Research on micro-CL geometric errors

Computed laminography (CL) is a nondestructive testing technique for planar objects. It has been applied in applications like printed circuit board inspection and paleontological fossils research. However, the CL system calibration is a challenging task for complex mechanical structure and many degrees of freedom. To evaluated the influence of geometric errors, a new-type microscopic CL (micro-CL) with different kinds of geometric errors was simulated. The results can guide the installation and calibration of a micro-CL scanner.