Introduction to “Realistic Simulation of real CT systems with a basic-qualified Simulation Software - CTSimU2

The lack of traceability to meter of X-ray Computed Tomography (CT) measurements still hinders a more extensive acceptance of CT in coordinate metrology and industry. To ensure traceable, reliable, and accurate measurements, the determination of the task-specific measurement uncertainty is necessary...

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Bibliographic Details
Published in:	E-journal of Nondestructive Testing Vol. 28; no. 3
Main Authors:	Reuter, Tamara, Borges de Oliveira, Fabrício, Abt, Christian, Ballach, Frederic, Bartscher, Markus, Bellon, Carsten, Dennerlein, Frank, Fuchs, Patrick, Günnewig, Olaf, Hausotte, Tino, Hess, Jonathan, Kasperl, Stefan, Maass, Nicole, Kimmig, Wolfgang, Schielein, Richard, Von Schmid, Mirko, Suppes, Alexander, Wagner, Georg, Watzl, Christia, Wohlgemuth, Florian
Format:	Journal Article
Language:	English
Published:	01-03-2023
Online Access:	Get full text
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Summary:	The lack of traceability to meter of X-ray Computed Tomography (CT) measurements still hinders a more extensive acceptance of CT in coordinate metrology and industry. To ensure traceable, reliable, and accurate measurements, the determination of the task-specific measurement uncertainty is necessary. The German guideline VDI/VDE 2630 part 2.1 [1] describes a procedure to determine the measurement uncertainty for CT experimentally by conducting several repeated measurements with a calibrated test specimen. However, this experimental procedure is cost and effort intensive. Therefore, the simulation of dimensional measurement tasks conducted with X-ray computed tomography can close these drawbacks. Additionally, recent developments towards a resource and cost-efficient production (“smart factory”) motivate the need for a corresponding numerical model of a CT system (“digital twin”) as well. As there is no standardized procedure to determine the measurement uncertainty of a CT system by simulation at the moment, the project series CTSimU was initiated, aiming at this gap. Concretely, the goal is the development of a procedure to determine the measurement uncertainty numerically by radiographic simulation. The first project (2019-2022), "Radiographic Computed Tomography Simulation for Measurement Uncertainty Evaluation - CTSimU" developed a framework to qualify a radiographic simulation software concerning the correct simulation of physical laws and functionalities [2-6]. The most important outcome was a draft for a new guideline VDI/VDE 2630 part 2.2, which is currently under discussion in the VDI/VDE committee. The follow-up project CTSimU2 "Realistic Simulation of real CT systems with a basic-qualified Simulation Software" will deal with building and characterizing a digital replica of a specific real-world CT system. The two main targets of this project will be a toolbox including methods and procedures to configure a realistic CT system simulation and to develop tests to check if this replica is sufficient enough. The result will be a draft for a follow-up VDI/VDE guideline proposing standardized procedures to determine a CT system's corresponding characteristics and test the simulation (copy) of a real-world CT system which we call a "digital twin".
ISSN:	1435-4934 1435-4934
DOI:	10.58286/27715