Measurement of radiative lifetimes in Pr II and Nd II

被引：14
|
作者：
Scholl, T [1 ]
Holt, R [1 ]
Masterman, D [1 ]
Rivest, R [1 ]
Rosner, S [1 ]
Sharikova, A [1 ]
机构：
[1] Univ Western Ontario, Dept Phys & Astron, London, ON N6A 3K7, Canada
来源：
CANADIAN JOURNAL OF PHYSICS | 2002年 / 80卷 / 07期
关键词：
D O I：
10.1139/P02-013
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have measured the radiative lifetimes of 33 levels of Pr II and 13 levels of Nd II using two variants of the beam-laser method. The levels studied had term energies up to similar to30 000 cm(-1) and lifetimes in the range 6-170 ns. Experimental accuracy was in the range 1-11% . We have used these lifetimes to update transition probabilities for 82 transitions in Pr II in the wavelength range 392-640 nm, which are useful for stellar abundance determinations.
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收藏
页码：713 / 722
页数：10
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