µTomo@STAR - Extending microtomography technique
by
Sala de Conferências
Departamento de Física
The non-invasive techniques are the best choice in several fields of the wide material science world such as energy, mechanics, electronics, aeronautics, archaeometry, paleontology, earth science. Among them, in the last decades, the synchrotron-based microtomography arose as an ultimate standard able to unveil the inner structure of massive samples with unprecedented details and contrast.
The main feature of this technique is the association of the X-ray penetration depth with the phase contrast sensitivity. The limited penetration for dense materials (heavy metals, large lithic objects) can be overcome by increasing the photon energy.
The µTomo experimental station will use the hard X-rays (up to 350 keV) delivered by the STAR source paving the way for detecting the interior content of bulky objects. STAR is a monochromatic, tunable, polarized, collimated hard x-ray source based on the Inverse Compton Scattering of a pulsed and intense IR laser beam by relativistic electrons (40-150 MeV). The STAR source and the µTomo experimental station are hosted in the STAR_Lab research infrastructure of the University of Calabria, Italy.
Representative results in cultural heritage field are presented and discussed as case studies
Filipe Veloso e Pedro Costa
