FMC/TFM Technique Design Using the FMC Beamset in BeamTool

Abstract

Eclipse Scientific’s BeamTool software has supported Full Matrix Capture/Total Focusing Method (FMC/TFM) technique design through the FMC Beamset since version 9.0 (released in 2017). With the release of BeamTool 10.1, however, the FMC Beamset now includes more sophisticated tooling to help users design FMC/TFM based inspection techniques – these include: Sensitivity, Focal Area and Resolution maps which together allow users to quickly assess how similar reflectors will be imaged (amplitude, shape, size) throughout the chosen region of interest. For each of these focal metrics, the absolute minimum and maximum values are provided along with other helpful derived quantities (amplitude fidelity, maximum sensitivity difference) which allows the influence of probe and wedge parameters to be compared directly. This document details what these new focal metrics are as well as how to use them to optimize FMC/TFM based techniques for various common applications. It is assumed that the reader is familiar with the principles of FMC/TFM and the BeamTool software.