BREAKDOWN OF THE ISOLATED-RESONANCE APPROXIMATION FOR THE ELECTRON-IMPACT EXCITATION OF POSITIVE-IONS

被引：16

作者：

BADNELL, NR

GRIFFIN, DC

GORCZYCA, TW

PINDZOLA, MS

机构：

[1] ROLLINS COLL, DEPT PHYS, WINTER PK, FL 32789 USA

[2] AUBURN UNIV, DEPT PHYS, AUBURN, AL 36849 USA

来源：

PHYSICAL REVIEW A | 1993年 / 48卷 / 04期

关键词：

D O I：

10.1103/PhysRevA.48.R2519

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have carried out a series of calculations, the results of which demonstrate the breakdown of the isolated-resonance approximation for the electron-impact excitation of positive ions. The specific results presented here, namely for the 3s2 1S-->3s3p 3P transition in Fe14+, are not unique. All of the Mg-like ions that we have investigated so far exhibit the same breakdown. There is no reason to believe either that the Mg-like sequence is unique. This has important implications for the description of resonant processes that are strongly radiation damped, for which the isolated-resonance approximation is widely used and the standard formulation of the close-coupling approximation is not applicable.

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页码：R2519 / R2522

页数：4

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