%0 Journal Article
%T 2D Ultrasonic Antenna System for Imaging in Liquid Sodium
%J Sensors | An Open Access Journal from MDPI
%D 2019
%R https://doi.org/10.3390/s19194334
%X Ultrasonic techniques are developed at CEA (French Alternative Energies and Nuclear Energy Commission) for in-service inspection of sodium-cooled reactors (SFRs). Among them, an ultrasound imaging system made up of two orthogonal antennas and originally based on an underwater imaging system is studied for long-distance vision in the liquid sodium of the reactor¡¯s primary circuit. After a description of the imaging principle of this system, some results of a simulation study performed with the software CIVA in order to optimize the antenna parameters are presented. Then, experimental measurements carried out in a water tank illustrate the system capabilities. Finally, the limitations of the imaging performances and the ongoing search of solutions to address them are discussed. View Full-Tex
%U https://www.mdpi.com/1424-8220/19/19/4334