1. Department of Diagnostic and Interventional Radiology University Hospital Ulm Ulm Germany
2. Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar Technical University of Munich Munich Germany
3. TUM‐Neuroimaging Center, Klinikum rechts der Isar Technical University of Munich Munich Germany
4. Radiotherapy, Division Imaging and Oncology University Medical Center Utrecht Utrecht The Netherlands
5. Undertone.design Bern Switzerland
6. Department of Imaging Physics Delft University of Technology Delft The Netherlands
7. Department of Diagnostic and Interventional Radiology University Hospital Wuerzburg Wuerzburg Germany
8. Department of Radiology University of Michigan Ann Arbor Michigan USA
9. Physical Measurement Laboratory National Institute of Standards and Technology Boulder Colorado USA
10. Queen Square Institute of Neurology University College London London UK
11. Gold Standard Phantoms Sheffield UK
12. Bioxydyn Manchester UK
13. The Institute of Cancer Research London UK
14. The Royal Marsden NHS Foundation Trust London UK