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1.05
1.10
Head scatter factors for KSClinac2100C, 18 MV
at isocenter
enter for 10x10 cm 2
Outercollimator varied
Characterization result
Measurements
45
10
20
30
40
Varied collimator field width
0.90
0.95
1.00
Energy fluence
Energy fluence at isoc
Innercollimator varied
Square fields
Field sizes at which the entire
flattening filter is viewed