475 / 1332
Mid Line Block
Normalization
•
For corner shielding,
normalization at the
isocentre
•
For Midline block- at a
reference point
TPS modelling
–
Accurate modeling in TPS
–
Central axis is blocked
Central axis blocked
0
20
40
60
80
100
-17
-7
3
13
Distance(cm)
Dose(%)
Measured_crline
TPS_crline
Measured_inline
TPS_inline
Swamidas et al, ACPSEM 2009