Portable diffractometers of the URAN series are designed for non-destructive testing of elastic deformations of the crystal lattice and calculation of residual and acting mechanical stresses in parts and structures for various purposes during their manufacture, operation and repair (railway transport wheels, disks and blades of gas turbines, pipes, springs, bridges, ropes, welds, etc.). Samples can have an arbitrary, complex surface (straight, inclined, wavy, with bends). There are no restrictions on the size of the samples. Studies can be conducted in the laboratory, in the workshop, in the field, directly on site. URAN series diffractometers are representatives of a new generation of portable X-ray diffractometers developed by AMTERTEK specialists.

Diffractometers of the URAN are certified by the Federal Agency for Technical Regulation and Metrology as a type of measuring instruments, registered in the State Register of Measuring Instruments under No. 83279-21 and approved for use in the Russian Federation, and also exempt from radiation monitoring and accounting.


The X-ray diffractometry method is introduced in interstate standard GOST 32207-2013 "Wheel for railway stock. Methods of residual stresses determination".

The shooting scheme used in the diffractometer is the true «Sin²Ψ» scheme. It allows to determine with high accuracy the stresses in the material, both in magnitude and in directions lying in the plane of the surface. The X-ray tube used in the Uran has such a low power (4 W) that the level of the background radiation does not exceed the natural level of the operator's environment and makes the work of the diffractometer environmentally safe. The low power of the X-ray tube does not require any heat fluxes takeoff by water cooling, does not require special radiation protection, and provides a reduction in the dimensions of the goniometer and power unit and, accordingly, the overall weight of the device.

The specialized software has an intuitive interface and is intended for controlling the diffractometer, obtaining and processing data obtained from the measuring path of the X-ray detector. The user interface corresponds to the established standards of Windows applications, which allows users to easily and quickly master the application.

The URAN is easy to use, completely computer-controlled, does not require a separate personnel with a special qualification for service and operation.

The advantage of this diffractometer is the rapid adjustment on samples with an arbitrary working surface (both manual and automated adjustment is possible), radiation safety, portability, low power consumption, non-destructive analysis, ease of maintenance, lack of consumables, use both in the laboratory and in workshop conditions.

The sealed-off position-sensitive detector does not require a gas mixture supply. Can work in environments with increased radiation.

Diffractometer URAN 50 was developed according to the terms of reference Vyksa Steel Works and delivered to the customer for non-destructive assessment of deformations and mechanical stresses. Control of finished products (wheels of railway transport, pipes - structurally having different shapes and dimensions) at various stages of production and is currently in operation. The diffractometer developed and delivered to the customer's enterprise has no analogues in terms of its technical characteristics and capabilities. It is portable and radiation safe. The design of the measuring system of the diffractometer makes it possible to determine deformations and mechanical stresses at any point of interest in the complex design of the product without destroying it.

Unlike the existing methods for estimating the stress-strain state (strain gauges, acoustic, magnetic, etc.), this method is the only direct method of investigation.