CROSS-SECTION STRUCTURE OF CYLINDRICAL AND POLYMER-LIKE MICELLES FROMSMALL-ANGLE SCATTERING DATA .1. TEST OF ANALYSIS-METHODS

The application of the indirect Fourier transformation method and the square-root deconvolution procedure of Glatter [Glatter (1977). J. App l. Cryst. 10, 415-421; Glatter (1981). J. Appl. Cryst. 14, 101-108] fo r a determination of the cross-section structure of cylindrical and po lymer-like micelles is investigated. The data analysis methods assume: (i) the rod-like structures are infinitely long and straight; (ii) th e particles have cylindrical symmetry; (iii) the particles are monodis perse in the cross-section size and have no fluctuations in the cross- section structure. The influence of the violations of these assumption s on the applicability of the methods and the limitations have been in vestigated by analyzing series of simulated scattering data. In additi on, the influence of finite range of scattering vectors for the data a nd the presence of diffuse correlations along the rod-like particles h ave been determined.