1. Institute of Radiology University Hospital Erlangen Erlangen Germany
2. Joint Department of Physics The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust London United Kingdom
3. Department of Medical Physics in Radiology German Cancer Research Center (DKFZ) Heidelberg Germany
4. Center for Medical Physics and Engineering Friedrich‐Alexander‐Universität Erlangen‐Nürnberg (FAU) Erlangen Germany