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A procedure for desmearing X‐ray small‐angle scattering curves
Author(s) -
Vonk C. G.
Publication year - 1971
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889871007179
Subject(s) - scattering , diffraction , intensity (physics) , trace (psycholinguistics) , spheres , physics , beam (structure) , point (geometry) , optics , least squares function approximation , geometry , mathematics , statistics , philosophy , linguistics , astronomy , estimator
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 ? i = ∑ j a i,j I j where ? i is the observed smeared intensity at point i and a i,j I 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.