Authors & Affiliations

Kamovich M.S., Stogov V.Yu., Gurskaya O.S.
A.I. Leypunsky Institute for Physics and Power Engineering, Obninsk, Russia

Kamovich M.S. – Research Engineer, A.I. Leypunsky Institute for Physics and Power Engineering. Contacts: 1, pl. Bondarenko, Obninsk, Kaluga region, Russia, 249033. Tel.: +7(484) 399-47-82; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Stogov V.Yu. – Senior Research, A.I. Leypunsky Institute for Physics and Power Engineering.
Gurskaya O.S. – Research, A.I. Leypunsky Institute for Physics and Power Engineering.

Abstract

To address the growing demand for isotopes, it is planned to use irradiation devices in high-power fast sodium reactors. With the help of this type of irradiation devices, mass production of the necessary isotopes is assumed.
The designs of irradiation devices for operating time of cobalt-60 isotope in BN reactors are pre-sented. A new version of the irradiation device for use in a high-power sodium fast reactor is proposed. The comparison of different variants of irradiation devices according to the obtained specific activity is given.
The new design of the irradiation device combines the retarder units and the steel protection developed for the BN-600 in a single assembly. It allows to achieve cobalt activity of 150 Сi/g for a campaign of fuel (5 years).
The results of a study of the azimuthal and radial distribution of the cobalt-60 formation speed to ensure the effective production of the product in a high-power reactor are presented. According to the results of the azimuthal distribution of the neutron capture rate, there is an uneven propagation in the horizontal section of the irradiation device. The maximum capture rate is shifted to the periphery of the irradiation device facing the center of the core. The obtained spatial distribution of the capture rate indicates the possibility of further work to create a more efficient design of the irradiation device for the conditions of a large fast reactor.

Keywords
cobalt, zirconium hydride, isotope operating time, irradiating device, target element, design ID, fast sodium reactor of big power

Article Text (PDF, in Russian)

References

UDC 621.039.51

Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2019, issue 2, 2:22