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15
Source size determination by fitting calculated dose
profiles to measured profiles for 10x10 cm
2
fields.
Results from 59 clinical Siemens machines in Nucletrons customer database
“As expected”
Large detectors?
Outliers
Siemens Primus 18MV
0.000
0.050
0.100
0.150
0.200
0.250
0.300
0.350
0.400
0.450
0.500
0.000
0.200
0.400
0.600
CP
[cm]
GT
[cm]
Siemens Oncor 6MV
0.000
0.200
0.400
0.600
CP
[cm]
0.000
0.050
0.100
0.150
0.200
0.250
0.300
0.350
0.400
0.450
0.500
GT
[cm]