Measurement of the 1s2s2p 4P°5/2-1s2p3d 4F°9/2 electric-quadrupole transition in doubly excited N4+, O5+, F6+ and Ne7+ lithium-like ions

被引：4

作者：

Denis, A ^{[1
]}

Buchet-Poulizac, MC ^{[1
]}

Bernard, J ^{[1
]}

Chen, L ^{[1
]}

Martin, S ^{[1
]}

Désesquelles, J ^{[1
]}

机构：

[1] Univ Lyon 1, Spectrometrie Ion & Mol Lab, CNRS, UMR 5579, F-69622 Villeurbanne, France

来源：

PHYSICA SCRIPTA | 2000年 / 61卷 / 04期

关键词：

D O I：

10.1238/Physica.Regular.061a00431

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Doubly excited ions have been obtained in one-electron capture processes by metastable ions from Cs (6s) Incident heliumlike ions have been prepared in high metastable fractions by collision in a gas cell of hydrogenlike ions produced by an ECR ion source. The main interest of this work was to find the electric-quadrupole transition 1s2s2p 4P(5/2)(o) - 1s2p3d F-4(9/2)o among the doubly excited quartet and doublet systems of 3-electron ions. Although E2 transitions are in principle highly forbidden, the 2s P-4(5/2)o - 3d F-4(9/2)o transition has been measured in N4+, O5+, F6+ and Ne7+ by vuv spectroscopy taking advantage of non-negligible branching ratios and highly-state-selective-collisions.

引用

页码：431 / 436

页数：6

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