OverviewThe HTHA probes help in earlier and more reliable detection of High-Temperature Hydrogen Attack. Detecting HTHA early and reliably is challenging; time-of-flight diffraction (TOFD), focused phased array (PA), and the total focusing method (TFM), especially using Dual Linear Array™ (DLA) probes, are effective techniques. OmniScan™ X4 flaw detector fully supports TOFD, focused PA, TFM and phase coherence imaging (PCI) and offers onboard software tools to ease setup and analysis.OmniScan X4 — Key inspection capabilitiesIntegrated DLA probe configuration and scanner configurationHigh-resolution TFM images (up to 1024 × 1024 points)Software tools to optimize TFM inspection: scan plan with AIM model, automatic TCG, sparse firing, soft gain and palette slider, live TFM envelope and image filters, gates, and alarms64-element TFM aperture and 128-element extended TFM aperture (OmniScan X4 64:128PR model)Phase coherence imaging (PCI) to enhance small defects and crack tips (all OmniScan X4 units)Acquire up to 8 TOFD and phased array groups simultaneously for efficient screeningAcquire and display up to 4 TFM and PCI groups at oncePlane wave imaging (PWI) available with TFM and PCI (using OmniScan X4 with linear array probes)A38 and A28 Dual Linear Array™ Angle-Beam ProbesHigh-sensitivity 10 MHz dual arrays in pitch-catch configurationSmall element pitch enables clear TFM imaging and wide-angle coverage of the weld and heat-affected zone (HAZ)