1. Department of Physics of Molecular Imaging Systems, Institute for Experimental Molecular Imaging, RWTH Aachen University Aachen Germany
2. Hyperion Hybrid Imaging Systems GmbH Aachen Germany
3. Philips Digital Photon Counting (PDPC) Aachen Germany
4. Fraunhofer Institute for Digital Medicine MEVIS Aachen Germany
5. III. Institute of Physics B RWTH Aachen University Aachen Germany