Lifetime measurement of Be-(2s2p2 4P3/2) using an electrostatic ion trap

被引：25

作者：

Knoll, L ^{[1
]}

Bhushan, KG

Altstein, N

Zajfman, D

Heber, O

Rappaport, ML

机构：

[1] Weizmann Inst Sci, Dept Particle Phys, IL-76100 Rehovot, Israel

[2] Weizmann Inst Sci, Serv Phys, IL-76100 Rehovot, Israel

[3] Max Planck Inst Kernphys, D-69029 Heidelberg, Germany

来源：

PHYSICAL REVIEW A | 1999年 / 60卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.60.1710

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The lifetime of the metastable Be-(2s2p(2) P-4(3/2)) State is measured using an electrostatic linear ion trap which stores keV-ion beams. Trapping using electrostatic fields avoids the complication of magnetic-field-induced mixing effects which can interfere with the measurement of the spontaneous decay. The result is found to be 42.07+/-0.12 mu s, which is a factor of 40 better in accuracy than the previous result determined in a heavy-ion storage ring. The measured lifetime is found to be 30% longer than the most recent theoretical value. [S1050-2947(99)01008-2].

引用

页码：1710 / 1712

页数：3

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