Nonhomogeneity of dusty crystals and plasma diagnostics.

Real dusty crystals are inhomogeneous due to the presence of external forces. We suggest approximations for calculations of different types of inhomogeneous dust crystals (DC's) (chain and DC's with a few slabs) in the equilibrium state. The results are in a good agreement with experimental results and can be used as an effective diagnostic method for many dusty systems.