Determination of extensive set dosimetric reaction rates for testing of the neutron spectrum unfolding codes

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Determination of extensive set dosimetric reaction rates for testing of the neutron spectrum unfolding codes

Popis výsledku v původním jazyce

Extensive validation of cross sections was carried out in years 2015 – 2018 in the reference neutron field of the experimental light water reactor LR-0. In frame of these validation experiments, set of precisely measured reaction rates was obtained. It was found that several of these reaction rates can be used for the characterization of neutron spectrum in advanced reactors, which have very similar spectrum as the spectrum in the large void channel of the experimental light water reactor. Presented work summarizes the reaction rates measured in the high-energy neutrons tail, shows the neutron spectrum reconstruction form these points, and proposes their ratios, so called spectral indices [xxGriffin], for neutron spectrum characterization. The reaction rate set can be used for neutron spectrum reconstruction which can support or serve as independent validation of neutron spectrometry based on active systems, if there is sufficient amount of measured points, given by the different reaction energy.

Název v anglickém jazyce

Determination of extensive set dosimetric reaction rates for testing of the neutron spectrum unfolding codes

Popis výsledku anglicky

Extensive validation of cross sections was carried out in years 2015 – 2018 in the reference neutron field of the experimental light water reactor LR-0. In frame of these validation experiments, set of precisely measured reaction rates was obtained. It was found that several of these reaction rates can be used for the characterization of neutron spectrum in advanced reactors, which have very similar spectrum as the spectrum in the large void channel of the experimental light water reactor. Presented work summarizes the reaction rates measured in the high-energy neutrons tail, shows the neutron spectrum reconstruction form these points, and proposes their ratios, so called spectral indices [xxGriffin], for neutron spectrum characterization. The reaction rate set can be used for neutron spectrum reconstruction which can support or serve as independent validation of neutron spectrometry based on active systems, if there is sufficient amount of measured points, given by the different reaction energy.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20305 - Nuclear related engineering; (nuclear physics to be 1.3);

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

International Conference on Mathematics Computational Methods and Reactor Physics (M&C 2019)

ISBN

978-0-89448-769-9

ISSN

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e-ISSN

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Počet stran výsledku

11

Strana od-do

1061-1071

Název nakladatele

American Nuclear Society

Místo vydání

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Místo konání akce

Portland, USA

Datum konání akce

25. 8. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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