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ESTRO IMRT course 2015
Dose Calculation in Static and Rotational IMRT
Brussels October 8th, 2015
-21-
Effects of the beam modulating elements that need
to be modeled for high-precision dose calculation
•
leaf transmission, (jaw transmission)
•
inter-leaf leakage
•
leaf/jaw tip factors (influence on penumbra shapes)
•
tongue-and-groove
•
systematic leaf offsets
•
correction factors for MLC/jaw backscatter into Monitor chamber
→
most of these effects were discussed in the presentations of Marco Schwarz:
“IMRT delivery techniques”
“TPS commissioning”