Improved electron-beam ion-trap lifetime measurement of the Ne8+ 1s2s 3S1 level

被引：42

作者：

Träbert, E

Beiersdorfer, P

Brown, GV

Smith, AJ

Utter, SB

Gu, MF

Savin, DW

机构：

[1] Lawrence Livermore Natl Lab, Dept Phys & Space Technol, Livermore, CA 94551 USA

[2] Columbia Univ, Dept Phys, New York, NY 10027 USA

[3] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA

[4] Ruhr Univ Bochum, D-44780 Bochum, Germany

[5] Morehouse Coll, Dept Phys, Atlanta, GA 30314 USA

来源：

PHYSICAL REVIEW A | 1999年 / 60卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.60.2034

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An earlier electron-beam ion-trap (EBIT) lifetime measurement of the Ne8+ 1s2s S-3(1) level has been improved upon, reducing the uncertainties to less than the scatter in the existing theoretical calculations. The new result, 91.7+/-0.4 mu s, agrees with the previous value, but is more precise by a factor of 4. The new value distinguishes among theoretical values, as agreement is obtained only with those calculations that employ ''exact'' nonrelativistic or relativistic wave functions. Routes to measurements with even higher accuracy are discussed. [S1050-2947(99)06009-6].

引用

页码：2034 / 2038

页数：5

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