Results of studying detonation processes in plastic-bonded TATB explosive, which are obtained by methods based on using synchrotron radiation, are given. In exper- iments, the detonating cylindrical charge was probed in a plane perpendicular to the axis. This allows us to obtain data on the dynamics of the mass distribution on the beam in a fixed section of the examined detonation flow. For cylindrical charges, the flow of detona- tion products is axisymmetric. This allows us to reconstruct the density distribution along the radius in the examined charge section on the basis of information obtained by probing in one perspective only. Data on the density distribution in the detonation front and behind the front for several high explosives are presented. The data on density distribution were used for reconstruction of all parameters (density fields, particle velocity vector, and pressure) of gas-dynamic flow of products of explosion. This method is based on numerical solution of the gas-dynamic problem formulated in accordance with a condition of experiment. The form of the equation of state is set, and a field of flow is calculated, in which the density distribution with that obtained in experiments is compared. The equation state parameters were chosen by minimizing the functional of root-mean-square deviations of the calculated and experimental x-ray "shadows" of the examined flow in selected nodes of the computational domain.This method allowed to obtain parameters of barotropic equation of state of detonation products and reconstruct agreed flow with full set of gase- dynamic characteristics: density fields, particle velocity vector, and pressure.
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