Investigation of the interaction potential and thermodynamic functions of dusty plasma by measured correlation functions

Results of investigation of the compressibility factor, compressibility, and the internal energy of dusty plasma are reported. The integral equations approach is used to calculate charge, screening radius and the interaction potential of dust particles. This approach is based on experimentally obtained pair correlation functions. It is demonstrated that states of dusty plasma structure correspond to supercritical fluid with a greater or lesser density. (c) 2007 American Institute of Physics.