Authors: Natalie L. Abbott1, Ane Appelt2, Stephane Chauvie3, Catherine DeJean4, Anne Gasnier5, Efi Koutsouveli6, Albert Lisbona7, Marco Luzzara8, Loredana Marcu9, Christos Melidis10, Lorenzo Nicola Mazzoni11, Jim O' Doherty12, Rens Wientje13, Christian Rønn Hansen14
1National RTTQA Group, Velindre Cancer Center, Radiotherapy Physics Department., Cardiff, United Kingdom; 2Leeds Institute of Medical Research at St James’s, University of Leeds;, Department of Medical Physics and Engineering, Leeds Cancer Centre, St. James’ University Hospital., Leeds, United Kingdom; 3Santa Croce e Carle Hospital, Department of Medical Physics, Cuneo, Italy; 4 Centre Antoine-Lacassagne, ., Nice, France; 5Centre Henri Becquerel, Radiotherapy Department, Rouen, United Kingdom; 6Hygeia Hospital, Department of Medical Physics, Athens, Greece; 7Institut de Cancérologie de l'Ouest, Bd J.Monod, ., Saint Herblain, France; 8Elekta AB, Stockholm.;, Elekta Medical Affairs global team, ., Italy; 9Faculty of Informatics & Science, University of Oradea;, Cancer Research Institute, University of South Australia, Adelaide, Oradea, Romania; 10CAP Santé, Clinique Maymard;, milliVolt.eu., Bastia, France; 11Azienda USL Toscana Centro, SOC Fisica Sanitaria, ., Pistoia-Prato, Italy; 12Siemens Medical Solutions, Malvern PA, USA; Department of Radiology and Radiological Sciences, Medical University of South Carolina, Charleston SC, USA;, Radiography & Diagnostic Imaging, University College Dublin, Dublin, Ireland., ., USA; 13University Medical Centre, ., Utrecht, The Netherlands; 14Laboratory of Radiation Physics, Odense University Hospital; Institute of Clinical Research, University of Southern Denmark;, Danish Centre for Particle Therapy, Aarhus University Hospital, Denmark, Odense, Denmark