| Issue |
EPJ Web Conf.
Volume 225, 2020
ANIMMA 2019 – Advancements in Nuclear Instrumentation Measurement Methods and their Applications
|
|
|---|---|---|
| Article Number | 04006 | |
| Number of page(s) | 3 | |
| Section | Research Reactors | |
| DOI | https://doi.org/10.1051/epjconf/202022504006 | |
| Published online | 20 January 2020 | |
https://doi.org/10.1051/epjconf/202022504006
Radiation resistance of high frequency ultrasonic devices for distance measurement in the RHF
University of Montpellier CNRS, IES UMR 5214, CC 05 003,
860 Rue de Saint Priest,
F-34000,
Montpellier
Institute Laue Langevin - ILL,
71 Avenue des Martyrs,
F-38000,
Grenoble
Email: emmanuel.le-clezio@umontpellier.fr
Email: calzavara@ill.fr
Published online: 20 January 2020
The fuel element plates of research reactors are subjected to swelling phenomena. These structure modifications impact an initial inter-plate distance of 1.8 mm. An ultrasonic device has been developed to investigate this parameter. With a 1 mm thickness, it relies on two transducers linked to an electronic system. The feasibility of the distance measurement has been proved in a previous study and the irradiation impact on the transducer components is here studied. To do so, a radiation resistance experiment was realized in the Arc-Nucleart Institute of Grenoble. It allowed the study of the influence of radiations on the device active and passive components’ characteristics.
© The Authors, published by EDP Sciences, 2020
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