The recycling of industrial waste has always been relevant. In the modern world with the development of technology and the construction industry, it is necessary to find new opportunities for the disposal of industrial waste. One of the disposal options is to obtain synthetic anhydrite. Features of production and the finished product of processing make it difficult to use a binder for housing and civil construction. The study of the process of hardening of anhydrite binder and the properties of the resulting stone allows it to be used in different technologies for the manufacture of various building structures based on this binder.

Keywords: gypsum, anhydrite, synthetic anhydrite, industrial waste.

The possibility of channeling X-ray fluorescence inside the hollow microvascular at the energy of the exciting radiation in the vicinity SiL2, 3 - absorption edge has been researched. Theoretically obtained the angular distribution of the field passing through the microchannels. The calculation model of inhomogeneous waveguide layer with the generation of X-ray fluorescence inside the walls of the microchannels shows the possibility of escape of radiation at large angles.

Keywords: channeling of X-ray fluorescence, microchannel plates, focusing of X-ray radiation