Resolution in diffraction. An outline of the method of conjugate diameters

Jens Aage Als-Nielsen

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    Abstract

    The in-plane resolution of a diffraction apparatus is discussed in the Gaussian approximation. This approximation is generally adequate to find half-widths of the resolution function, but the detailed resolution line-shape may differ from a
    Gaussian line-shape for instance in using perfect crystals as monochromator or analyzer. In combining the contributions from different elements in the apparatus to the resolution function we find the method of conjugate diameters useful. The resulting resolution widths are not given in explicit formulae but by means of a few simple subroutines in a computer program, e.g. transforming a set of conjugate diameters to another set with a prescribed direction of one diameter, the method seems to be readily applicable ot a variety of instruments.
    Original languageEnglish
    Place of PublicationRoskilde
    PublisherRisø National Laboratory
    Number of pages24
    ISBN (Print)87-550-0998-0
    Publication statusPublished - 1984
    SeriesRisø-M
    Number2426
    ISSN0418-6435

    Keywords

    • Risø-M-2426

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