Neutron radiation characteristics of the IVth generation reactor spent fuel

Sergey Bedenko, Igor Shamanin, Victor Grachev, Vladimir Knyshev, Olesya Ukrainets, Andrey Zorkin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Exploitation of nuclear power plants as well as construction of new generation reactors lead to great accumulation of spent fuel in interim storage facilities at nuclear power plants, and in spent fuel «wet» and «dry» long-term storages. Consequently, handling the fuel needs more attention. The paper is focused on the creation of an efficient computational model used for developing the procedures and regulations of spent nuclear fuel handling in nuclear fuel cycle of the new generation reactor. A Thorium High-temperature Gas-Cooled Reactor Unit (HGTRU, Russia) was used as an object for numerical research. Fuel isotopic composition of HGTRU was calculated using the verified code of the MCU-5 program. The analysis of alpha emitters and neutron radiation sources was made. The neutron yield resulting from (α,n)-reactions and at spontaneous fission was calculated. In this work it has been shown that contribution of (α,n)-neutrons is insignificant in case of such (Th,Pu)-fuel composition and HGTRU operation mode, and integral neutron yield can be approximated by the Watt spectral function. Spectral and standardized neutron distributions were achieved by approximation of the list of high-precision nuclear data. The distribution functions were prepared in group and continuous form for further use in calculations according to MNCP, MCU, and SCALE.

Original languageEnglish
Title of host publicationIV International Conference for Young Scientists, Post-Graduate Students and Students - Isotopes
Subtitle of host publicationTechnologies, Materials and Application, ITMA 2017
EditorsLiudmyla Rieznichenko, Li Hongda, Anna Godymchuk
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735416307
DOIs
Publication statusPublished - 14 Mar 2018
Event4th International Conference for Young Scientists, Post-Graduate Students and Students - Isotopes: Technologies, Materials and Application, ITMA 2017 - Tomsk, Russian Federation
Duration: 30 Oct 20173 Nov 2017

Publication series

NameAIP Conference Proceedings
Volume1938
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference4th International Conference for Young Scientists, Post-Graduate Students and Students - Isotopes: Technologies, Materials and Application, ITMA 2017
CountryRussian Federation
CityTomsk
Period30.10.173.11.17

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Bedenko, S., Shamanin, I., Grachev, V., Knyshev, V., Ukrainets, O., & Zorkin, A. (2018). Neutron radiation characteristics of the IVth generation reactor spent fuel. In L. Rieznichenko, L. Hongda, & A. Godymchuk (Eds.), IV International Conference for Young Scientists, Post-Graduate Students and Students - Isotopes: Technologies, Materials and Application, ITMA 2017 [020001] (AIP Conference Proceedings; Vol. 1938). American Institute of Physics Inc.. https://doi.org/10.1063/1.5027208