Applicazione della tomografia computerizzata con raggi x allo studio di monete archeologiche

X-ray computed tomography is an advanced non-destructive and non-invasive method of investigation able to provide important information on archaeological findings and works of art, from their internal structure to their state of conservation. An example of its potential is the analysis of ancient coins. Frequently they present a superficial layer of concretions and corrosion products that makes the surface illegible, and therefore their identification impossible. Through X-ray tomography, it is possible to bring these data to light in a completely safe way for these precious objects. In order to highlight the potential of the technique, we will present some of the results obtained with the tomographic analysis of some Roman and Byzantine coins, coming from two different sites, located respectively in Rome and Naples.