Activation Rates Validation to Support MSR Development

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F19%3AN0000189" target="_blank" >RIV/26722445:_____/19:N0000189 - isvavai.cz</a>

Výsledek na webu

<a href="https://ans.org/pubs/transactions/a_45520" target="_blank" >https://ans.org/pubs/transactions/a_45520</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Activation Rates Validation to Support MSR Development

Popis výsledku v původním jazyce

Molten Salt Reactor (MSR) technology gains higher attention as some of the reactor concepts with smaller power tend to reach commercial maturity. Research Centre Řež (Czech Republic) considers MSRs as a crucial part of the research program with more than two decades of expertise. Unique infrastructure enables large variety of experiments in the fields of physical- and radiochemistry as well as reactor experiments. Current summary refers about latest advances in reactor physics experiments. Past measurements reported in 1 and 2 showed the similarity of the fast spectrum in different fluoride salts and the TEFLON insertion proving that fluorine is the main component driving the fast neutron spectrum shape with conclusion that the TEFLON material can be as good material for mock-up reactor experiments as fluoride salts. After this finding, question originated whether the filtered neutron spectrum of the light-water research reactor LR-0 is good enough to simulate neutronic conditions in the MSR. Further calculations aimed at neutron spectrum characterization showed that even the fluoride salt insertion (or filter) in the light-water research reactor is suitable to replicate the spectrum in molten salt reactor (see 3). From that reason, work 3 suggests several types of reactions transformed into spectral indices which are sensitive to changes in neutron spectrum and the calculated results in filtered light-water reactor spectrum are comparable with calculated molten salt reactor spectrum. Many of these reactions were measured in the LR-0 light-water reactor with TEFLON insertion recently and experimental results are shown in this work.

Název v anglickém jazyce

Activation Rates Validation to Support MSR Development

Popis výsledku anglicky

Molten Salt Reactor (MSR) technology gains higher attention as some of the reactor concepts with smaller power tend to reach commercial maturity. Research Centre Řež (Czech Republic) considers MSRs as a crucial part of the research program with more than two decades of expertise. Unique infrastructure enables large variety of experiments in the fields of physical- and radiochemistry as well as reactor experiments. Current summary refers about latest advances in reactor physics experiments. Past measurements reported in 1 and 2 showed the similarity of the fast spectrum in different fluoride salts and the TEFLON insertion proving that fluorine is the main component driving the fast neutron spectrum shape with conclusion that the TEFLON material can be as good material for mock-up reactor experiments as fluoride salts. After this finding, question originated whether the filtered neutron spectrum of the light-water research reactor LR-0 is good enough to simulate neutronic conditions in the MSR. Further calculations aimed at neutron spectrum characterization showed that even the fluoride salt insertion (or filter) in the light-water research reactor is suitable to replicate the spectrum in molten salt reactor (see 3). From that reason, work 3 suggests several types of reactions transformed into spectral indices which are sensitive to changes in neutron spectrum and the calculated results in filtered light-water reactor spectrum are comparable with calculated molten salt reactor spectrum. Many of these reactions were measured in the LR-0 light-water reactor with TEFLON insertion recently and experimental results are shown in this work.

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

<a href="/cs/project/TH02020113" target="_blank" >TH02020113: Výzkum a vývoj technologie jaderných reaktorů chlazených fluoridovými solemi</a><br>

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

Transactions of the American Nuclear Society Volume 120, 2019, Pages 921-922, 2019

ISBN

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ISSN

0003-018X

e-ISSN

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Počet stran výsledku

2

Strana od-do

921-922

Název nakladatele

American Nuclear Society

Místo vydání

La Grange Park, Illinois 60526 U.S.A.

Místo konání akce

Minneapolis, Minnesota, USA

Datum konání akce

13. 6. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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