The phased array ultrasonic technique provides enormous advantages over the
conventional ultrasound technique, mostly because of its ability to focus and steer the beam …

A simple and powerful design of an electromagnetic acoustic transducer (EMAT) without
bulky permanent magnets is presented. The EMAT is operated in a pulse echo modality and …

This paper describes the development of an in-house phased array EMAT transducer for
longitudinal wave inspection in liquid sodium. The work presented herein is part of an …

Within the framework of large R&D studies performed for the future sodium-cooled reactor
prototype called ASTRID, in-service inspection and repair (ISI&R) has been identified as a …

The paper discusses the numerical modeling of ultrasonic high frequency guided waves
(HFGW) for nondestructive inspection of main vessel core support structure (MV-CSS) in …

Ultrasonic guided wave techniques are seen as suitable candidates for the inspection of
welded structures within sodium cooled fast reactors (SFR), as the long range propagation …

Dissimilar metal welds (DMWs) between the main vessel pipeline and steam generators
joints in nuclear power plants are commonly inspected by Phased array ultrasonic testing …