Fig. 1From: Development of a PMMA phantom as a practical alternative for quality control of gamma knife® dosimetrySchematic diagrams and photographs of the PMMA phantom. a Design of the phantom with the chamber-hosting inner phantom. b Design of the phantom with the xy-plane film-hosting inner phantom. c Manufactured phantom combined with the chamber-hosting inner phantom. d The xz-plane film-hosting (left) and xy-plane film-hosting inner phantom (right)Back to article page