K-edge subtraction imaging for coronary angiography with a compact synchrotron X-ray source - Fig 1

(a) Schematic of the experimental set-up at the Munich Compact Light Source (MuCLS): X-rays are produced at the interaction point of laser photons stored in the optical cavity and relativistic electrons circulating in the storage ring. These propagate in a vacuum tube to the experiment at a source-to sample distance of 15.5 m. The detector is located at a distance of 16 m from the interaction point. (b) X-ray spectrum with the peak energy tuned to 33.49 keV measured with a KETEK AXAS-D detector, shown together with the iodine attenuation coefficient. (c) Photograph of the experimental set-up showing the iodine filter in front of a porcine coastal arch and a porcine heart.