Industrial radiography and tomography based on scanning linear scintillator array

We have developed an industrial CT and Digital Radiography system (CT/DR) for NDT at the USC (Spain). A 510 mm long detector array of 640 detection elements with sub-millimetre spacing (0.8 mm), together with a 50kV mini-focus tube have been integrated in a 3-axis positioning system of flexible configuration. Accurate characterization of geometrical parameters and system commissioning has been performed. System calibration algorithm has been implemented to correct for channel response variations. Other artifact sources, like beam hardening and scatter radiation, have been experimentally optimized. System capability to perform CT and DR scans has been demonstrated and several images of phantoms and weldings are shown.