MEASUREMENT OF THE RADIATIVE LIFETIME OF THE 1S2S S-3(1) LEVEL IN HELIUM-LIKE MAGNESIUM

被引：30

作者：

STEFANELLI, GS ^{[1
]}

BEIERSDORFER, P ^{[1
]}

DECAUX, V ^{[1
]}

WIDMANN, K ^{[1
]}

机构：

[1] LAWRENCE LIVERMORE NATL LAB, LIVERMORE, CA 94550 USA

来源：

PHYSICAL REVIEW A | 1995年 / 52卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.52.3651

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We apply a recently developed electron-beam ion trap technique to measure the lifetime of the 1s2s S-3(1) level in heliumlike magnesium. The technique employs a fast-switching electron beam to produce and excite electrostatically trapped ions. The radiative lifetime is determined by observing the fluorescent decay of the 1s2s S-3(1) level after the beam energy is switched below the threshold for electron-impact excitation. A value of 13.61+/-0.49 mu s has been measured for the 1s2s S-3(1) level in heliumlike magnesium, in good agreement with theoretical predictions.

引用

页码：3651 / 3654

页数：4

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