Ferometric methods of investigating the substance homogeneity

It has been shown experimentally that at preliminary passing of the superpositioning X-ray waves through the samples in which the density of the substance is distributed inhomogeneously, irregular shifts of phases arise in those waves as a result of which the observed interference patterns disappear. While investigating the contrasts of the line shifts arising in the double two-crystal interferometers and the pendulum strips arising in the three-crystal interferometers, it is possible to estimate the degree of homogeneity of the substance density distribution in the samples