A procedure for desmearing X-ray small-angle scattering curves

A computer procedure for slit-height correction of X-ray small-angle scattering curves is described, which I_j based on direct calculation of the desmeared intensity values I_j from the equations Ĩi = ∑_ja_i,jI_j where Ĩi is the observed smeared intensity at point i and a_i,jI_j represents the contribution from a point j along the trace of the primary beam. However, the number of unknown I_j values is reduced by a factor 1/n (n = 3 to 5), and the equations are solved by the method of least-squares. The performance of the method is tested on the diffraction curve of isolated spheres.