Radiative lifetimes of odd-parity levels in Nb I

Mukund, Sheo; Bhattacharyya, Soumen; Yarlagadda, Suresh; Nakhate, S.G.

doi:10.1016/j.jqsrt.2015.07.019

Cited by 1 publication

(2 citation statements)

References 13 publications

(18 reference statements)

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“…Slightly larger discrepancies appear when comparing the lifetime values by Mukund et al (2015) with our results; the average and the root-mean-square differences are 20.6% and 27.2%, respectively. Note that the results of Mukund et al (2015) are also generally longer than those in other papers (Duquette & Lawler 1982;Kwiatkowski et al 1982;Malcheva et al 2011), which is probably because some systematic effects might not be well controlled in the measurements by Mukund et al (2015).…”

Section: Lifetime Measurementscontrasting

confidence: 59%

“…About three decades later, Malcheva et al (2011) extended previous investigations, and lifetimes of 17 levels between 27,400 and 47,700 cm −1 in Nb I were obtained. In 2015, Mukund et al (2015) reported on Nb I lifetimes for 37 levels belonging to the 4d 3 5s5p and 4d 4 5p configurations between 18,790 and 35,730 cm −1 with the results in the range of 12-340 ns by observing TR-LIF. However, radiative lifetimes of a number of Nb I levels have not been measured yet.…”

Section: Introductionmentioning

confidence: 71%

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Experimental and Theoretical Radiative Lifetimes, Branching Fractions, Transition Probabilities, and Oscillator Strengths of Nb i Levels

Geng

Quinet

Wang

et al. 2019

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Radiative lifetimes for 60 odd-parity levels of Nb I belonging to the 4d 3 5s5p and 4d 4 5p configurations, except for two levels with unknown configuration, which are in the energy range between 23,910.90 and 37,188.28 cm −1 , are measured by the time-resolved laser-induced fluorescence technique. The lifetime values range from 7.1 to 118.7 ns with uncertainties less than 10%. To our knowledge, 45 lifetime values determined in this paper are reported for the first time. By combining the experimental lifetimes with measured or computed branching fractions, we obtain transition probabilities and oscillator strengths for the individual channels depopulating the investigated levels.

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