Beam-foil lifetime measurements in Pb III and Pb IV

Ansbacher, W.; Pinnington, E. H.; Kernahan, J. A.

doi:10.1139/p88-067

Cited by 30 publications

(33 citation statements)

References 9 publications

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“…In Table IV of Ref. [17], the authors made comparison of their measurements with previous [11], experimental measurements by Pinnington et al [23], and by Ansbacher et al [24]. Uncertainties are given in parentheses.…”

Section: Oscillator Strengths Transition Rates and Lifetimes Imentioning

confidence: 98%

“…The lifetime values in Pb III were determined for the low-lying levels (6s6p 1,3 P 1 , 6s7s 3 S 1 , and 6s6d 3 D J ). Beam-foil intensity decay curves for transitions in the wavelength range from 900 to 2200Å were used by Ansbacher et al [24] to derive the lifetimes of the 6s6p 1,3 P 1 , 6s6d 1 D 2 , 6s7s 3 S 0 , and 6p 2 1 D 2 levels of Pb III. Arbitrarily normalized decay curve (ANDC) analysis was used for the 6s6p levels.…”

Section: Introductionmentioning

confidence: 99%

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Atomic properties of Pb III

2012

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We carry out a systematic study of Pb III properties using a hybrid method that combines configuration interaction and linearized coupled-cluster approaches. The calculations start from a [Xe]4f 14 5d 10 Dirac-Fock potential. Excitation energies and lifetimes of the 6p 2 , 6sns, 6snp, and 6snd (n 9) states are evaluated. Reduced matrix elements, oscillator strengths, and transition rates are determined for allowed electric-dipole transitions including these states. Extensive comparison with other theoretical and experimental values is carried out. Electric-dipole polarizabilities of the 6s 2 1 S 0 , 6s6p 3 P 0 , and 6s6p 3 P 1 states in Pb III and ground state polarizability of Pb 4+ are reported.

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Section: Oscillator Strengths Transition Rates and Lifetimes Imentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Atomic properties of Pb III

2012

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“…This is a modified version of the nonlinear least-squares fitting routine, VNET [12], which was originally developed for the analysis of beam-foil decay curves including the excitation region at the foil. In the present application, the fitting function contains only a single exponential and an adjustable Gaussian to represent the detection window.…”

Section: Techniques For Data Acquisition and Analysismentioning

confidence: 99%

Beam-laser measurements and relativistic Hartree-Fock calculations of the lifetimes of the 3d⁹4p levels in Cu II

Pinnington¹,

Rieger²,

Kernahan³

et al. 1997

Can. J. Phys.

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We report the first lifetime measurements for Cu II using laser excitation of a fast beam. We present results for 10 levels belonging to the 3d 9 4p configuration. We also report the lifetimes we have calculated for these levels using Cowan's relativistic Hartree-Fock method. We compare our results with previous measurements and calculations.Résumé : Nous présentons les premières durées de vie radiative de Cu II obtenues à partir de l'excitation laser d'un faisceau d'ions rapides. Des résultats ont été obtenues pour 10 niveaux appartenant à la configuration 3d 9 4p. Nous présentons également, pour ces même niveaux, des durées de vie calculées par la méthode Hartree-Fock relativiste ainsi qu'une comparaison de nos résultats avec des mesures et des calculs antérieurs.

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“…The beam-foil technique was used by Pinnington et al [15] 2 levels were measured by Ansbacher et al [16].…”

Section: Introductionmentioning

confidence: 99%

Theoretical transition probabilities, oscillator strengths, and radiative lifetimes of levels in Pb IV

Alonso‐Medina

Colón

Porcher

2011

Atomic Data and Nuclear Data Tables

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Transition probabilities and oscillator strengths of 176 spectral lines with astrophysical interest arising from 5d10 ns (n = 7,8), 5d 10 np (n = 6,7), 5d 10 nd (n = 6,7), 5d 10 5f, 5d 10 5g, 5d 10 nh (n = 6,7,8), 5d 9 6s 2 , and 5d 9 6s6p configurations, and radiative lifetimes for 43 levels of Pb IV, have been calculated. These values were obtained in intermediate coupling (IC) and using relativistic Hartree-Fock calculations including core-polarization effects. For the IC calculations, we use the standard method of least-square fitting from experimental energy levels by means of the Cowan computer code. The inclusion in these calculations of the 5d 10 7p and 5d 10 5f configurations has facilitated a complete assignment of the energy levels in the Pb IV. Transition probabilities, oscillator strengths, and radiative lifetimes obtained are generally in good agreement with the experimental data.

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Beam-foil lifetime measurements in Pb III and Pb IV

Cited by 30 publications

References 9 publications

Atomic properties of Pb III

Atomic properties of Pb III

Beam-laser measurements and relativistic Hartree-Fock calculations of the lifetimes of the 3d⁹4p levels in Cu II

Theoretical transition probabilities, oscillator strengths, and radiative lifetimes of levels in Pb IV

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Beam-foil lifetime measurements in Pb III and Pb IV

Cited by 30 publications

References 9 publications

Atomic properties of Pb III

Atomic properties of Pb III

Beam-laser measurements and relativistic Hartree-Fock calculations of the lifetimes of the 3d94p levels in Cu II

Theoretical transition probabilities, oscillator strengths, and radiative lifetimes of levels in Pb IV

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Beam-laser measurements and relativistic Hartree-Fock calculations of the lifetimes of the 3d⁹4p levels in Cu II