easistrain.func_fitting_functions.func_pseudo_voigt

easistrain.func_fitting_functions.func_pseudo_voigt(P, x)[source]

Pseudo-Voigt function used to describe an X-ray diffraction peak

  • P[0]: Intensity of the peak (maximum intensity of the peak)

  • P[1]: 2Theta (2 * bragg angle)

  • P[2]: Integral breadth which is related to the FWHM: IB = (0.5*pi*FWHM)/(P[3]+((1-P[3])*sqrt(pi*Ln2)))

  • P[3]: Shape factor (Lorentzian: shape factor –> 1 , Gaussian: shape factor –> 0)