Neutronic tests of fluoride salt based MSR/FHR coolants

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F17%3AN0000062" target="_blank" >RIV/26722445:_____/17:N0000062 - isvavai.cz</a>

Výsledek na webu

<a href="http://ansannual.org/wp-content/data/polopoly_fs/1.3583834.1494346734!/fileserver/file/768092/filename/364.pdf" target="_blank" >http://ansannual.org/wp-content/data/polopoly_fs/1.3583834.1494346734!/fileserver/file/768092/filename/364.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Neutronic tests of fluoride salt based MSR/FHR coolants

Popis výsledku v původním jazyce

Comparison of neutron spectrum measurements shows that the neutron spectrum above 0.1 MeV is comparable in both types of investigated salts. Some discrepancies surfaced between measured and calculated neutron flux spectra in energy ranges of 0.1–0.5 MeV and above 5 MeV. One possible explanation of these differences could be inaccuracies in the nuclear data, especially cross sections for salt constituents such as bound atoms of fluorine. S/U analyses show the system keff has relatively little sensitivity to both lithium and fluorine, but local flux effects in the salt target could still occur that do not perturb the overall system neutron multiplication. Future work will be needed to try to draw more firm conclusions in this area. Correct nuclear data in the fast neutron energy range are vital due to the complicated process of neutron slowing down in MSRs, especially for fast-spectrum MSR concepts. Any refinements to fast energy nuclear data could also impact other application areas in the nuclear industry, such as fuel enrichment.

Název v anglickém jazyce

Neutronic tests of fluoride salt based MSR/FHR coolants

Popis výsledku anglicky

Comparison of neutron spectrum measurements shows that the neutron spectrum above 0.1 MeV is comparable in both types of investigated salts. Some discrepancies surfaced between measured and calculated neutron flux spectra in energy ranges of 0.1–0.5 MeV and above 5 MeV. One possible explanation of these differences could be inaccuracies in the nuclear data, especially cross sections for salt constituents such as bound atoms of fluorine. S/U analyses show the system keff has relatively little sensitivity to both lithium and fluorine, but local flux effects in the salt target could still occur that do not perturb the overall system neutron multiplication. Future work will be needed to try to draw more firm conclusions in this area. Correct nuclear data in the fast neutron energy range are vital due to the complicated process of neutron slowing down in MSRs, especially for fast-spectrum MSR concepts. Any refinements to fast energy nuclear data could also impact other application areas in the nuclear industry, such as fuel enrichment.

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

2017

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 116

ISBN

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ISSN

0003-018X

e-ISSN

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Počet stran výsledku

3

Strana od-do

1167-1169

Název nakladatele

American Nuclear Society

Místo vydání

USA

Místo konání akce

San Francisco, USA

Datum konání akce

11. 6. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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