Title:	Characterisation of neutron field in large graphite insertion in special core of the LR-0 reactor
Authors:	Peltan, Tomáš Vilímová, Eva Czakoj, Tomáš Matěj, Zdeněk Mravec, Filip Cvachovec, František Šimon, Jan Juříček, Vlastimil Košťál, Michal
Citation:	PELTAN, T. VILÍMOVÁ, E. CZAKOJ, T. MATĚJ, Z. MRAVEC, F. CVACHOVEC, F. ŠIMON, J. JUŘÍČEK, V. KOŠŤÁL, M. Characterisation of neutron field in large graphite insertion in special core of the LR-0 reactor. ANNALS OF NUCLEAR ENERGY, 2023, roč. 181, č. February 2023, s. nestránkováno. ISSN: 0306-4549
Issue Date:	2023
Publisher:	Elsevier
Document type:	článek article
URI:	2-s2.0-85141502988 http://hdl.handle.net/11025/51904
ISSN:	0306-4549
Keywords in different language:	graphite cross-section validation;graphite shaped neutron field;reference neutron field;Monte Carlo simulation
Abstract in different language:	Graphite is important reactor material used as a neutron moderator in various reactor designs. It is not only structural material used in previous reactors design but even material to which attention is focused due to the very high-temperature reactor design, which uses graphite as moderator and reflector. Due to the wellcharacterised cross-section of graphite, it is also a good candidate for neutron shaping experiments. In this kind of experiment, the neutron spectra are modified to the unconventional shape of neutron spectra which can be used to validate cross-section. This paper deals with validation of neutron field in graphite block surrounded by driver core arranged in large special core in LR-0 reactor. The experimentally determined shape of neutron spectra and spatial distribution of neutron flux is compared with the calculation. It is worth noting that the agreement for flux distribution is satisfactory in regions below the moderator level.
Rights:	Plný text je přístupný v rámci univerzity přihlášeným uživatelům © Elsevier Ltd
Appears in Collections:	Články / Articles (KEE) OBD

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