Lifetime measurements and calculations in Y+ and Y2+ ions

E. Biemont; K. Blagoev; Lars Engström; Henrik Hartman; Hans Lundberg; G. Malcheva; Hampus Nilsson; Richard Blackwell-Whitehead; P. Palmeri; P. Quinet

doi:10.1111/j.1365-2966.2011.18637.x

Lifetime measurements and calculations in Y+ and Y2+ ions

E. Biemont, K. Blagoev, Lars Engström, Henrik Hartman, Hans Lundberg, G. Malcheva, Hampus Nilsson, Richard Blackwell-Whitehead, P. Palmeri, P. Quinet

Atomic Physics

Research output: Contribution to journal › Article › peer-review

Abstract

We report a new set oftheoretical transition probabilities in Y II, obtained using a multiconfiguration relativistic Hartree-Fock method including core polarization. The overall quality of the calculations is assessed by comparisons with new and previous lifetime measurements. In this paper, we report new measurements of five lifetimes in the 4d5p and 5s5p configurations, in the energy range of 32 048-44 569 cm(-1), obtained by the time-resolved laser-induced fluorescence method. A similar theoretical model, applied to Y III, leads to results in good agreement with new laser measurements of two 5p levels obtained in this work and with previous beam-foil results for 5d and 6s levels. An extensive set of oscillator strengths is also proposed for Y III.

Original language	English
Pages (from-to)	3350-3359
Journal	Monthly Notices of the Royal Astronomical Society
Volume	414
Issue number	4
DOIs	https://doi.org/10.1111/j.1365-2966.2011.18637.x
Publication status	Published - 2011

Subject classification (UKÄ)

Atom and Molecular Physics and Optics
Astronomy, Astrophysics and Cosmology

Free keywords

atomic data
atomic processes

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10.1111/j.1365-2966.2011.18637.x

Cite this

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abstract = "We report a new set oftheoretical transition probabilities in Y II, obtained using a multiconfiguration relativistic Hartree-Fock method including core polarization. The overall quality of the calculations is assessed by comparisons with new and previous lifetime measurements. In this paper, we report new measurements of five lifetimes in the 4d5p and 5s5p configurations, in the energy range of 32 048-44 569 cm(-1), obtained by the time-resolved laser-induced fluorescence method. A similar theoretical model, applied to Y III, leads to results in good agreement with new laser measurements of two 5p levels obtained in this work and with previous beam-foil results for 5d and 6s levels. An extensive set of oscillator strengths is also proposed for Y III.",

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doi = "10.1111/j.1365-2966.2011.18637.x",

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TY - JOUR

T1 - Lifetime measurements and calculations in Y+ and Y2+ ions

AU - Biemont, E.

AU - Blagoev, K.

AU - Engström, Lars

AU - Hartman, Henrik

AU - Lundberg, Hans

AU - Malcheva, G.

AU - Nilsson, Hampus

AU - Blackwell-Whitehead, Richard

AU - Palmeri, P.

AU - Quinet, P.

PY - 2011

Y1 - 2011

N2 - We report a new set oftheoretical transition probabilities in Y II, obtained using a multiconfiguration relativistic Hartree-Fock method including core polarization. The overall quality of the calculations is assessed by comparisons with new and previous lifetime measurements. In this paper, we report new measurements of five lifetimes in the 4d5p and 5s5p configurations, in the energy range of 32 048-44 569 cm(-1), obtained by the time-resolved laser-induced fluorescence method. A similar theoretical model, applied to Y III, leads to results in good agreement with new laser measurements of two 5p levels obtained in this work and with previous beam-foil results for 5d and 6s levels. An extensive set of oscillator strengths is also proposed for Y III.

AB - We report a new set oftheoretical transition probabilities in Y II, obtained using a multiconfiguration relativistic Hartree-Fock method including core polarization. The overall quality of the calculations is assessed by comparisons with new and previous lifetime measurements. In this paper, we report new measurements of five lifetimes in the 4d5p and 5s5p configurations, in the energy range of 32 048-44 569 cm(-1), obtained by the time-resolved laser-induced fluorescence method. A similar theoretical model, applied to Y III, leads to results in good agreement with new laser measurements of two 5p levels obtained in this work and with previous beam-foil results for 5d and 6s levels. An extensive set of oscillator strengths is also proposed for Y III.

KW - atomic data

KW - atomic processes

U2 - 10.1111/j.1365-2966.2011.18637.x

DO - 10.1111/j.1365-2966.2011.18637.x

M3 - Article

SN - 1365-2966

VL - 414

SP - 3350

EP - 3359

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 4

ER -

Lifetime measurements and calculations in Y+ and Y2+ ions

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