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Performance testing – ex. Accuracy of
configuration data- volume averaging
IMRT
plan
TPS
Planar
fluence
prediction
High resolution 2D
array measurements
MapCheck (Sun Nuclear)
User:
Configuration data
(measurements);
tunning of conf.
parameters
Vendor:
Beam
modeling-
dose
calculation
algorithms
-
cal
i n
al
s
User:
Configuration data
3 beam models
Utretch 2016
Gamma analysis (3%-3mm)
Three beam models
(profiles)
•
6mm diameter ion chamber
•
4mm diameter ion chamber
•
True profiles (analytic
fitting/deconvolution)
Guanghya Yan et al. Med Phys 35(8) 2008