Simulation model for radiography

Monte Carlo simulation model for X-ray nondestructive inspection is proposed. As the shape of the object is represented by means of the conbinatorial geometry, this model is applicable to the various configurations of material with the any numbers of internal defects. It has been shown that this model gives not only the whole aspect of the inspection at once, and also the contributions of the multiple scattering, both of which are difficult to estimate in the ordinary analytical approaches. (author)