Simulation of Computed Radiography X-ray Imaging Chain Dedicated to Complex Shape Objects
Résumé
Computed Radiography (CR) based on photostimulable imaging plate (IP) is increasingly used in the field of non-destructive testing. For the inspections of high attenuation specimens employing high energy sources, the CR performance is poor because of the response of the IP. Simulation is a very useful tool to predict experimental outcomes and determine the optimal operating conditions. We propose a hybrid simulation approach which combines the use of both deterministic and MC codes for simulating rapidly a complex geometry imaging setup. This approach allows us to take into account the degradation effect introduced by X-ray scattering and fluorescence transport as well as the optical photon scattering taking place in IP during X-ray exposure and optical readout processes. The results of different simulation configurations are compared.
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