1. Department of Medical Physics Faculty of Physics Ludwig‐Maximilians‐Universität München München Germany
2. Department of Physics Northern Illinois University DeKalb Illinois USA
3. Northwestern Medicine Chicago Proton Center Warrenville Illinois USA
4. University of Lyon INSA‐Lyon Université Claude Bernard Lyon 1 Lyon France
5. Division of Biomedical Engineering Sciences Loma Linda University Loma Linda California USA
6. Department of Physics U.C. Santa Cruz Santa Cruz California USA
7. ProtonVDA LLC Naperville Illinois USA
8. Department of Radiation Oncology University Hospital LMU Munich Munich Germany
9. German Cancer Consortium (DKTK) Munich Germany