2D Ultrasonic Antenna System for Imaging in Liquid Sodium
Open Access
- 8 October 2019
- Vol. 19 (19), 4334
- https://doi.org/10.3390/s19194334
Abstract
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.Keywords
This publication has 6 references indexed in Scilit:
- Ultrasonic Transducer for Non-Destructive Testing of Structures Immersed in Liquid Sodium at 200 °CSensors, 2019
- 2-D and 3-D Reconstruction Algorithms in the Fourier Domain for Plane-Wave Imaging in Nondestructive TestingIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2019
- Ultrasonic Imaging in Highly Attenuating Materials With Hadamard Codes and the Decomposition of the Time Reversal OperatorIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2017
- Plane Wave Imaging for ultrasonic non-destructive testing: Generalization to multimodal imagingUltrasonics, 2016
- Post-processing of the full matrix of ultrasonic transmit–receive array data for non-destructive evaluationNDT & E International, 2005
- 3-D Underwater Imaging SystemAcoustical Imaging, 1995