Dose Course Book

906-907 / 2239

Source size determination by fitting calculated dose
profiles to measured profiles for 10x10 cm2 fields.
Results from 59 clinical Siemens machines in Nucletrons customer database
Siemens Primus 18MV
0.450
0.500
Siemens Oncor 6MV
0.450
0.500
15
“As expected”
Large detectors?
Outliers
0.000
0.050
0.100
0.150
0.200
0.250
0.300
0.350
0.400
0.000 0.200 0.400 0.600
CP [cm]
GT
[cm]
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
GT
[cm]