Results of Experiments under the Physical Start-Up Program of the IVG.1M Reactor

Radmila Sabitova (), Yuri Popov, Ruslan Irkimbekov, Irina Prozorova, Ildar Derbyshev, Erlan Nurzhanov, Artur Surayev, Vyacheslav Gnyrya and Almas Azimkhanov
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Radmila Sabitova: School of Nuclear Science and Engineering, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
Yuri Popov: School of Nuclear Science and Engineering, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
Ruslan Irkimbekov: School of Nuclear Science and Engineering, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
Irina Prozorova: School of Nuclear Science and Engineering, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
Ildar Derbyshev: School of Nuclear Science and Engineering, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
Erlan Nurzhanov: School of Nuclear Science and Engineering, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
Artur Surayev: School of Nuclear Science and Engineering, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
Vyacheslav Gnyrya: School of Nuclear Science and Engineering, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
Almas Azimkhanov: School of Nuclear Science and Engineering, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia

Energies, 2023, vol. 16, issue 17, 1-12

Abstract: In 2022, the physical start-up stage of the IVG.1M research reactor was successfully completed, initiated by reducing the fuel enrichment of 235 U. This phase included the loading of nuclear fuel into the reactor core and conducting experiments to determine the neutron-physical characteristics of the reactor. Prior to the physical start-up, preliminary calculations were performed using the computational code MCNP6 and a full-scale model of the IVG.1M reactor with low-enriched uranium fuel (LEU). During the start-up series, the reactivity worth curves of the reactor control and protection system’s operating and compensating elements were determined. Additionally, experiments were performed to measure the reactivity effects of technological channel draining and to obtain activation reaction rates in the central experimental channel using nickel and gold activation indicators. The results of determining the neutron-physical characteristics of the IVG.1M reactor have confirmed the operability of the reactor core with LEU fuel.

Keywords: reactor; reactivity worth; fuel conversion; physical start-up; low enriched uranium (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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