Meier, G Contour scanning for penumbra improvement in pencil beam scanned proton therapy. [electronic resource] - Physics in medicine and biology 03 2017 - 2398-2416 p. digital Publication Type: Journal Article ISSN: 1361-6560 Standard No.: 10.1088/1361-6560/aa5dde doi Subjects--Topical Terms: HumansOrgans at RiskPhantoms, ImagingProton Therapy--methodsRadiation DosageRadiotherapy DosageRadiotherapy Planning, Computer-Assisted--methodsRadiotherapy, Intensity-Modulated--methods