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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