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Research and Applications Development (RAD) Group

We don't wait for new innovations, we engineer them. From concept to commissioning.

The Research and Applications Development (RAD) group is a newly formed team within Acuren dedicated to tackling challenging inspection problems. Our focus is the development of novel, field deployable, advanced inspection techniques for use in cases where standard nondestructive testing (NDT) methods are ineffective.

The RAD team is composed of researchers with expertise in:

  • Eddy Current/Eddy Current Array/Pulsed Eddy Current Testing (ECT/ECAT/PEC)
  • Phased Array Ultrasonic Testing (PAUT)
  • Full-Matrix Capture/Total Focusing Method (FMC/TFM)
  • High temperature inspections
  • Probability of Detection studies (POD)
  • Signal processing
  • Image processing
  • Modelling of ultrasonic and eddy current inspections
  • Modal analysis/vibrations testing
  • Material characterization
  • Fracture mechanics
  • Bond testing
  • Machine learning
  • Wedge/calibration block/scanner design
  • NDT procedure development

Services offered by the RAD team include:

  • Technique and procedure development for Eddy Current/Eddy Current Array/Pulsed Eddy Current, Phased Array Ultrasonic Testing based inspections at ambient and elevated temperatures: RAD can develop an inspection technique from scratch all the way through to code qualified. Our team will find the optimal inspection parameters using a combination of modelling (CIVA/COMSOL/Beamtool) and experiment, as well as provide setups, calibration procedures and a full POD/sizing accuracy study to fully evaluate the proposed solution (as required). We also have intimate familiarity with all relevant codes and procedures required for technique qualification.
  • Full-Matrix Capture/Total Focusing Method based technique development/refinement: RAD has been working with FMC/TFM for over 3 years and has gained considerable insight into how to best optimize FMC based inspection techniques. RAD can recommend the best probe/wedge/acquisition unit combinations as well as the best rendering paths to make any FMC based inspection successful.
  • Design and manufacture of ultrasonic wedges (including high temperature wedges), calibration blocks and scanning equipment: the RAD team has considerable experience in the design of NDT equipment/apparatus with in house machining and fast prototyping capabilities.
  • Probability of detection and sizing accuracy studies: full validation of any NDT technique using Eclipse Scientific’s STATUS POD software.
  • Ultrasonic characterization of materials: precise measurement of acoustic velocities, attenuation and dispersion characteristics of any test specimen.
  • Feasibility studies: short term proof of concept type studies, aimed at providing customers with evidence that a proposed inspection methodology is likely to be successful and is worth further research.
  • High Resolution UT Immersion Scanning: RAD has a fully equipped, multi-axis immersion tank scanning system and can provide high resolution ultrasonic inspection of complex parts.
  • Custom Software and Algorithm Design: RAD’s expertise in signal/image processing and machine learning applied to NDT inspections coupled with Eclipse Scientific’s industry leading software team can provide customized solutions for the acquisition, processing and analysis of NDT data.

Full Matrix Capture (FMC) Inspection of Fillet Welds for lack of fusion detection

RAD team developed an inspection system based on Full Matrix capture data acquisition and Total Focusing Method (TFM) imaging algorithm for volumetric inspection of the fillet welds, detection of lack of fusion and quantifying/sizing disboning on the weld fusion face.

  • Inspection technique was developed and optimized using CIVA models.
  • Designed wedges were manufactured.
  • Custom scanner was developed for scanning small fillet welds.
  • Inspection procedure was developed for field deployment.
  • Analysis procedure was developed for inspection data analysis.
  • Technique was successfully deployed in field for the customer.
  • Automated detection and sizing algorithms developed and proven effective.


Design and qualify of a Phased Array Ultrasonic Testing (PAUT) inspection tooling for full volumetric examination of tube welds.

RAD team in partnership with Acruen Nuclear Services, designed a tooling for phased array inspection of tube welds. The scope of work included:

In addition to ongoing funded research projects, the RAD team is also developing new technologies/techniques aimed at solving some of the most challenging inspection problems in the NDT industry as identified by Acuren’s subject matter experts. Our current research initiatives include:

Development of High Temperature FMC Inspection

Full matrix capture inspection is increasingly deployed in situations where high resolution scans offer benefits for detection and sizing of small defects. In particular, TFM images have been found to provide quantitative information regarding the progression of high temperature hydrogen attack (HTHA) at room temperature. Since HTHA is commonly found in reactors operating at elevated temperatures, there exists considerable interest in running FMC scans at temperatures above 200 Celsius. Having previously developed high temperature wedges/scanners for PAUT inspections, the RAD team is now investigating the potential of adapting these systems to FMC based inspections. Initial scans indicate that without applying any modifications to the TFM algorithm to compensate for temperature induced velocity gradients in the wedge and piece, FMC scans can be performed up to around 300 C with only minor distortions in the target images, as shown in the images below:


It is noted that the background noise increases considerably at high temperatures, that may interfere with the detection of HTHA which manifests as elevated material noise. The increase in background noise is likely caused by localized flashing of the high temperature couplant layer. Consequently, the team is looking into alternative coupling mechanisms capable of delivering better scan quality at very high temperatures. In addition, the team is working on modifying the delay calculations required for applying the TFM algorithm in the presence of a wedge velocity gradient using travel-time tomography. The end goal is to have a fully functional FMC/TFM system which can be deployed to obtain high resolution images of components at temperatures up to 350 C.

For more information, email us at rad@acuren.com
or call (800) 490-1073 and ask for one of our innovation experts