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Output factor measurements
using detectors of different materials.
Aluminium central electrode
@
10cm depth
Pinpoint
chamber
2
Diamond
microLion
3
125 mm
3
air
ion chamber
3%
Krauss [20]
1
PTW recommends max photon field size: 10x10 cm
2
2
PTW recommends max photon field size: 30x30 cm
2
3
PTW recommends max photon field size: 20x20 cm
2