Session

Overview: ESTRO uniquely unites the photon and particle therapy communities, offering a rare setting for true cross-fertilization. Yet, despite sharing many conceptual challenges, both fields often evolve in partial isolation. This session explores how advances, from treatment planning to imaging and adaptation, can be translated across modalities and extend their impact beyond their original context. Progress does not follow a single trajectory: each community has driven distinct developments that remain underexploited by the other. By making these complementarities explicit, the session aims to foster a more integrated perspective—where radiotherapy advances not in isolated islands, but through deliberate exchange.