Interaction of slow neutrons with water in near- and subcritical region

From the experimental scattering law (SL) of slow neutrons with water being in post-critical state (t=400 deg C) separated is its translational part (SLTP) that is analysed on the basis of two-phase model and is used to extract information on triple correlations in water and to compare with forecasts of generalized kinetic theory. A possibility is shown to describe the slow neutron scattering cross section with subcritical water of the two-phase model; relative concentrations of liquid and gas phases found proceeding from this description agree satisfactorily with those obtained before. Isothermal pressure derivative from SLTP is obtained. A comparison of natural experimental semiwidth of SLTP with forecasts of generalized kinetic theory has shown that even at post-critical temperatures and moderated densities translational motion of water steam molecules can not be described by the solid sphere model, but demonstrates effects connected with the influence of intermolecular attraction forces