期刊论文详细信息
JOURNAL OF NUCLEAR MATERIALS 卷:530
Simulation of reactivity initiated accident thermal transients on nuclear fuels with laser remote heating
Article
Vidal, T.1  Gallais, L.1  Faucheux, J.2  Capdevila, H.2  Sercombe, J.2  Pontillon, Y.2 
[1] Aix Marseille Univ, Inst Fresnel, Cent Marseille, CNRS, Marseille, France
[2] CEA, Cadarache, DEC, DEN, F-13108 St Paul Les Durance, France
关键词: Nuclear fuels;    Uranium oxyde;    Annealing;   
DOI  :  10.1016/j.jnucmat.2019.151944
来源: Elsevier
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【 摘 要 】

The investigation on the behaviour of nuclear fuels under thermal loads representative of RIA (Reactivity Initiated Accident) conditions in nuclear reactors is a significant challenge. In this work we introduce a new concept of a laboratory experiment relying on high power lasers to reproduce the temperature gradients experienced by nuclear fuel pellets during such events. The concept is experimentally demonstrated on UO2 samples, supported with numerical simulations to estimate the temperature gradients within the samples. This is a first step in the perspective of applying the technique on irradiated fuels. (C) 2019 Elsevier B.V. All rights reserved.

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