09 December 2015 a meeting of the Technical Council of Rosenergoatom Concern OJSC on materials science and metal control of equipment and pipelines was held at the Branch of the UOC RT (KO Bekasovo) of PJSC Rostelecom (Moscow Region, Naro-Fominsk, village d / o Bekasovo) NPP, where the department of «RadioTech» of JSC «Astyag» made a report «Modern methods of measuring residual stresses in the elements of equipment and pipelines of nuclear power plants» and presented a portable installation for measuring mechanical stresses in polycrystals by the method of X-ray diffraction «NERKA-1».