easistrain.func_fitting_functions.func_Gauss¶

easistrain.func_fitting_functions.func_Gauss(P, x)[source]¶

Gaussian 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*FWHM*sqrt(pi/Ln2) = 1.0644*FWHM