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The Effects of Relativity in Atoms, Molecules, and the Solid State pp 45–54Cite as

On the Accuracy of Oscillator Strengths

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Abstract

It is important to investigate whether non—relativistic errors in calculated oscillator strengths and related atomic data are large enough to obscure corrections applied in relativistic calculations. The magnitude such errors is however difficult to estimate. This is just one reason why the accuracy of the atomic data needs careful scrutiny. Application to the analysis of line intensities in laboratory and astropyhsical plasmas is a more general one. This review therefore focuses on errors that can affect the accuracy of calculated oscillator strengths. Precautions that can be taken to minimise errors arising from different causes are surveyed. Special attention is given to their reduction through the improvement of eigenvectors with Slater parameter optimisation methods. These semi-empirical methods for improving the accuracy of oscillator strengths can be important in fully relativistic calculations for a range of ions.

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Author information

Authors and Affiliations

  1. Rutherford Appleton Laboratory, Science and Engineering Research Council, Chilton, Didcot, Oxfordshire, OX11 0QX, England

    B. C. Fawcett

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  1. B. C. Fawcett
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Editors and Affiliations

  1. Rutherford Appleton Laboratory, Oxfordshire, UK

    S. Wilson

  2. University of Oxford, Oxford, UK

    I. P. Grant

  3. University of Bristol, Bristol, UK

    B. L. Gyorffy

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Fawcett, B.C. (1991). On the Accuracy of Oscillator Strengths. In: Wilson, S., Grant, I.P., Gyorffy, B.L. (eds) The Effects of Relativity in Atoms, Molecules, and the Solid State. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-3702-1_3

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  • DOI: https://doi.org/10.1007/978-1-4615-3702-1_3

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4613-6646-1

  • Online ISBN: 978-1-4615-3702-1

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