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IMRT plan
TPS
Planar
fluence
prediction
High resolution 2D array
measurements
MapCheck (Sun Nuclear)
sampling 0.2 mm
Cost function= 1-Gamma evaluation pass rate
User:
Configuration data
(measurements);
tunning of conf.
parameters
Vendor:
Beam
modeling-
dose
calculation
algorithms
User:
Configuration data
(measurements);
tunning of conf.
Parameters
Configuration parameters
Jaw and MLC transmission
Radiation source size
Extrafocal radiation contribution
MLC rounded lef-end transmission
2%-1mm Th 10% Tolerance 85% points
Performance testing – ex. Feed back configuration
parameters