For production process control of complex and expensive components, Computed Tomography (CT) becomes the technology of choice for many inspection and metrology tasks, e.g. for automotive castings, aerospace turbine blades or 3D printed parts which by nature have hidden features. A major challenge is the increased cycle time requirements combined with high inspection depth which requires improved methods to deal with imaging artifacts.
Scattering of X-rays is the main factor for such artifacts in CT. While state of the art scatter reduction simulates scatter based on CAD data or sample’s material properties, Waygate Technologies's proprietary Scatter|correct technology is really measuring the scatter portion of that specific sample in the CT scanner and minimizes it from the CT result for every individual voxel. The new patented method drives inspection throughput and precision of high energy CT applications to scan difficult to penetrate samples with a relatively high atomic number such as metals which are actually performed with highly collimated classical 2D fan beam CT. It allows customers to gain CT quality never before reached with industrial flat panel based cone beam CT. By combining high precision fan beam CT quality with the up to 100 times higher throughput of fully automated cone beam CT, the significantly increased inspection productivity allows CT to migrate from R&D applications to serial inspection on the production floor.