Charting the course towards dimensional measurement traceability by x-ray computed tomography

Long synonymous with medical imaging, x-ray computed tomography (CT) is proving its worth in industrial applications such as material characterization, defect analysis, and dimensional inspection e.g. of manufactured components. Since 2005, when the first purpose-built CT instrument was made commercially available, there have been significant efforts to understand just how reliable measurements are. In metrology, ultimate measure confidence metrological traceability—a clearly-defined but often not well-understood property a measurement result. Metrological traceability places on comparable scale provides quantitative indication quality form an uncertainty statement. From practical perspective, achieving can be divided into two tasks: (a) ensuring which are (b) assessing resulting quantity assigned measurand. Based this breakdown problem, we provide high-level discussion about measurements, review relevant work understanding uncertainty, propose framework for model-based assessment per Monte Carlo Simulation method calibration unified approach traceability.