Position evaluation of ex-core neutron flux measurement in new type graphite reactors

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dc.contributor.authorVilímová, Eva
dc.contributor.authorPeltan, Tomáš
dc.contributor.authorŠkoda, Radek
dc.date.accessioned2023-01-16T11:00:19Z
dc.date.available2023-01-16T11:00:19Z
dc.date.issued2021
dc.description.abstract-translatedSeveral concepts of new reactors use graphite. Some of them use graphite as a moderator, some of them as a reflector. There are at least two concepts of these graphite-type reactors under development in the Czech Republic. Both reactors use graphite as the reflector. An in-core measurement might be impossible to use because of various reasons, for instance, high temperature or aggressive environment. Therefore, this article focuses on ex-core neutron flux measurement system placed in the graphite reflector and the optimization of ex-core detector position. A set of experiments were performed at LR-0 reactor. The LR-0 is a light water reactor with a well-defined neutron field, which can be used for different material insertion tests and testing of its influence on criticality. Several modifications of LR-0 cores were modelled in Monte Carlo codes Serpent and KENO. A set of calculations were performed for verification of the criticality and neutron flux course in the reactor core and graphite reflector. Further investigation was focused on the influence of the presence of a graphite reflector on the neutron distribution in the reactor core. The LR-0 graphite experiments were also used to verify the calculations. Based on the results of this article, the optimal position of ex-core detectors in the graphite reflector is proposed.en
dc.format4 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationVILÍMOVÁ, E. PELTAN, T. ŠKODA, R. Position evaluation of ex-core neutron flux measurement in new type graphite reactors. In EPJ Web of Conferences. Praha: EDP Sciences, 2021. s. 1-4. ISBN: neuvedenocs
dc.identifier.isbnneuvedeno
dc.identifier.obd43937457
dc.identifier.urihttp://hdl.handle.net/11025/50950
dc.language.isoenen
dc.project.IDTK01030103/Ex-core měření neutronového toku pro reaktory IV. generacecs
dc.project.IDSGS-2021-018/Analýza, simulace a pokročilé vyhodnocení dodávky a spotřeby elektrické energie při dodržení optimálních spolehlivostních a kvalitativních parametrů s respektováním integrace obnovitelných zdrojů, akumulace a elektromobility do elektrizační soustavy při využití aktuálních, inovativních metod teoretického a aplikačního výzkumu v elektroenergeticecs
dc.publisherEDP Sciencesen
dc.relation.ispartofseriesEPJ Web of Conferencesen
dc.rights© authorsen
dc.rights.accessopenAccessen
dc.subject.translatedex-core measurementen
dc.subject.translatedneutron fluxen
dc.subject.translatedgraphite reflectoren
dc.subject.translatedSerpenten
dc.subject.translatedKENOen
dc.titlePosition evaluation of ex-core neutron flux measurement in new type graphite reactorsen
dc.typekonferenční příspěvekcs
dc.typeConferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

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