RESONANT ELECTRON-CAPTURE BY THE METASTABLE C V AND O VII IONS

被引：1

作者：

BELLANTONE, R

HAHN, Y

机构：

[1] Department of Physics, University of Connecticut, Storrs

来源：

PHYSICA SCRIPTA | 1990年 / 42卷 / 06期

关键词：

D O I：

10.1088/0031-8949/42/6/004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Dielectronic recombination rates and cross sections for the metastable C V and O VII ions are calculated and found to be extremely large, with cross sections of the order of 10−15 cm2 and rates of the order of 10−9 cm3 s−1 for individual resonances. Electric field enhancement and composition of the metastable 1s2s ion beams in terms of (1S) and (3S) are used to reproduce the recent experimental data of Andersen et al. [Phys. Rev. Lett. 62, 2656 (1989)] for O VII and unpublished data for C V. The overall features are well explained in the case of carbon, while the features for oxygen are well explained except for the broad prominent peaks at 2.5 and 6.8 eV, which are only partially explained. © 1990 IOP Publishing Ltd.

引用

页码：650 / 657

页数：8

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