Interactive Tutorial about Diffraction Interactive example: Short range order 

Diffuse scattering
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This simulation allows one to create a disordered structure containing
vacancies with a given chemical short range order. The meaning of
correlation values was discussed in the SRO
section of this tutorial. The input parameters are the vacancy
concentration and the desired correlation values in different direction.
Note that not all combinations of correlation values can actually be
realized. Check the output for the final achieved values. The simulated
structure is 50x50 unit cells in size. One Monte Carlo (MC) cycle is 2500
iterations, i.e. every site was visited once on average. The more cycles
are carried out, the more the correlations can 'spread' through the
crystal. Additionally one can choose to calculate the resulting Xray or
neutron scattering.
Here are a few questions to explore:

© Th. Proffen and R.B. Neder, 2003 