Dose 2016

Performance testing – ex. Accuracy of configuration data- volume averaging

Vendor: Beam modeling- dose calculation algorithms

User:

User: Configuration data (measurements); tunning of conf. parameters Configuration data 3 beam models

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cal

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al

s

High resolution 2D array measurements

Planar fluence prediction

TPS

IMRT plan

MapCheck (Sun Nuclear)

Three beam models (profiles)

• 6mm diameter ion chamber • 4mm diameter ion chamber

Gamma analysis (3%-3mm)

• True profiles (analytic fitting/deconvolution)

Guanghya Yan et al. Med Phys 35(8) 2008

Utretch 2016