Download the current version (TYSQ22) Matlab code to calculate the structure factor for a one component system interacting with a two-term Yukawa potentials. [Manual;Software] (TYSQ22 is released in September, 2015.)
Colloidal Interactions in Solutions (My presentation at the tutorial session of SANS and Reflectometry for Soft Condensed Matter Research in American Conference on Neutron Scattering, May, 2008)
Other tutorial materials available at Center for Neutron Science at Delaware.
Tutorial Materials available at NCNR.