1149 / 1245
Performance testing – ex. Accuracy of configuration data-
volume averaging
IMRT plan
TPS
Planar
fluence
prediction
High resolution 2D array
measurements
MapCheck (Sun Nuclear)
Gamma analysis (3%-3mm)
User:
Configuration data
(measurements);
tunning of conf.
parameters
Vendor:
Beam
modeling-
dose
calculation
algorithms
User:
Configuration data
3 beam models
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