigonish, NS B2G 2W5, Canada

来源：

PHYSICAL REVIEW A | 1998年 / 57卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.57.278

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Absolute total cross sections for electron-impact excitation of the 2s S-2-->2p P-2 transition in C3+ were measured from 7.35 eV to 8.35 eV using the merged electron-ion-beams energy-loss technique. The results settle the discrepancy between two previous experiments using the crossed-beams fluorescence method, being in very good agreement with the older results [P. O. Taylor, D. Gregory, G. H. Dunn, R. A. Phaneuf, and D. H. Crandall, Phys. Rev. Lett. 39, 1256 (1977)] but less so with the more recent ones [D. W. Savin, L, D. Gardner, D. B. Reisenfeld, A. R. Young, and J. L. Kohl, Phys. Rev. A 51, 2162 (1995)]. The present measurements are also in good agreement with unitarized Coulomb-Born and close-coupling calculations. [S1050-2947(98)04301-7].

引用

页码：278 / 281

页数：4

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