Dose 2016

Performance testing – ex. Feed back configuration parameters

Vendor: Beam modeling- dose calculation algorithms

User: Configuration data (measurements); tunning of conf. parameters User: Configuration data (measure ents); tunning of conf. para eters

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cal

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TPS

High resolution 2D array measurements MapCheck (Sun Nuclear) sampling 0.2 mm

Planar fluence prediction

IMRT plan

Configuration parameters

Jaw and MLC transmission Radiation source size

Cost function= 1-Gamma evaluation pass rate

Extrafocal radiation contribution MLC rounded lef-end transmission

2%-1mm Th 10% Tolerance 85% points

Utretch 2016