Uncertainty of oscillator strengths derived from lifetimes and branching fractions

Carl Martin Sikström; Hampus Nilsson; Ulf Litzén; Anders Blom; Hans Lundberg

doi:10.1016/S0022-4073(01)00258-8

Uncertainty of oscillator strengths derived from lifetimes and branching fractions

Carl Martin Sikström, Hampus Nilsson, Ulf Litzén, Anders Blom, Hans Lundberg

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

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Abstract

A widely used method for determination of transition probabilities and oscillator strengths is based on measurements of branching fractions and radiative lifetimes. In the present work the different sources of uncertainty in branching fraction measurements using Fourier transform spectroscopy and lifetime measurements using laser induced fluorescence are discussed. A detailed description is presented of how the uncertainties should be combined to provide a well-defined uncertainty of the derived quantity. Finally, an example shows how the individual uncertainties can be presented in an "uncertainty budget".

Original language	English
Pages (from-to)	355-368
Journal	Journal of Quantitative Spectroscopy and Radiative Transfer
Volume	74
Issue number	3
DOIs	https://doi.org/10.1016/S0022-4073(01)00258-8
Publication status	Published - 2002

Subject classification (UKÄ)

Astronomy, Astrophysics and Cosmology
Atom and Molecular Physics and Optics

Free keywords

PACS classification codes: 32.70.Cs
Atomic lifetimes
Oscillator strengths
Transition probabilities

Access to Document

10.1016/S0022-4073(01)00258-8

1 Doctoral Thesis (compilation)

Laboratory and stellar spectroscopy of the complex ions Fe+, Mo+, Th+ and U+
Nilsson, H., 2002, Hampus Nilsson, Lund University,. 242 p.
Research output: Thesis › Doctoral Thesis (compilation)

Cite this

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abstract = "A widely used method for determination of transition probabilities and oscillator strengths is based on measurements of branching fractions and radiative lifetimes. In the present work the different sources of uncertainty in branching fraction measurements using Fourier transform spectroscopy and lifetime measurements using laser induced fluorescence are discussed. A detailed description is presented of how the uncertainties should be combined to provide a well-defined uncertainty of the derived quantity. Finally, an example shows how the individual uncertainties can be presented in an {"}uncertainty budget{"}.",

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T1 - Uncertainty of oscillator strengths derived from lifetimes and branching fractions

AU - Sikström, Carl Martin

AU - Nilsson, Hampus

AU - Litzén, Ulf

AU - Blom, Anders

AU - Lundberg, Hans

PY - 2002

Y1 - 2002

N2 - A widely used method for determination of transition probabilities and oscillator strengths is based on measurements of branching fractions and radiative lifetimes. In the present work the different sources of uncertainty in branching fraction measurements using Fourier transform spectroscopy and lifetime measurements using laser induced fluorescence are discussed. A detailed description is presented of how the uncertainties should be combined to provide a well-defined uncertainty of the derived quantity. Finally, an example shows how the individual uncertainties can be presented in an "uncertainty budget".

AB - A widely used method for determination of transition probabilities and oscillator strengths is based on measurements of branching fractions and radiative lifetimes. In the present work the different sources of uncertainty in branching fraction measurements using Fourier transform spectroscopy and lifetime measurements using laser induced fluorescence are discussed. A detailed description is presented of how the uncertainties should be combined to provide a well-defined uncertainty of the derived quantity. Finally, an example shows how the individual uncertainties can be presented in an "uncertainty budget".

KW - PACS classification codes: 32.70.Cs

KW - Atomic lifetimes

KW - Oscillator strengths

KW - Transition probabilities

U2 - 10.1016/S0022-4073(01)00258-8

DO - 10.1016/S0022-4073(01)00258-8

M3 - Article

SN - 0022-4073

VL - 74

SP - 355

EP - 368

JO - Journal of Quantitative Spectroscopy and Radiative Transfer

JF - Journal of Quantitative Spectroscopy and Radiative Transfer

IS - 3

ER -

Uncertainty of oscillator strengths derived from lifetimes and branching fractions

Abstract

Subject classification (UKÄ)

Free keywords

Access to Document

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Research output

Laboratory and stellar spectroscopy of the complex ions Fe+, Mo+, Th+ and U+

Cite this