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.

引用

页码：713 / 722

页数：10

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