Structure factor

The structure factor is an contribution to measured scattering. The structure factor, $\scriptstyle S(q)$ can be thought of as encoding the structural information about the same: how the constituents are organized, in relation to one another. This can be contrasted with the form factor, which is the scattering coming from the constituents themselves (i.e. their size, shape, and composition).

Example Structure Factors

• Wikipedia:
  • BCC
  • FCC
  • Diamond Crystal Structure
• NCNR SANS Resources:
  • SquareWell Model
  • HardSphere Model
• Pedersen Review: Analysis of small-angle scattering data from colloids and polymer solutions: modeling and least-squares fitting Jan Skov Pedersen, Advances in Colloid and Interface Science 1997, 70, 171. doi: 10.1016/S0001-8686(97)00312-6
  1. Hard-sphere potential
  2. Sticky hard-sphere potential
  3. Screened Coulomb potential
  4. Hard-sphere potential, polydisperse system
  5. Sticky hard-sphere potential, polydisperse system
  6. Screened Coulomb potential, polydisperse system
  7. Cylinders
  8. Solutions of polymers