Radial fast-neutron fluence gradients during rotating Ar-40/Ar-39 sample irradiation recorded with metallic fluence monitors and geological age standards

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

Radial fast-neutron fluence gradients during rotating Ar-40/Ar-39 sample irradiation recorded with metallic fluence monitors and geological age standards

Original language description

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

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JF - Nuclear energy

OECD FORD branch

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Project

<a href="/en/project/LM2010015" target="_blank" >LM2010015: Reactors of Řež - Nuclear research reactors LVR-15 and LR-0</a><br>

Continuities

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

Publication year

2015

Confidentiality

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

Name of the periodical

Geochemistry Geophysics Geosystems

ISSN

1525-2027

e-ISSN

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Volume of the periodical

16

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

10

Pages from-to

336-345

UT code for WoS article

000349839000019

EID of the result in the Scopus database

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