Use of x-ray optical systems in a small diffractometer

The use of Kumakhov halflenses in a small diffractometers with position-sensitive detector for the investigation of stress-deformation state is considered. The possibility of obtaining the system of parallel beam with a small angular divergence allows to estimate the state of stress- deformation in a various sections of object under investigation, owing to drawing near or moving away x-ray tube connected with the halflens. It is shown, that the new method should be very interesting for determination of the reliability of a real articles.