A real world sample containing HTHA (High Temperature Hydrogen Attack) is examined using several techniques- 0- Degree Linear PAUT, negative 30 to positive 30 L- Wave Sectorial PAUT, Conventional TFM, and Phase Coherence Imaging TFM. Phase Coherence Imaging (PCI) was recently introduced on the OmniScan X3 instrument, and is shown here with a 5L64 transducer, contact, on a 3" thick sample.
