Study of multi-plane microfocus swing laminography for the flat components

The inspection of flat components like soldered joints with complex structures is a very important application of non-destructive test and requires high sophisticated nondestructive testing methods. Based on the microfocus X-ray radiation imaging system, a new reconstruction method will be put forward in this project. These objects can be analyzed with computed laminography (CL) which requires a simple swing of the object to be inspected through the fan bean of a X-ray source. The object is irradiated by the X-rays under different angles. Image processing can be applied in combination with the multi-plane reconstruction for resolution and contrast enhancement. Linear reconstruction algorithm is based on the filtered or unfiltered back projection or averaging method respectively. Non-linear reconstruction can be derived from methods for object tracing. The authors applied extreme value methods and developed a correlation method