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Registration Number

0226U000890, (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 з напрацювання радіоізотопів 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 the Subcritical Assembly (SCA) “Neutron Source” based on a subcritical assembly controlled by a linear electron accelerator. The purpose of the work is to develop and carry out research based on the Neutron Source NSI, develop methods and conduct research on the production of radioisotopes in the active zone of the subcritical assembly. Estimates were obtained for the activities of radioisotopes formed in 10 g of molybdenum oxide powder MoO3 and in an aluminum container after 5 hours of irradiation. The formation of various radioactive nuclei (with a half-life of more than 1 hour) in more than 100 reactions on natural molybdenum nuclei and impurities in molybdenum and an aluminum container during irradiation in the neutron spectrum was considered. The main contribution to the activity of the irradiated MoO3 sample at the end of irradiation is made by the target isotopes 99Mo and 99mTc. An assessment was made of the activity of radioactive waste accumulated during one year of operation in the production of the radiopharmaceutical “Sodium pertechnetate [99mTc] extraction”. In total, over the course of a year, with a constant work schedule, irradiation of MoO3 samples and aluminum containers is expected. In total, about 9 liters of liquid radioactive waste will accumulate during the year, with a total activity at the end of the year of about 0.45 GBq and a specific activity of ~50 MBq/l.

Product Description

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Borys Borts
Igor Ushakov
Andrii Zelinsky
Andrii MYTSYKOV
Fedor PeeV
Volodymyr Voronko
Oleksandr Parkhomenko
Volodymyr Sotnikov

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2026-01-17