Arctic: ecology and economy
ISSN 2223-4594 | ISSN 2949-110X
Home Archive of journals Volume 14, No. 1, 2024 Activity and isotopic composition of radionuclides accumulated in the FNPP reactors during the full lifecycle


JOURNAL: Volume 14, No. 1, 2024, p. 4-11

HEADING: Research activities in the Arctic

AUTHORS: Antipov, S.V., Bilashenko, V.P., Kobrinskiy, .N.

ORGANIZATIONS: Nuclear Safety Institute of the Russian Academy of Sciences

DOI: 10.25283/2223-4594-2024-1-4-11

UDC: 621.039.553.5

The article was received on: 28.12.2023

Keywords: Russian Arctic zone, floating thermal nuclear power plant, radiation safety, Northern Sea Route, technogenic radionuclides, radionuclide accumulation

Bibliographic description: Antipov, S.V., Bilashenko, V.P., Kobrinskiy, .N. Activity and isotopic composition of radionuclides accumulated in the FNPP reactors during the full lifecycle. Arktika: ekologiya i ekonomika. [Arctic: Ecology and Economy], 2024, vol. 14, no. 1, pp. 4-11. DOI: 10.25283/2223-4594-2024-1-4-11. (In Russian).


The authors have estimated the activity and composition of radionuclides accumulated in the reactors of the floating nuclear thermal power plant (FNPP) upon completion of the last fuel run. An analysis of the previously occurred criticality events at transport nuclear power facilities has shown that the most harmful consequences for the population and environment arise due to the self-sustain chain reaction (SCR) with depressurized reactor. Such an event can occur at a floating nuclear power plant (FNPP). The researchers have obtained estimates for the KLT-40S reactor using the calculation for the KLT-40 reactor. They have taken into account the design-base power production, fuel enrichment, as well as the FNPP service life.

Finance info: The work is supported by the Russian Science Foundation grant No. 2019-00615-P Research into Radioecological Problems of the Russian Arctic in Order to Enhance Radiation and Ecological Safety of Humans and Environment when Intensively Using Offshore and Onshore Nuclear Power Plants for the Region Advanced Development.


1. Fundamentals of the state policy of the Russian Federation in the Arctic for the period up to 2035 (approved by Decree of the President of the Russian Federation dated May 3, 2020 no. 164. Available at: http://publication.pravo.gov.ru/Document/View/0001202003050019?index=1. (In Russian).

2. Development Strategy of the RF Arctic Zone and Provision of National Security for the Period up to 2035 (affirmed by the RF President decree dated October 26, 2020 no. 645). Available at: http://publication.pravo.gov.ru/Document/View/ 0001202010260033. (In Russian).

3. A unified action plan for the implementation of the fundamentals of the state policy of the Russian Federation in the Arctic for the period up to 2035 and the Strategy for the development of the Arctic Zone of the Russian Federation and ensuring national security for the period up to 2035 (approved by Order of the Government of the Russian Federation dated April 15, 2021 No. 996-r as amended by Order of the Government of the Russian Federation dated May 5, 2022 no. 1158-p). Available at: http://publication.pravo.gov.ru/Document/View/0001202104200007. (In Russian).

4. The Northern Sea Route Development Plan up to 2035 (affirmed by the order of the RF Government dated August 1, 2022, no. 2115-r). Available at: http://static.government.ru/media/files/StA6ySKbBceANLRA6V2sF6wbOKSyxNzw.pdf. (In Russian).

5. https://rosacademtrans.ru/wp-content/uploads/2022/08/4p_karta_sev_mor1_439.jpg.

6. http://pro-arctic.ru/wp-content/uploads/2017/09/5828.jpg.

7. Sarkisov A. A., Antipov S. V., Vysotsky V. L., Pripachkin D. A. et al. Radiation and radiological consequences of a hypothetical nuclear accident at a nuclear facility positional-home district of Atomflot. Atomic Energy, 2023, vol. 133, iss. 4, pp. 240—249. DOI: 10.1007/s10512-023-01003-5.

8. Sarkisov A. A., Antipov S. V., Smolentsev D. O. et al. Low-power nuclear power plants in the context of electric power systems transformation. Izvestiya Vuzov. Yadernaya Energetika, 2020, no. 4, pp. 5—14. DOI: 10.26583/npe.2020.4.01. (In Russian).

9. Naumov V. A., Gusak S. A., Naumov A. V. Small Nuclear Power Plants for Power Supply to the Arctic Regions: Spent Nuclear Fuel Radioactivity Assessment. Izvestiya Vuzov. Yadernaya Energetika, 2018, no. 1, pp. 75—86. Available at: https://doi.org/10.26583/npe.2018.1.08. (In Russian).

10. http://www.deepstorm.ru/DeepStorm.files/45-92/nbrs/667AM/k140/ k140.htm.

11. Sarkisov A. A., Vysotskii V. L. The nuclear accident aboard a nuclear submarine in Chazhma bay: event reconstruction and analysis of the consequences. Herald of the Russian Academy of Sciences, 2018, vol. 88, no. 4, pp. 254—271. DOI: 10.1134/S1019331618040068.

12. Høibraten S. Risk assessments for non-defuelled, decommissioned nuclear submarines // Analysis of Risks Associated with Nuclear Submarine Decommissioning, Dismantling and Disposal. Ed. by Ashot A. Sarkisov and Alain Tournyol du Clos. Dordrecht / Boston / London, Kluwer Academic Publ., 1999, pp. 53—64.

13. Bartolomei G. G., Bat’ G. A., Baibakov V. D. et al. Theory principles and design methods for nuclear power reactors. Ed. by G. A. Bat’. Moscow, Energoizdat, 1982, p. 511. (In Russian).

14. Mazokin V. A., Netecha M. Ye., Orlov Yu. V., Yezovit E. S. Radiation Factors Determining the Safety of Handling Reactor Compartments when Decommissioning Nuclear Submarines. Nuclear Submarine Decommissioning and Related Problems. Ed. by L. G. LeSage and A. A. Sarkisov. Dordrecht / Boston / London, Kluwer Academic Publi., 1996, pp. 277—288.

15. Accident at the Chernobyl NPP and its consequences // Information prepared for IAEA exprt meeting (August 25—29, 1986, Wien). GKIAE (State Committee for Usage of Nuclear Energy), 1986. (In Russian).

Download »

© 2011-2024 Arctic: ecology and economy
DOI 10.25283/2223-4594