Measurement of gamma field inside the biological concrete shielding of VVER-1000 Mock-Up at the LR-0 reactor

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F25%3AN0000065" target="_blank" >RIV/26722445:_____/25:N0000065 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/25:00380692 RIV/00216224:14330/25:00143689
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0306454924006625" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0306454924006625</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.anucene.2024.110999" target="_blank" >10.1016/j.anucene.2024.110999</a>

Result language
angličtina
Original language name
Measurement of gamma field inside the biological concrete shielding of VVER-1000 Mock-Up at the LR-0 reactor
Original language description
The long-term operation of existing nuclear power reactors is a crucial concern due to the complexities and expenses associated with replacing key components, such as the reactor pressure vessel and reactor internals. Gamma radiation, a byproduct of nuclear reactions and radioactive decay, significantly influences the lifetime of these components. This radiation is responsible for various degradation pathways leading to void swelling in steel reactor components and cracking or other radiation damage in concrete structures. A study conducted at a full-scale mock-up of the VVER-1000 reactor at the LR-0 zero-power reactor employed HPGe and stilbene measurements to analyze gamma spectra behind the reactor pressure vessel and within concrete biological shielding. While simulations behind the reactor pressure vessel aligned with measurements, notably, a marked overestimation of stilbene spectrum calculations occurred deep in concrete, suggesting potential inaccuracies in radiation predictions for power plant structures.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20305 - Nuclear related engineering; (nuclear physics to be 1.3);

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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