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Your search keyword '"Dekious, Ali"' showing total 2 results
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2 results on '"Dekious, Ali"'

1. <tex-math notation='LaTeX'>$In~Situ$ </tex-math> High-Resolution Measurement of HFR Nuclear Fuel Plates’ Spacing

Author

ZAZ, GHITA, Le Clezio, Emmanuel, Dekious, Ali, Alaoui, Meriem Chrifi, CALZAVARA, YOANN, Despaux, Gilles, INSA Euro-Méditerranée, Institut National des Sciences Appliquées (INSA), Institut d’Electronique et des Systèmes (IES), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Matériaux, MicroCapteurs et Acoustique (M2A), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Institut Laue-Langevin (ILL), and ILL

Subjects
[SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2018

2. In-situ high-resolution measurement of RHF nuclear fuel plates' spacing

Author

ZAZ, Ghita, Le Clézio, Emmanuel, Dekious, Ali, Chrifi Alaoui, Meriem, CALZAVARA, YOANN, Despaux, Gilles, INSA Euro-Méditerranée, Institut National des Sciences Appliquées (INSA), Institut d’Electronique et des Systèmes (IES), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Matériaux, MicroCapteurs et Acoustique (M2A), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Institut Laue-Langevin (ILL), and ILL

Subjects
ultrasonic transducer, HPRR, RHF, High frequency, high resolution, harsh environment, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract

International audience; Most of the High Performance Research Reactors (HPRR) are made of plates undergoing a limited swelling during irradiation. Measuring the fuel thickness or the inter-plate distance is then a promissing way to obtain information on the fuel element irradiation history. The experimental constraints are however quite heavy due to the aimed resolution and the element geometry. In order to perform such measurements, a high resolution ultrasonic device was designed. It was thinned down to 1 mm in order to be inserted into the reactor water-channel. The system is then excited with a 120 MHz central frequency burst and the distance measurement is carried out through the ultrasonic waves' time of flight estimation. A series of experiments was performed on a full size irradiated fuel element of the "Institut Laue-Langevin" reactor proving the feasibility of real-time in-situ measurements.

Published
2018

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