Branching fractions and transition probabilities for transitions from 2p^4 3p, 2p^4 3d, and 2p^4 4s levels of Ne II

Griesmann, Ulf; Μusielok, J.; Wiese, Wolfgang L.

doi:10.1364/josab.14.002204

Cited by 20 publications

(21 citation statements)

References 18 publications

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“…Two other systematic trends showed up in the comparisons of our experimental data with the calculations: (a) One trend concerns fine structure transitions, i.e. We have found this to be the case for all intersystem lines we have measured in the spectra of N i, N ii, and Ne ii [11], [12], [21]. We found that lines in multiplets of the type s − p adhere closely to LS-or Russell-Saunders coupling, while p − d and d − f transitions exhibit appreciable departures from it which make calculations in intermediate coupling (IC) a necessity.…”

Section: Some Highlights Of the Experimental Testssupporting

confidence: 52%

Experimental Tests of Atomic Structure Calculations

Wiese

2000

Contrib. Plasma Phys.

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Section: Some Highlights Of the Experimental Testssupporting

confidence: 52%

Experimental Tests of Atomic Structure Calculations

Wiese

2000

Contrib. Plasma Phys.

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“…4. Wiese et al (1966), NIST (2001), Kurucz (2001), Griesmann et al (1997) and Burshtein & Vujnović (1991), respectively (also in 10 8 s −1 ). Our measured transition probability values (A exp ) are presented in Table 1 together with A values taken from various theoretical (Wiese et al 1966;NIST 2001;Kurucz 2001) and experimental data sources (Burshtein & Vujnović 1991;Griesmann et al 1997).…”

Section: Transition Probabilitiesmentioning

confidence: 95%

“…In the case of the 3s-3p transition the measured A values (GMW - Griesmann et al 1997 andBV -Burshtein &Vujnović 1991) show a tendency to increase in recent years (see Table 1). …”

Section: Transition Probabilitiesmentioning

confidence: 95%

“…Existing measured and calculated Ne ii A values are collected in a number of articles (Wiese et al 1966;NIST 2001;Kurucz 2001;Burshtein & Vujnović 1991;Blackford & Hibbert 1994;Griesmann et al 1997;Fischer & He 1999;Zeippen 1995). Existing transition probability values of the spontaneous emission (Einstein's A values) corresponding to the Ne ii transitions investigated have also been checked using the known relative line intensity ratio (RLIR) method described in Djeniže & Bukvić (2001).…”

Section: Introductionmentioning

confidence: 99%

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Stark shifts and transition probabilities in the Ne spectrum

Djeniže

Milosavljević

Dimitrijević

2002

A&A

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Abstract. Stark shifts (d) and transition probabilities of the spontaneous emission (Einstein's A values) of forty two singly charged neon (Ne ii) ion spectral lines have been measured in a linear, low pressure, pulsed arc at 35 300 K electron temperature and 1.83 × 10 23 m −3 electron density. Transition probabilities have been obtained using the relative line intensity ratio (RLIR) method. Stark shift values have also been calculated, using the semiclassical perturbation formalism (SCPF). The measured and calculated shift values and the measured A values have been compared to the existing data taken from available data sources.

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“…For the spectral region between 30 000-42 000 cm −1 recordings were obtained with an identical instrumental setup, but with neon as the carrier gas. Branching fractions of Ne II have been published (Griesmann et al 1997), and, by including these additional spectral lines, the accuracy of the instrumental response function was improved.…”

Section: Branching Fraction and Transition Probability Determinationmentioning

confidence: 99%

Radiative lifetime and oscillator strength determinations in Sm III

Biémont

Garnir

Litzén³

et al. 2003

A&A

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Abstract. Radiative lifetimes of 6 levels belonging to the 4f 5 ( 6 H • , 6 F • )5d configuration of Sm III have been measured for the first time using a time-resolved laser-induced fluorescence technique. Experimental data have been compared with semiempirical calculations. The agreement is excellent for 4 levels with 6 F • as a parent term. Larger discrepancies (53 and 37%) are observed for 2 levels with 6 H • and 6 F • , respectively, as a parent term and are explainable by strong mixing and cancellation effects occurring in the line strength calculations which are responsible of "instabilities" occurring in the lifetimes considered as a function of J value within the term. Branching ratios for the lines depopulating the levels of interest have been measured by Fourier transform spectroscopy. A first set of oscillator strengths has been deduced for this ion.

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Branching fractions and transition probabilities for transitions from 2p^4 3p, 2p^4 3d, and 2p^4 4s levels of Ne II

Cited by 20 publications

References 18 publications

Experimental Tests of Atomic Structure Calculations

Experimental Tests of Atomic Structure Calculations

Stark shifts and transition probabilities in the Ne spectrum

Radiative lifetime and oscillator strength determinations in Sm III

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