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Registration Number

0226U000891, (0121U109181) , R & D reports

Title

Study of the physical processes in nuclear sub-critical facilities driven with particle accelerators

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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"

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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.

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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

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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

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2026-01-17