North Star Imaging published a full approach for X-ray inspection of multi-material assemblies, covering technique sheets, reconstruction, and analysis.

North Star Imaging ranks among the most sophisticated resources for digital real-time non-destructive testing (NDT) equipment, services, training, supplies and accessories. Highly-trained, innovative engineers design and build the complete line and custom state-of-the-art Digital X-ray and Computed Tomography (CT) systems. Recently, NSI was acquired by Illinois Tool Works (ITW). As the domestic leading manufacturer in the Nondestructive Testing Industry, NSI is highly recognized for Turn-Key 2D Digital X-ray as well as 3D X-ray CT. Industrial X-ray scanning is frequently used for R&D, Failure Analysis, Quality Control / Assurance, Internal Measurements, High-Speed 3D Scanning, 3D Metrology and more. X-ray scanning allows users to view and inspect both the external and internal structures of a part or object without opening it up or otherwise destroying the item. North Star Imaging's technology is used by many different markets including Medical Devices, Electronics, Aerospace, Castings, Plastics, Research and more. NSI's efX CT series integrates the most powerful CT reconstruction and visualization software available, including modules for calibration, measurement, real-time density segmentation and surface extraction (point cloud and CAD capabilities).