SYSTEM AND METHOD FOR FIXED FOCUS LONG FORMAT DIGITAL RADIOGRAPHY

摘要

An X-ray imaging system comprising a motorised X-ray tube located at a fixed focus position (12) relative to an object (14) to be imaged, and a motorised detector (18) for detecting the intensity distribution of radiation transmitted through the object. A control system (22) is provided for calculating two or more angles (Ot1) from which the object (14) should be exposed to radiation in order to cover the entire exposure field (H) occupied by the object (14) and for causing the X-ray tube to be rotated around the fixed focus position (12) so as to expose the object (14) to radiation from each of the respective angles (Ot1). The movement of the detector (18) is also performed automatically so as to correspond with the exposure angles so as to create two or more respective images of respective regions of the object (14) which can be subsequently stitched together to create a complete image thereof.