A polychromatic X-ray radiograph simulator has been developed to assist the structured exploration of the parameter space of X-ray computed tomography for dimensional and surface metrology. The simulator is capable of simulating polychromatic X-ray spectra, at user defined binning sets to produce radiographic images. This approach differs from existing simulation software in the use of a sparse matrix multiplication approach, between a geometry matrix and a voxel description, of the object to create both the cone beam and the focal spot geometries. Future work will aim to use this framework for the incorporation of scatter approximations.
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