Lifetime, branching ratio, and absolute transition probability of the 639542 Å transition of ^238U i
- 1 August 1978
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America
- Vol. 68 (8) , 1084-1087
- https://doi.org/10.1364/josa.68.001084
Abstract
We have refined and extended an existing technique for determining an atomic transition probability by carefully measuring the transition branching ratio (BR) and excited-state lifetime (τ), with particular attention paid to systematic errors. The technique was applied to the red region of the 238U I spectrum where little accurate data is presently available. In particular, we find for the 6395.42 Å transition the following values: τ = 607 ± 20 ns, BR = 0.586 ± 0.05, and g 2A = 1.45 × 107 ± 1.25 × 106.Keywords
This publication has 3 references indexed in Scilit:
- Mean lives andvalues in UiPhysical Review A, 1977
- Determination of absolute atomic transition probabilities using time resolved optical pumpingOptics Communications, 1977
- Line strengths and lifetimes of levels in neutral uraniumJournal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1976