Radial fast-neutron fluence gradients during rotating Ar-40/Ar-39 sample irradiation recorded with metallic fluence monitors and geological age standards
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F15%3A%230001062" target="_blank" >RIV/26722445:_____/15:#0001062 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1002/2014GC005611" target="_blank" >http://dx.doi.org/10.1002/2014GC005611</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/2014GC005611" target="_blank" >10.1002/2014GC005611</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Radial fast-neutron fluence gradients during rotating Ar-40/Ar-39 sample irradiation recorded with metallic fluence monitors and geological age standards
Popis výsledku v původním jazyce
Characterizing the neutron-irradiation parameter J is one of the major uncertainties in Ar-40/Ar-39 dating. The associated uncertainty of the individual J-value for a sample of unknown age depends on the accuracy of the age of the geological standards, the fast-neutron fluence distribution in the reactor, and the distances between standards and samples during irradiation. While it is generally assumed that rotating irradiation evens out radial neutron fluence gradients, we observed axial and radial variations of the J-values in sample irradiations in the rotating channels of two reactors. To quantify them, we included three-dimensionally distributed metallic fast (Ni) and thermal-(Co) neutron fluence monitors in three irradiations and geological age standards in three more. Two irradiations were carried out under Cd shielding in the FRG1 reactor in Geesthacht, Germany, and four without Cd shielding in the LVR-15 reactor in Rez, Czech Republic. The Ni-58(nf,p)Co-58 activation reaction a
Název v anglickém jazyce
Radial fast-neutron fluence gradients during rotating Ar-40/Ar-39 sample irradiation recorded with metallic fluence monitors and geological age standards
Popis výsledku anglicky
Characterizing the neutron-irradiation parameter J is one of the major uncertainties in Ar-40/Ar-39 dating. The associated uncertainty of the individual J-value for a sample of unknown age depends on the accuracy of the age of the geological standards, the fast-neutron fluence distribution in the reactor, and the distances between standards and samples during irradiation. While it is generally assumed that rotating irradiation evens out radial neutron fluence gradients, we observed axial and radial variations of the J-values in sample irradiations in the rotating channels of two reactors. To quantify them, we included three-dimensionally distributed metallic fast (Ni) and thermal-(Co) neutron fluence monitors in three irradiations and geological age standards in three more. Two irradiations were carried out under Cd shielding in the FRG1 reactor in Geesthacht, Germany, and four without Cd shielding in the LVR-15 reactor in Rez, Czech Republic. The Ni-58(nf,p)Co-58 activation reaction a
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
JF - Jaderná energetika
OECD FORD obor
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Návaznosti výsledku
Projekt
<a href="/cs/project/LM2010015" target="_blank" >LM2010015: Reaktory Řež - Experimentální jaderné reaktory LVR-15 a LR-0</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2015
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Geochemistry Geophysics Geosystems
ISSN
1525-2027
e-ISSN
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Svazek periodika
16
Číslo periodika v rámci svazku
1
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
10
Strana od-do
336-345
Kód UT WoS článku
000349839000019
EID výsledku v databázi Scopus
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