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Information × Registration Number 0226U000891, (0121U109181) , R & D reports Title Study of the physical processes in nuclear sub-critical facilities driven with particle accelerators popup.stage_title Розробка методик та проведення досліджень механічних властивостей та радіаційних ушкоджень зразків конструкційних матеріалів після опромінювання в активній зоні підкритичної збірки Head Karnaukhov Ivan М., Доктор фізико-математичних наук Registration Date 17-01-2026 Organization National Science Center "Kharkiv Institute of Physics and Technology" popup.description1 The main objective of the work is development and performance of the scientific investigations on the base of NSC KIPT subcritical assembly “Neutron Source” to provide the operation safety and studies with neutron use in different fields of fundamental science, energetics, solid state physics, biophysics medicine, ecology etc. popup.description2 The object of research is structural materials of the Subcritical Assembly (SCA) “Neutron Source” at the National Scientific Center “Kharkiv Institute of Physics and Technology” made of U-Mo, SAV-1, and W-Ti-Ta alloys. The purpose of the work is to develop and implement a methodology for studying the mechanical properties and radiation damage of structural material samples after irradiation in the active zone of a subcritical assembly. The research method is the study of the mechanical properties of structural materials in the hot chambers of the neutron source facility. A theoretical and experimental study of the mechanical properties and radiation damage of structural materials, such as embrittlement, bending, and strengthening, was conducted. It has been shown that the resource of the tungsten target of the neutron source of the NSC KIPT can be 3.5-4 years of continuous operation at full power of the accelerator-driver. An assessment of the expected resource of the uranium target under irradiation has been carried out. Taking into account the effect of multi-cycle fatigue and the dependence of embrittlement at burn-ups of more than 0.2%, the planned service life of the target is 3 years at full accelerator power. There are practically no advantages of the uranium-molybdenum alloy over natural uranium in terms of plastic properties. Product Description popup.authors Andrii Zelinsky Borys Borts Igor Ushakov Oleksandr Parkhomenko Oleksandr Vanzha Andrii MYTSYKOV Fedor Peev Volodymyr Sytin Yurii Marchenko Ihor Karnaukhov Igor Vorobiov Vadym Liashchenko Viktor Bykov Viktor Shershnev Dmytro Krapiva Vitalii Selivanov Oleksandr Nevara Olexander Reyezaev Vadym Rudenko Igor Karnaukhov Oleksandr Gevchuk Olha Zvonareva Valentyna Shpagina Oleksii Cherkashyn Dmytro Tarasov Oleksandr Gordiienko Oleksandr Bezditko popup.nrat_date 2026-01-17 Close