ACES WP5: Post-irradiation characterization of High-dose aggregate samples using light optical and electron microscopy techniques

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F23%3AN0000200" target="_blank" >RIV/26722445:_____/23:N0000200 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

ACES WP5: Post-irradiation characterization of High-dose aggregate samples using light optical and electron microscopy techniques

Original language description

The irradiation of aggregate discs specimens was done in the LVR-15 test reactor in Research Centre Řež. Neutron fluence accumulated in the samples was calculated from the individual fluxes and the reactor operation history. The obtained average neutron fluence for the High dose samples was 1.83E+19 n/cm2 (>1 MeV), the irradiation temperature during the three irradiation cycles did not exceed 57 °C. Post-irradiation examinations of irradiated discs, carried out in Hot Cell facility in CVR, included photographic record using light optical microscope, dedicated sample preparation for scanning electron microscopy and SEM-EDX analysis of prepared specimens. The main aim of the characterization was to provide additional information about the aggregate damage due to neutron irradiation, which can be observed on a micro-scale. Observed phenomena can have a direct impact on the physical and mechanical properties of aggregates and can help explain measurable volumetric changes, changes in relative dynamic modulus and compressive strength.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

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

Project

<a href="/en/project/LM2023041" target="_blank" >LM2023041: Czech International Centre of Research Reactors</a><br>

Continuities

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

Publication year

2023

Confidentiality

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