First K-Edge Imaging With a Micro-CT Based on the XPAD3 Hybrid Pixel Detector

We investigate the capability to perform K-edge imaging with the newly developed micro-CT PIXSCAN based on the XPAD3 hybrid pixel detector. The XPAD3 detector surface of
$8~{\rm cm} \times 11~{\rm cm}$
makes it possible to perform whole body mouse imaging. We present a proof of principle of K-edge imaging of mouse-size phantoms filled with Silver and Iodine solutions. Results are compared with standard X-ray absorption tomography for several solution densities.