How Does X-ray Diffraction Measure Crystal Structures in Solid State Physics?

[montser]

Hello everyone,
I need to prepare a poster which presents an experimental technique, describes how the technique operates technically and describes one quantity it measures and connect between measured quantity and physical properties of solids.
Is there any suggestion for topics which fulfill this demands?

Thanks

 

[nbo10]

resistivity, magnetization, specific heat, the list goes on and on.