1. Institut Langevin ESPCI Paris PSL Research University CNRS UMR 7587 INSERM U979Paris 75012 France
2. School of Engineering Cardiff University Cardiff CF24 3AA United Kingdom
3. Department of Radiation Oncology Langone Medical Center New York University New York NY 10016 USA
4. Turku PET Centre Turku University Hospital Turku 20521 Finland
5. Department of Medical PhysicsMemorial Sloan Kettering Cancer Center New York NY 10065 USA
6. INSERM UMR 1101 LaTIM IBSAM UBO UBL Brest 29609 France
7. Medicine and Surgery DepartmentUniversity of Milano‐Bicocca Monza 20900 Italy
8. Department of Electronics Information and BioengineeringPolitecnico di Milano Milano 20133 Italy
9. Department of Radiation OncologyUniversity of Michigan Ann Arbor MI 48103 USA
10. School of Medicine and Public HealthUniversity of Wisconsin Madison WI 53705 USA
11. Department of Radiation Oncology University of North Carolina Chapel Hill NC 27599 USA
12. Division of Nuclear Medicine & Molecular ImagingGeneva University Hospital Geneva CH‐1211 Switzerland
13. Department of Imaging PhysicsMD Anderson Cancer Center Houston TX 77030 USA
14. IREC/MIRO Université catholique de Louvain (IREC/MIRO) & FNRS Brussels 1200 Belgium