Dr Tracy Underwood is a business-based, UKRI Future Leaders Fellow at Leo Cancer Care. She is also an Honorary Senior Research Fellow at University College London. Together with her collaborators she is researching many aspects of upright radiotherapy, including: anatomical changes, immobilisation methods and patient perspectives.

Dr Lennart Volz is a PostDoc Researcher at GSI Helmholtz Centre for Heavy Ion Research GmbH. His research focus is on advanced beam delivery options for proton and heavy ion therapy, such as upright radiotherapy, particle arc therapy and particle imaging. With the overall vision to improve treatment effectiveness, cost efficiency, and safety, he works on enabling new synergies between these fields for better patient care.

Dr Ye Zhang is a research scientist at the Center for Proton Therapy at the Paul Scherrer Institute. Her areas of interest involve comprehending anatomical changes, creating AI-based image synthesis for treatment planning, and integrating onboard MRI with upright proton therapy systems.

Dr Petra Trnkova is a clinical medical physics researcher at the Medical University of Vienna. Her research focuses on online daily adaptive radiotherapy, ocular proton therapy, and upright positioning for treatment sites impacted by motion.