Novotny, Josef Assessment of variation in Elekta plastic spherical-calibration phantom and its impact on the Leksell Gamma Knife calibration. [electronic resource] - Medical physics Sep 2010 - 5066-71 p. digital Publication Type: Journal Article ISSN: 0094-2405 Standard No.: 10.1118/1.3481508 doi Subjects--Topical Terms: Acrylic ResinsButadienesCalibrationPhantoms, ImagingPlasticsPolystyrenesRadiation DosageRadiosurgery--instrumentation