Extended pseudo-Voigt function for approximating the Voigt profile

  title={Extended pseudo-Voigt function for approximating the Voigt profile},
  author={T. Ida and M. Ando and H. Toraya},
  journal={Journal of Applied Crystallography},
  • T. Ida, M. Ando, H. Toraya
  • Published 2000
  • Physics
  • Journal of Applied Crystallography
  • The formula of the pseudo-Voigt function expressed by a weighted sum of Gaussian and Lorentzian functions is extended by adding two other types of peak functions in order to improve the accuracy when approximating the Voigt profile. The full width at half-maximum (FWHM) values and mixing parameters of the Gaussian, the Lorentzian and the other two component functions in the extended formula can be approximated by polynomials of a parameter ρ = ΓL/(ΓG + ΓL), where ΓG and ΓL are the FWHM values… CONTINUE READING
    159 Citations

    Figures and Tables from this paper

    A simple quasi-analytical method for the deconvolution of Voigtian profiles.
    • 7
    New measures of sharpness for symmetric powder diffraction peak profiles
    • 18
    • PDF
    Comment on: The exact expression of the Voigt profile function
    • 5
    Detailed computation of hot-plasma atomic spectra
    • 10
    • PDF


    Profile refinement of powder diffraction patterns using the Voigt function
    • 16
    • PDF
    Rietveld refinement of Debye–Scherrer synchrotron X‐ray data from Al2O3
    • 2,057
    • Highly Influential
    Effect of sample transparency in powder diffractometry with Bragg–Brentano geometry as a convolution
    • 18
    • PDF
    Rietveld refinement guidelines
    • 1,378
    • PDF
    More efficient computation of the complex error function
    • 173
    • PDF
    Numerical recipes
    • 17,129