Patent ID: 6819739
Filing Date: 2004-11-16
Classification: G01N,H01J,H05G

Abstract:
An x-ray laminography imaging system comprising:a stationary x-ray source; a target anode; an x-ray detector, the x-ray source generating a moving pattern of x-ray spots on the target anode synchronously with rotation of the x-ray detector to reduce or eliminate the need to move an object being imaged by the system; first logic configured to gather empirical calibration data generated during physical calibration of the system during which the stationary x-ray source generates a moving pattern of x-ray spots on the target anode synchronously with rotation of the x-ray detector, the empirical data corresponding to offsets to locations at which the x-ray spots of an on-axis x-ray spot pattern are formed on the target anode; second logic configured to analytically derive calibration data from the empirical data, the analytically-derived calibration data corresponding to offsets to locations at which x-ray spots of an off-axis x-ray spot pattern are formed on the target anode; and third logic configured to calibrate the system using the empirical data and the analytically-derived calibration data.