1. Faculty of Physics, Astronomy, and Applied Computer Science and Total Body Jagiellonian-PET Laboratory, Jagiellonian University, Kraków, Poland
2. Faculty of Physics, University of Vienna, Vienna, Austria
3. Department of Complex Systems, National Centre for Nuclear Research, Otwock-Świerk, Poland
4. High Energy Physics Division, National Centre for Nuclear Research, Otwock-Świerk, Poland
5. Department of Electronics and Information Systems, MEDISIP, Ghent University-IBiTech, Ghent, Belgium