Abstract
The methods used to extract chord-length distributions from small-angle scattering data assume a structure consisting of spatially uncorrelated and disconnected convex regions. These restrictive conditions are seldom met for a wide variety of materials such as porous materials and semicrystalline or phase-separated copolymers, the structures of which consist of co-continuous phases that interpenetrate each other in a geometrically complex way. The significant errors that would result from applying existing methods to such systems are discussed using three distinct models for which the chord-length distributions are known analytically. The models are a dilute suspension of hollow spheres, the Poisson mosaic and the Boolean model of spheres.
Original language | English (US) |
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Pages (from-to) | 127-132 |
Number of pages | 6 |
Journal | Journal of Applied Crystallography |
Volume | 53 |
DOIs | |
State | Published - Feb 1 2020 |
Keywords
- Poisson mosaic
- chord-length distributions
- penetrable spheres
- small-angle scattering
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)