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Advantages of a Fast Reactor Core Surrounded by a Physically Thick Neutron Reflector Made of Lead-208

  • THEORETICAL AND EXPERIMENTAL PHYSICS OF NUCLEAR REACTORS
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Abstract

In the paper, the influence of replacement of natural lead with lead-208 as a coolant and fast reactor reflector on its neutron-physical parameters is considered. The possibility of significantly increasing the mean prompt neutron lifetime by using lead-208 is shown. It is proposed to place a layer containing a neutron absorber over the core in its reflector to control the reactor reactivity. It is shown that when using lead-208, the efficiency of this layer is noticeably higher, and the Doppler effect is enhanced than when using natural lead.

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Authors and Affiliations

  1. National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 115409, Moscow, Russia

    A. N. Shmelev, V. A. Apse, G. G. Kulikov & E. G. Kulikov

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  1. A. N. Shmelev
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  2. V. A. Apse
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  3. G. G. Kulikov
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  4. E. G. Kulikov
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Correspondence to G. G. Kulikov.

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Translated by N. Semenova

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Shmelev, A.N., Apse, V.A., Kulikov, G.G. et al. Advantages of a Fast Reactor Core Surrounded by a Physically Thick Neutron Reflector Made of Lead-208. Phys. Atom. Nuclei 83, 1291–1296 (2020). https://doi.org/10.1134/S1063778820090240

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  • DOI: https://doi.org/10.1134/S1063778820090240

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